commit 290f629d2cb1a922e671798b02bdd1c5f3c8b6c6
Author: zpooi <doukayun@gmail.com>
Date:   Wed Dec 3 23:08:39 2025 +0800

    课程代码

diff --git a/datastructure/2025301205+施光甲+实验一.cpp b/datastructure/2025301205+施光甲+实验一.cpp
new file mode 100644
index 0000000..8cf6f08
--- /dev/null
+++ b/datastructure/2025301205+施光甲+实验一.cpp
@@ -0,0 +1,253 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct LNode
+{
+     int data;                    //������
+     struct LNode *next;         //ָ����
+}LNode,*LinkList;                // LinkListΪָ��LNode���͵�ָ������
+
+// ��ʼ���ĸ�����L��M��N��H
+void chushihua(LinkList &L, LinkList &M, LinkList &N, LinkList &H)   
+{
+	//todo list 1: Ϊ�ĸ���������ͷ�ڵ㲢��ʼ��
+	L = (LinkList)malloc(sizeof(LNode));
+	L->next = NULL;
+	M = (LinkList)malloc(sizeof(LNode));
+	M->next = NULL;
+	N = (LinkList)malloc(sizeof(LNode));
+	N->next = NULL;
+	H = (LinkList)malloc(sizeof(LNode));
+	H->next = NULL;
+	printf("������ʼ���ɹ���\n");
+}
+
+// �ж�����L�Ƿ�Ϊ�ձ�
+void Emp(LinkList &L)   
+{
+	if (L->next == NULL)  //todo list 2: �ж�ͷ�ڵ��next�Ƿ�Ϊ��
+		printf("����Ϊ�ձ���\n");
+	else
+		printf("����Ϊ�ǿձ���\n");
+}
+
+// �����������L������Ԫ�ظ���
+void Length(LinkList L){ 
+    LNode *p;     //������ʱ����p
+    p = L->next;  //pָ���һ�����(��Ԫ���)
+    int length = 0;             
+	//todo list 3: ����������,ͳ�ƽ����
+	while (p != NULL) {
+		length++;
+		p = p->next;
+	}
+    printf("����������%d\n", length);                            
+}
+
+// 1��������������������������L�в���n������������ʱ���������������ԣ���С���󣩡�
+void charu_1(LinkList &L, int n)
+{
+	LNode *q,*p;
+	int i;  // ѭ����������
+	for (i = 1; i <= n; i++)
+	{
+		p = L;                          //��ÿ��ѭ����ʼʱ����pָ��������ͷ�ڵ�L
+		q = (LinkList)malloc(sizeof(LNode));  //Ϊ�µĽڵ�����ڴ棬����qָ������ڴ� 
+		printf("�������%d��������ֵ��", i);
+		scanf("%d", &q->data);                   //�������ֵ�洢��qָ��Ľڵ��data�ֶ���
+		q->next = NULL;                          //���½ڵ��nextָ������ΪNULL����ʾ�½ڵ㵱ǰ��ָ���κνڵ㡣
+
+		if (p->next == NULL)    //���p����һ���ڵ���NULL��������Ϊ�ջ�pָ�����������һ���ڵ㣩
+	       //todo list 4: ֱ�Ӳ����½ڵ�
+	       L->next = q;
+		else          //���������Ϊ�ջ�p����ָ�����������һ���ڵ㣬��������else�飨�����½ڵ�IJ���λ�ã� 
+		{
+			while (p->next != NULL && p->next->data < q->data)
+			{
+				//todo list 5: pָ�벻�������ƶ� 
+				p = p->next;
+				if (p->next == NULL)
+					break;
+			}
+			//todo list 6: ����*q��� 
+			q->next = p->next;
+			p->next = q;
+		}
+	}
+	printf("���ݲ�����ɣ�\n");
+}
+
+// ��ʾ����L������Ԫ��
+void xianshi(LinkList &L)
+{
+	LNode *p;     //������ʱ����p     //LinkList p;
+	p = L;
+	while (p->next != NULL)
+	{
+		printf("%4d", p->next->data);
+		p = p->next;
+	}
+	printf("\n");
+}
+
+// 2���ֽ⣺������L�е�Ԫ�ط�Ϊ������ż����������M��N�����ֱ���ʾ���ǡ�
+void fenbiao(LinkList &L, LinkList &M, LinkList &N)
+{
+	LNode *j,*o,*p;
+	p = L->next;  //todo list 7: pָ��ָ���һ�����ݽڵ�
+	
+	// ��ʼ��M��N����
+	M->next = NULL;
+	N->next = NULL;
+	
+	LNode *m_tail = M;  // M������βָ��
+	LNode *n_tail = N;  // N������βָ��
+	
+	while (p != NULL)
+	{
+		if (p->data % 2 == 0)   //�ҳ�ż��Ԫ�أ���β�巨����Щż��Ԫ�ؽ�����һ����ż�������� 
+		{
+			o = (LinkList)malloc(sizeof(LNode));
+			//todo list 8: ʹ��β�巨����ż���ڵ�
+			o->data = p->data;
+			o->next = NULL;
+			n_tail->next = o;
+			n_tail = o;
+		}
+		else                   //�ҳ�����Ԫ�أ���β�巨����Щ����Ԫ�ؽ�����һ�������������� 
+		{
+			j = (LinkList)malloc(sizeof(LNode));
+			//todo list 9: ʹ��β�巨���������ڵ�
+			j->data = p->data;
+			j->next = NULL;
+			m_tail->next = j;
+			m_tail = j;
+		}
+		//todo list 10: pָ�������ƶ�
+		p = p->next;
+	}
+	printf("����������");
+	xianshi(M);
+	printf("ż������Ϊ��");
+	xianshi(N);
+}
+
+// 3���ϲ�һ���ݼ�����������������J��ż������O�ϲ�Ϊһ���µ�����H���ϲ�ʱ����Ԫ�ص������ԡ�
+void hebiao(LinkList &J, LinkList &O, LinkList &H)
+{
+	// �Ƚ���������ת��Ϊ���飬Ȼ�����������ͷ�巨�����ݼ�����
+    int data[100];  // �������100��Ԫ��
+    int count = 0;
+    LNode *p;
+    int i, j;  // ѭ����������
+    LNode *t;
+    
+    // �ռ���������������
+    p = J->next;
+    while (p != NULL) {
+        data[count++] = p->data;
+        p = p->next;
+    }
+    
+    // �ռ�ż������������
+    p = O->next;
+    while (p != NULL) {
+        data[count++] = p->data;
+        p = p->next;
+    }
+    
+    // �����ݽ����������򣨴�С����- ����ͷ�����ɽ���
+    for (i = 0; i < count - 1; i++) {
+        for (j = i + 1; j < count; j++) {
+            if (data[i] > data[j]) {  // ���ǰһ��Ԫ�ش��ں�һ��Ԫ�أ���������
+                int temp = data[i];
+                data[i] = data[j];
+                data[j] = temp;
+            }
+        }
+    }
+    
+    // ʹ��ͷ�巨�����ݼ�����
+    H->next = NULL;
+    for (i = 0; i < count; i++) {
+        t = (LinkList)malloc(sizeof(LNode));
+        t->data = data[i];
+        t->next = H->next;
+        H->next = t;
+    }
+    
+    printf("�ϲ���ĵݼ�����Ϊ��");
+    xianshi(H);  //��ʾ�ϱ�H 
+}
+
+int main()
+{
+	//�����½����Ϊͷ��㣬��ͷָ��ֱ�ָ���ͷ��� 
+	LinkList head = (LinkList)malloc(sizeof(LNode));  
+	LinkList ji = (LinkList)malloc(sizeof(LNode));
+	LinkList ou = (LinkList)malloc(sizeof(LNode));
+	LinkList he = (LinkList)malloc(sizeof(LNode));
+
+	// ��ʼ������
+	head->next = NULL;
+	ji->next = NULL;
+	ou->next = NULL;
+	he->next = NULL;
+
+	int choose = -1, n;
+	printf("*********************************************\n");
+	printf("**********            ʵ��һ          *******\n");
+	printf("**********        ����������          *******\n");
+	printf("*********************************************\n");
+	printf("**********     1.��ʼ��������         *******\n");
+	printf("**********     2.������������       *******\n");
+	printf("**********     3.�ֳ���/ż������       *******\n");
+	printf("**********     4.�ϲ��ɵݼ�������       *******\n");
+	printf("**********     5.��ʾ������(����)����������        *******\n");
+	printf("**********     6.����������          *******\n");
+	printf("**********     7.�ж������Ƿ�Ϊ��     *******\n");
+	printf("**********     0.�˳�����             *******\n");
+	printf("*********************************************\n");
+	
+	while (choose)
+	{
+		printf("����������ѡ��");
+		scanf("%d", &choose);
+		switch (choose)
+		{
+		case 1:
+			chushihua(head, ji, ou, he); 
+			break;
+		case 2:
+			printf("������Ҫ���������������");
+			scanf("%d", &n);
+			charu_1(head, n);
+			break;
+		case 3:
+			fenbiao(head, ji, ou); 
+			break;
+		case 4:
+			hebiao(ji, ou, he); 
+			break;
+		case 5:
+			printf("��ǰ(����)����������Ϊ��");
+			xianshi(head); 
+			break;
+		case 6:
+			Length(head); 
+			break;
+		case 7:
+			Emp(head); 
+			break;
+		case 0:
+			printf("�������˳�����лʹ�ã�\n");
+			exit(0); 
+			break;
+		default:
+			printf("����������������룡\n"); 
+			break;
+		}
+	}
+	return 0;
+}
diff --git a/datastructure/2025301205+施光甲+实验三.cpp b/datastructure/2025301205+施光甲+实验三.cpp
new file mode 100644
index 0000000..2c1c068
--- /dev/null
+++ b/datastructure/2025301205+施光甲+实验三.cpp
@@ -0,0 +1,136 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define MAXSIZE 10
+typedef struct Queue
+{
+    int *data; //�洢�ռ�Ļ���ַ 
+    int front, rear; //ͷָ�롢βָ�� 
+    int count;  //����һ�� count���������ڼ�¼����Ԫ�ظ��� 
+}Queue;
+
+//��ʼ������
+void Init(Queue &Q)
+{
+    Q.data = new int[MAXSIZE];
+    //����front, rearָ�룬�Լ�count����
+    Q.front = 0;
+    Q.rear = 0;
+    Q.count = 0; 
+}
+
+//���
+void EnQueue(Queue &Q, int e)
+{
+    if (Q.count == MAXSIZE) //����count�ж϶��Ƿ���
+        printf("����\n");
+    else {
+        //���Ԫ�أ�βָ��+1
+        Q.data[Q.rear] = e;
+        Q.rear = (Q.rear + 1) % MAXSIZE; //ѭ�����У���Ҫȡģ
+        //����countֵ
+        Q.count++;
+        printf("Ԫ��%d��ӳɹ�\n", e);
+    }
+}
+
+//����
+void DelQueue(Queue &Q, int &e)
+{
+    if (Q.count == 0)  //����count�ж϶��Ƿ��
+        printf("�ӿ�\n");
+    else{
+        //����Ԫ�أ�ͷָ��+1
+        e = Q.data[Q.front];
+        Q.front = (Q.front + 1) % MAXSIZE; //ѭ�����У���Ҫȡģ
+        //����countֵ
+        Q.count--;
+        printf("����Ԫ��Ϊ:%d\n", e);
+    }
+}
+
+//�ж϶ӿ�
+void IsNull(Queue Q)
+{
+    if (Q.count == 0)   //����count�ж϶��Ƿ��
+        printf("�ӿ�\n");
+    else
+        printf("�Ӳ���\n");
+}
+
+//��ʾ��������
+void Display(Queue Q)
+{
+    if (Q.count == 0) {
+        printf("������\n");
+        return;
+    }
+    
+   int tempFront = Q.front;    // ʹ����ʱ�����������޸�ԭ����
+    int tempCount = Q.count;    // ʹ����ʱ����
+    
+    while (tempCount > 0)
+    {
+        printf("%3d,", Q.data[tempFront]);
+        tempFront = (tempFront + 1) % MAXSIZE;  // ��ʱָ�����
+        tempCount--;                            // ��ʱ������1
+    }
+    printf("\n");
+}
+
+int main()
+{
+    Queue Q;
+    printf("------------------------------------\n");
+    printf("1.��ʼ������\n");
+    printf("2.�ж϶����Ƿ�Ϊ��\n");
+    printf("3.���\n");
+    printf("4.����\n");
+    printf("5.��ʾ��������\n");
+    printf("6.�˳�\n");
+    printf("------------------------------------\n");
+    int sel;
+    while (1)
+    {
+        printf("������ѡ��:");
+        scanf("%d", &sel);
+        switch (sel)
+        {
+        case 1:
+            Init(Q);
+            printf("�����Ѿ���ʼ����\n");
+            break;
+        case 2:
+            IsNull(Q);
+            break;
+        case 3:
+        {
+            int n, e;
+            printf("���������Ԫ�ظ���:");
+            scanf("%d", &n);
+            printf("��������Ҫ��ӵ�%d��Ԫ��:",n);
+            for (int i = 0; i < n; i++)
+            {
+                scanf("%d", &e);
+                EnQueue(Q, e);
+            }
+        }
+        break;
+        case 4:
+        {
+            int e;
+            DelQueue(Q, e);
+        }
+        break;
+        case 5:
+            printf("����Ϊ:");
+            Display(Q);
+            break;
+        case 6:
+            exit(0);
+        default:
+            printf("��Чѡ��\n");
+        }
+    }
+    return 0;
+}
diff --git a/datastructure/2025301205+施光甲+实验二.cpp b/datastructure/2025301205+施光甲+实验二.cpp
new file mode 100644
index 0000000..a7d262a
--- /dev/null
+++ b/datastructure/2025301205+施光甲+实验二.cpp
@@ -0,0 +1,256 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct PNode
+{   
+    int index;  //ָ��
+    int coe;   // ϵ��
+    struct PNode  *next;  //ָ����
+}PNode,*Polynomial;
+
+// ��ʼ����������ʽ����
+void chushihua(Polynomial *L, Polynomial *M, Polynomial *N)
+{
+    //todo list 1: Ϊ������������ͷ�ڵ㲢��ʼ��
+    *L = (Polynomial)malloc(sizeof(PNode));
+    (*L)->next = NULL;
+    *M = (Polynomial)malloc(sizeof(PNode));
+    (*M)->next = NULL;
+    *N = (Polynomial)malloc(sizeof(PNode));
+    (*N)->next = NULL;
+}
+
+// �ж������Ƿ�Ϊ��
+void Emp(Polynomial L)
+{
+    if (L->next == NULL)
+        printf("����Ϊ�ձ���\n");
+    else
+        printf("����Ϊ�ǿձ���\n");
+}
+
+// ����������
+void Length(Polynomial L)
+{
+    PNode *p;
+    int length = 0;
+    //todo list 2: ��������ͳ�ƽڵ����
+    p = L->next;
+    while (p != NULL) {
+        length++;
+        p = p->next;
+    }
+    printf("����������%d\n", length);
+}
+
+// 1������������ָ����������������������ڵ㣬����һԪ����ʽ
+// 1������������ָ����������������������ڵ㣬����һԪ����ʽ
+void charu_1(Polynomial L) {
+    PNode *q, *p;
+    int n, i;
+    printf("��������Ҫ������һԪ����ʽ��������\n");
+    scanf("%d", &n);
+    for (i = 1; i <= n; i++) {
+        p = L;
+        q = (Polynomial)malloc(sizeof(PNode));
+        printf("�������%d���ϵ����ָ����", i);
+        scanf("%d%d", &q->coe, &q->index);
+        q->next = NULL;
+        
+        // ���Ҳ���λ�ã�����ָ������
+        while (p->next != NULL && p->next->index < q->index) {
+            //todo list 3: pָ���ƶ������ʵ�λ��
+            p = p->next;
+        }
+        
+        // ֱ�Ӳ��룬���ϲ���ָͬ������
+        //todo list 4: ��*q�����뵽*p����
+        q->next = p->next;
+        p->next = q;
+    }
+}
+
+
+// ��ʾ���� - ʹ��H�ָ�ϵ����ָ��
+void xianshi(Polynomial L)
+{
+    PNode *p;
+    p = L->next;
+    if (p == NULL) {
+        printf("����ʽΪ��");
+        return;
+    }
+    while (p != NULL)
+    {
+        printf("%dH%d", p->coe, p->index);  // ϵ��Hָ��
+        p = p->next;
+        if (p != NULL) {
+            printf("    ");  // ��֮��ķָ�
+        }
+    }
+    printf("\n");
+}
+
+//2������һԪ����ʽ��� 
+void hebiao(Polynomial J, Polynomial O, Polynomial H) 
+{
+    PNode *p = J->next, *q = O->next, *r = H, *s;
+    
+    // ��ʼ���������
+    H->next = NULL;
+    
+    while (p != NULL && q != NULL) {
+        if (p->index < q->index) {
+            s = (Polynomial)malloc(sizeof(PNode));
+            //todo list 5: ����p�ڵ�����ݵ��½ڵ�s
+            s->coe = p->coe;
+            s->index = p->index;
+            s->next = NULL;
+            //todo list 6: ��s�ڵ���뵽�������H��ĩβ
+            r->next = s;
+            r = s;
+            p = p->next;
+        } else if (p->index > q->index) {
+            s = (Polynomial)malloc(sizeof(PNode));
+            //todo list 7: ����q�ڵ�����ݵ��½ڵ�s
+            s->coe = q->coe;
+            s->index = q->index;
+            s->next = NULL;
+            //todo list 8: ��s�ڵ���뵽�������H��ĩβ
+            r->next = s;
+            r = s;
+            q = q->next;
+        } else {
+            //todo list 9: ����ָ����ȵ���
+            int sum = p->coe + q->coe;
+            if (sum != 0) {
+                s = (Polynomial)malloc(sizeof(PNode));
+                s->index = p->index;
+                s->coe = sum;
+                s->next = NULL;
+                //todo list 10: ���ϲ���������������
+                r->next = s;
+                r = s;
+            }
+            p = p->next;
+            q = q->next;
+        }
+    }
+    
+    //todo list 11: ����ʣ��ڵ� - ����ʽJ
+    while (p != NULL) {
+        s = (Polynomial)malloc(sizeof(PNode));
+        s->coe = p->coe;
+        s->index = p->index;
+        s->next = NULL;
+        r->next = s;
+        r = s;
+        p = p->next;
+    }
+    
+    //todo list 12: ����ʣ��ڵ� - ����ʽO
+    while (q != NULL) {
+        s = (Polynomial)malloc(sizeof(PNode));
+        s->coe = q->coe;
+        s->index = q->index;
+        s->next = NULL;
+        r->next = s;
+        r = s;
+        q = q->next;
+    }
+    
+    printf("��������ʽ��ӵĽ��Ϊ��");
+    xianshi(H);
+}
+
+// �����������
+void clearList(Polynomial L) {
+    PNode *p = L->next;
+    while (p != NULL) {
+        PNode *temp = p;
+        p = p->next;
+        free(temp);
+    }
+    L->next = NULL;
+}
+
+int main()
+{
+    Polynomial head[3];
+    int i;
+    for (i = 0; i < 3; i++) {
+        head[i] = (Polynomial)malloc(sizeof(PNode));
+        head[i]->next = NULL;
+    }
+
+    int choose = -1;
+    
+    printf("*********************************************************\n");
+    printf("**********            ʵ���                      *******\n");
+    printf("*********************************************************\n");
+    printf("**********     1.��ʼ��������                     *******\n");
+    printf("**********     2.������������(��ָ������)         *******\n");
+    printf("**********     3.��ʾ����������                   *******\n");
+    printf("**********     4.����������                     *******\n");
+    printf("**********     5.�жϵ������Ƿ�Ϊ��               *******\n");
+    printf("**********     6.��һԪ����ʽ�ĺ�                 *******\n");
+    printf("**********     0.�˳�                             *******\n");
+    printf("*********************************************************\n");
+    
+    while (choose != 0) {
+        printf("���������ѡ���");
+        scanf("%d", &choose);
+        
+        // ��switch�ⲿ��������
+        PNode *temp;
+        
+        switch (choose) {
+            case 1:
+                chushihua(&head[0], &head[1], &head[2]); 
+                printf("�����Ѿ���ʼ����\n");
+                break;
+            case 2:
+                for (i = 0; i < 2; i++) {
+                    printf("�����ĵ�%d��һԪ����ʽ��\n", i+1);
+                    charu_1(head[i]);
+                }
+                break;
+            case 3: 
+                printf("��ʾ��1��������");
+                xianshi(head[0]);
+                printf("��ʾ��2��������");
+                xianshi(head[1]);
+                break;
+            case 4:  
+                printf("�����1�������ij��ȣ�");
+                Length(head[0]);
+                printf("�����2�������ij��ȣ�");
+                Length(head[1]);
+                break;
+            case 5:
+                printf("�жϵ�1�������Ƿ�Ϊ�գ�");
+                Emp(head[0]);
+                printf("�жϵ�2�������Ƿ�Ϊ�գ�");
+                Emp(head[1]);
+                break;   
+            case 6:
+                // ����ս������
+                clearList(head[2]);
+                hebiao(head[0], head[1], head[2]); 
+                break;
+            case 0:
+                printf("�����˳�����лʹ�ã�\n");
+                // �ͷ��ڴ�
+                for (i = 0; i < 3; i++) {
+                    clearList(head[i]);
+                    free(head[i]);
+                }
+                return 0;
+            default:
+                printf("����������������룡\n");
+                break;
+        }
+    }
+    return 0;
+}
diff --git a/datastructure/2025301205+施光甲+实验五.cpp b/datastructure/2025301205+施光甲+实验五.cpp
new file mode 100644
index 0000000..15af492
--- /dev/null
+++ b/datastructure/2025301205+施光甲+实验五.cpp
@@ -0,0 +1,114 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int nextval[20];
+
+int BF(char a[], char b[])
+{
+    int i = 1;
+    int j = 1;
+    while (i <= strlen(a) && j <= strlen(b))
+    {
+        //todo list �Ƚ�����a��b���Ӧλ�õ��ַ���
+        if (a[i - 1] == b[j - 1]) {
+            // ��ƥ��ɹ���������ȽϺ����ַ���
+            i++;
+            j++;
+        } else {
+            // ��ƥ�䲻�ɹ���iָ�롢jָ����ˣ����¿�ʼƥ��
+            i = i - j + 2;
+            j = 1;
+        }
+    }
+    
+    if (j > strlen(b))
+    {
+        printf("BF�㷨ƥ��ɹ�\n");
+        //todo list //���غ�ģʽb�е�һ���ַ���ȵ��ַ�������a�е����
+        return i - strlen(b);
+    }
+    else
+    {
+        printf("BF�㷨ƥ��ʧ��\n");
+        return 0;
+    }
+}
+
+void Nextval(char b[])
+{
+    nextval[1] = 0;
+    int i = 1, j = 0;
+    //todo list while ѭ����nextval
+    while (i < strlen(b)) {
+        if (j == 0 || b[i - 1] == b[j - 1]) {
+            i++;
+            j++;
+            if (b[i - 1] != b[j - 1]) {
+                nextval[i] = j;
+            } else {
+                nextval[i] = nextval[j];
+            }
+        } else {
+            j = nextval[j];
+        }
+    }
+}
+
+int KMP(char a[], char b[])
+{
+    int i = 1, j = 1, k;
+    Nextval(b); //��b���������ַ���nextvalֵ
+    for (k = 1; k <= strlen(b); k++)
+    {
+        printf("nextval[%d]��%4d\n", k, nextval[k]);
+    }
+    
+    while (i <= strlen(a) && j <= strlen(b))
+    {
+        //todo list �Ƚ�����a��b���Ӧλ�õ��ַ���
+        if (j == 0 || a[i - 1] == b[j - 1]) {
+            // ��ƥ��ɹ���������ȽϺ����ַ���
+            i++;
+            j++;
+        } else {
+            // ��ƥ�䲻�ɹ�������nextval[j]ʵ��jָ����ˣ����¿�ʼƥ��
+            j = nextval[j];
+        }
+    }
+    
+    if (j > strlen(b))
+    {
+        printf("KMP�㷨ƥ��ɹ���\n");
+        //todo list 
+        //���غ�ģʽb�е�һ���ַ���ȵ��ַ�������a�е����
+        return i - strlen(b);
+    }
+    else
+    {
+        printf("KMP�㷨ƥ��ʧ�ܣ�\n");
+        return 0;
+    }
+}
+
+int main()
+{
+    char a[100], b[20];
+    printf("����������:\n");
+    scanf("%s", a);
+    // gets_s(a);
+    printf("�������Ӵ�:\n");
+    scanf("%s", b);
+    // gets_s(b);
+    printf("----------------------------------------\n");
+    
+    int num_BF, num_KMP;
+    num_BF = BF(a, b);
+    printf("BF:�Ӵ��ĵ�һ���ַ��������е�λ��Ϊ��%d\n", num_BF);
+    printf("----------------------------------------\n");
+    
+    num_KMP = KMP(a, b);
+    printf("KMP:�Ӵ��ĵ�һ���ַ��������е�λ��Ϊ��%d", num_KMP);
+    
+    return 0;
+}
diff --git a/datastructure/2025301205+施光甲+实验六.cpp b/datastructure/2025301205+施光甲+实验六.cpp
new file mode 100644
index 0000000..9e7221c
--- /dev/null
+++ b/datastructure/2025301205+施光甲+实验六.cpp
@@ -0,0 +1,198 @@
+#include <stdio.h>
+#include <stdlib.h>
+#define OK 1
+typedef int Status;	
+typedef struct BiTNode
+{
+	char data;   //��������� 
+	struct BiTNode *lchild, *rchild;  //���Һ���ָ�� 
+}BiTNode,*BiTree;
+
+//1�����������������������������������н���ֵ����������������ʾ�Ķ�����T 
+// ���������α�P115ͼ5.10(b)�Ķ�����--�����ַ���˳��Ϊ��ABC##DE#G##F###(#��ʾ����) 
+BiTree Create(BiTree &T)
+{
+	char ch;
+	printf("������һ���ַ�:");
+	scanf("%c",&ch);
+	getchar();  //��ջ���������������\n��� 
+	//todo list   //if: ����������'#'������һ�ÿ���
+	//else�����򣬵ݹ齨��һ����������ע�⣺�ǰ���������򴴽��Ķ�������
+	if(ch == '#') {
+		T = NULL;  //��������
+	} else {
+		T = (BiTree)malloc(sizeof(BiTNode));  //�����½��
+		T->data = ch;
+		T->lchild = NULL;
+		T->rchild = NULL;
+		T->lchild = Create(T->lchild);  //�ݹ鴴��������
+		T->rchild = Create(T->rchild);  //�ݹ鴴��������
+	}
+	return T;
+}
+
+//�������������
+Status  PreOrder(BiTree &T)
+{
+	//todo list   //if: ����ǿ������򷵻�
+	//else:�����ȷ��ʸ���� (D)
+	//ǰ����������� (L)
+	//ǰ����������� (R)
+	if(T == NULL) {
+		return OK;
+	} else {
+		printf("%c ", T->data);  //���ʸ����
+		PreOrder(T->lchild);     //ǰ�����������
+		PreOrder(T->rchild);     //ǰ�����������
+	}
+	return OK;
+}
+
+//������������� 
+Status InOrder(BiTree &T)
+{
+	//todo list   //if: ����ǿ������򷵻�
+	//else:������������������� (L)
+	//���ʸ���� (D)
+	//������������� (R)
+	if(T == NULL) {
+		return OK;
+	} else {
+		InOrder(T->lchild);      //�������������
+		printf("%c ", T->data);  //���ʸ����
+		InOrder(T->rchild);      //�������������
+	}
+	return OK;
+}
+
+//�������
+Status PostOrder(BiTree &T)
+{
+	//todo list   //if: ����ǿ������򷵻�
+	//else:�����Ⱥ������������ (L)
+	//������������� (R)
+	//���ʸ���� (D)
+	if(T == NULL) {
+		return OK;
+	} else {
+		PostOrder(T->lchild);    //�������������
+		PostOrder(T->rchild);    //�������������
+		printf("%c ", T->data);  //���ʸ����
+	}
+	return OK;
+}
+
+//����1
+void LeverOrder(BiTree &T)
+{
+	if (T == NULL) {  // ���������������ָ�����
+        printf("������Ϊ�գ�\n");
+        return;
+    }
+	//BT *Queue[100]; //����
+	BiTree Queue[100]; //����
+	char ch;
+	int front = 0;
+	int rear = 0;
+	// ���б߽��飨��������ֹ����Խ�磩
+    if (rear >= 100) {
+        printf("�����������޷���ӣ�\n");
+        return;
+    }
+	Queue[rear++] = T; //���ڵ����
+	while (front < rear) //���Ӳ���
+	{
+		ch = Queue[front]->data; //���Ӷ�ͷԪ�� 
+		printf("%c ",ch);
+		if (Queue[front]->lchild){
+			if (rear >= 100) {
+            	printf("���������������޷���ӣ�\n");
+                break;
+            }
+			Queue[rear++] = Queue[front]->lchild;
+		}
+		if (Queue[front]->rchild){
+			if (rear >= 100) {
+	            printf("�����������Һ����޷���ӣ�\n");
+	            break;
+	        }
+			Queue[rear++] = Queue[front]->rchild;
+		}
+		front++;  // ��ͷ���ƣ���ɳ���
+	}
+	
+}
+
+//�ڵ�����
+int Count(BiTree &T)
+{
+	//todo list    //if������ǿ������������Ϊ0��
+	//else�����򣬽�����Ϊ�������Ľ�����+�������Ľ�������+1��
+	if(T == NULL) {
+		return 0;
+	} else {
+		return Count(T->lchild) + Count(T->rchild) + 1;
+	}
+}
+//Ҷ�ӽڵ�
+int CountLeaf(BiTree &T)
+{
+	//todo list    //if������ǿ�������Ҷ�ӽ�����Ϊ0��
+	//else if�������Ҷ�ӽ�㣬�򷵻�1��
+	//else����Ϊ��������Ҷ�ӽ�����+��������Ҷ�ӽ�������
+	if(T == NULL) {
+		return 0;
+	} else if(T->lchild == NULL && T->rchild == NULL) {
+		return 1;
+	} else {
+		return CountLeaf(T->lchild) + CountLeaf(T->rchild);
+	}
+}
+int main()
+{
+	BiTree T = NULL;   //����һ�ſ���
+	int choose = -1;
+	printf("*********************************************\n");
+	printf("**********           ʵ����           *******\n");
+	printf("*********************************************\n");
+	printf("**********     1.����һ�ö�����       *******\n");
+	printf("**********     2.�������������       *******\n");
+	printf("**********     3.�������������       *******\n");
+	printf("**********     4.�������������       *******\n");
+	printf("**********     5.�������������       *******\n");
+	printf("**********     6.��������ڵ����     *******\n");
+	printf("**********     7.�������Ҷ�ӽڵ���� *******\n");
+	printf("**********     0.�˳�                 *******\n");
+	printf("*********************************************\n");
+	while (choose)
+	{
+		printf("\n");
+		printf("���������ѡ���");
+		scanf("%d", &choose);
+		getchar(); //��ջ���������������\n��� 
+		switch (choose)
+		{
+		case 1:T = Create(T); break;  //����
+		printf("\n");
+		case 2:
+			printf("����������") ;
+			PreOrder(T); break;   //�������������
+			printf("\n");
+		case 3:
+			printf("����������") ;
+			InOrder(T); break;   //�������������
+			printf("\n");
+		case 4:
+			printf("����������") ;
+			PostOrder(T); break;  //�������������
+			printf("\n");
+		case 5:
+			printf("���������")	;		
+			LeverOrder(T); break;   //�������������
+			printf("\n");
+		case 6:printf("�ڵ�����Ϊ��%d\n", Count(T)); break;//�������
+		case 7:printf("Ҷ�ӽڵ�����Ϊ��%d\n", CountLeaf(T)); break; //Ҷ�ӽ������
+		case 0:exit(0); break;
+		}
+	}
+}
diff --git a/datastructure/2025301205+施光甲+实验四.cpp b/datastructure/2025301205+施光甲+实验四.cpp
new file mode 100644
index 0000000..f86001b
--- /dev/null
+++ b/datastructure/2025301205+施光甲+实验四.cpp
@@ -0,0 +1,153 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MAXSIZE 100
+
+typedef struct Stack
+{
+    char *base; //ջ��ָ��
+    char *top; //ջ��ָ��
+    int stacksize; //ջ���õ��������
+    int length; //�����������ж�ջ�Ƿ�Ϊ��
+}Stack;
+
+//��ʼ��
+void InitStack(Stack &p)
+{
+    p.base = new char[MAXSIZE]; //����ռ�
+    //todo list ���� ջ��ָ��top��ʼΪbase
+    p.top = p.base;
+    //todo list ����stacksize��length
+    p.stacksize = MAXSIZE;
+    p.length = 0;
+}
+
+#define OK 1
+#define ERROR 0
+typedef int Status;
+
+//��ջ
+Status Push(Stack &p, char e)
+{
+    if(p.top - p.base == p.stacksize) // ջ��
+        return ERROR;
+    //todo list //��Ԫ��eѹ��ջ��
+    *p.top = e;
+    //todo list //ջ��ָ���1
+    p.top++;
+    p.length++;
+    return OK;
+}
+
+//��ջ
+char Pop(Stack &p)
+{
+    char e;
+    if(p.top == p.base) // ջ��
+        return '\0';
+    //todo list //ջ��ָ���1
+    p.top--;
+    //todo list //ȡջ��Ԫ��
+    e = *p.top;
+    p.length--;
+    return e;
+}
+
+//1���ж��Ƿ�Ϊ���Ĵ�
+void Palindrome(Stack &S, char a[])
+{
+    int i;
+    //ջ���
+    S.top = S.base;
+    S.length = 0;
+    for (i = 0; a[i] != '\0'; i++){
+        //todo list //forѭ�� ���ַ���ȫ����ջPush()
+        Push(S, a[i]);
+    }
+    for (i = 0; a[i] != '\0'; i++){
+        //todo list //forѭ�� �Աȴ�������Ԫ�أ����Pop(S) != a[i]��������ǻ���,�˳�
+        if(Pop(S) != a[i]){
+            printf("----���ǻ���----\n");
+            return;
+        }
+    }
+    if (i == strlen(a))
+    {
+        printf("------����------\n");
+    }
+    else
+    {
+        printf("----���ǻ���----\n");
+    }
+}
+
+//2������ƥ�����------�ɲο��α�P75
+//ֻ������Բ����()��������[]��ɵ�����
+void Matching(Stack &S, char ch[])
+{
+    int flag = 1; //flag��ʼΪ1���� flag = 1ʱ��ʾƥ��ɹ�
+    int i=0;
+    //ջ���
+    S.top = S.base;
+    S.length = 0;
+    //todo list //while������ƥ����飺
+    while(ch[i] != '\0' && flag){
+        //��Ϊ�����ţ�������ջ��
+        if(ch[i] == '(' || ch[i] == '['){
+            Push(S, ch[i]);
+        }
+        //��Ϊ�����ţ������ջ��ջ��Ԫ�ؽ��бȽϣ������Ƿ��ܹ���ԣ������ƥ�䣬ע�⽫flag��Ϊ0 ����
+        else if(ch[i] == ')' || ch[i] == ']'){
+            if(S.length == 0){
+                flag = 0;
+            }
+            else{
+                char left = Pop(S);
+                if((ch[i] == ')' && left != '(') || (ch[i] == ']' && left != '[')){
+                    flag = 0;
+                }
+            }
+        }
+        i++;
+    }
+    if(S.length == 0 && flag ) //ջ����flag = 1ʱ������ƥ��
+        printf("-----����ƥ��-----\n");
+    else
+        printf("----���Ų�ƥ��----\n");
+}
+
+int main()
+{
+    char a[20], b[20];
+    Stack s;
+    InitStack(s);
+    int choose = -1;
+    printf("------------------------------\n");
+    printf("1.�ж��Ƿ��ǻ����ַ���\n");
+    printf("2.�ж������Ƿ�ƥ��\n");
+    printf("0.�˳�\n");
+    printf("------------------------------\n");
+    while(choose)
+    {
+        printf("������ѡ��:");
+        scanf("%d", &choose);
+        switch(choose)
+        {
+            case 1:
+                printf("������һ���ַ�����");
+                scanf("%s",a);
+                Palindrome(s, a);
+                break;
+            case 2:
+                printf("������һ���ַ���(��Բ���ź����������)��");
+                scanf("%s",b);
+                Matching(s, b);
+                break;
+            case 0:
+                exit(0);
+                break;
+        }
+    }
+    return 0;
+}
diff --git a/nodejs/nodeExperiment1/server.js b/nodejs/nodeExperiment1/server.js
new file mode 100644
index 0000000..1d8b227
--- /dev/null
+++ b/nodejs/nodeExperiment1/server.js
@@ -0,0 +1,122 @@
+const os = require('os');
+const http = require('http');
+
+// 获取系统信息
+const getSystemInfo = () => {
+    try {
+        const totalMem = (os.totalmem() / (1024 ** 3)).toFixed(2) + ' GB';
+        const freeMem = (os.freemem() / (1024 ** 3)).toFixed(2) + ' GB';
+        const usedMem = ((os.totalmem() - os.freemem()) / (1024 ** 3)).toFixed(2) + ' GB';
+        const memUsage = (((os.totalmem() - os.freemem()) / os.totalmem()) * 100).toFixed(2) + '%';
+
+        const cpus = os.cpus();
+        const cpuModel = cpus[0]?.model || 'Unknown';
+        const cpuCores = cpus.length;
+
+
+return {
+    hostname: os.hostname(),
+    platform: os.platform(),
+    arch: os.arch(),
+    uptime: (os.uptime() / 3600).toFixed(2) + ' hours',
+
+    // 内存信息：使用前面计算好的变量
+    totalMem,        // 总内存大小
+    usedMem,         // 已使用内存
+    freeMem,         // 空闲内存
+    memUsage,        // 内存使用率
+    // CPU信息：使用前面计算好的变量
+    
+    cpuModel,        // CPU型号
+    cpuCores         // CPU核心数
+};
+    } catch (error) {
+        console.error('获取系统信息失败:', error.message);
+        return {};
+    }
+};
+
+// 创建HTTP服务器
+const server = http.createServer((req, res) => {
+    if (req.url === '/') {
+        const systemInfo = getSystemInfo();
+        const html = `
+<!DOCTYPE html>
+<html>
+<head>
+    <title>系统信息监控</title>
+    <style>
+        body { 
+            font-family: Arial, sans-serif; 
+            margin: 40px; 
+            background: #f5f5f5;
+        }
+        .container { 
+            max-width: 800px; 
+            margin: 0 auto; 
+            background: white; 
+            padding: 20px; 
+            border-radius: 10px;
+            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+        }
+        h1 { 
+            color: #333; 
+            text-align: center;
+            border-bottom: 2px solid #eee;
+            padding-bottom: 10px;
+        }
+        .info-item { 
+            margin: 15px 0; 
+            padding: 10px;
+            background: #f9f9f9;
+            border-radius: 5px;
+        }
+        .label { 
+            font-weight: bold; 
+            color: #555;
+        }
+        .memory { border-left: 4px solid #4CAF50; }
+        .cpu { border-left: 4px solid #2196F3; }
+        .system { border-left: 4px solid #FF9800; }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>🖥️ 系统信息监控</h1>
+        
+        <div class="info-item system">
+            <span class="label">主机名:</span> ${systemInfo.hostname || 'N/A'}<br>
+            <span class="label">平台:</span> ${systemInfo.platform || 'N/A'}<br>
+            <span class="label">架构:</span> ${systemInfo.arch || 'N/A'}<br>
+            <span class="label">运行时间:</span> ${systemInfo.uptime || 'N/A'}
+        </div>
+
+        <div class="info-item memory">
+            <span class="label">总内存:</span> ${systemInfo.totalMem || 'N/A'}<br>
+            <span class="label">已用内存:</span> ${systemInfo.usedMem || 'N/A'}<br>
+            <span class="label">空闲内存:</span> ${systemInfo.freeMem || 'N/A'}<br>
+            <span class="label">内存使用率:</span> ${systemInfo.memUsage || 'N/A'}
+        </div>
+
+        <div class="info-item cpu">
+            <span class="label">CPU型号:</span> ${systemInfo.cpuModel || 'N/A'}<br>
+            <span class="label">CPU核心数:</span> ${systemInfo.cpuCores || 'N/A'}
+        </div>
+    </div>
+</body>
+</html>
+        `;
+
+        res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
+        res.end(html);
+    } else {
+        res.writeHead(404, { 'Content-Type': 'text/plain' });
+        res.end('页面未找到');
+    }
+});
+
+// 启动服务器
+const PORT = 3000;
+server.listen(PORT, () => {
+    console.log(`🚀 服务器运行在 http://localhost:${PORT}`);
+});
\ No newline at end of file
diff --git a/nodejs/nodeExperiment2/.gitignore b/nodejs/nodeExperiment2/.gitignore
new file mode 100644
index 0000000..a3f7a51
--- /dev/null
+++ b/nodejs/nodeExperiment2/.gitignore
@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+coverage
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+*.tsbuildinfo
+
+.eslintcache
+
+# Cypress
+/cypress/videos/
+/cypress/screenshots/
+
+# Vitest
+__screenshots__/
diff --git a/nodejs/nodeExperiment2/array_practice.js b/nodejs/nodeExperiment2/array_practice.js
new file mode 100644
index 0000000..a498dd9
--- /dev/null
+++ b/nodejs/nodeExperiment2/array_practice.js
@@ -0,0 +1,51 @@
+const numbers = [15, 8, 23, 4, 42, 16, 7];
+const students = [
+    { name: '张三', score: 85 },
+    { name: '李四', score: 62 },
+    { name: '王五', score: 91 }
+];
+
+console.log('1. slice() - 数组切片');
+const sliced = numbers.slice(1, 4);
+console.log('numbers.slice(1, 4):', sliced);
+
+console.log('\n2. filter() - 筛选元素');
+const evenNumbers = numbers.filter(numbers => numbers % 3 == 0);
+console.log('偶数:', evenNumbers);
+
+console.log('\n3. find() - 查找元素');
+const findScore = students.find(student => student.score > 90);
+console.log('分数>90的学生:', findScore);
+
+console.log('\n4. findIndex() - 查找索引');
+const index = numbers.findIndex(numbers => numbers > 20);
+console.log('第一个>20的数的索引:', index);
+
+console.log('\n5. every() - 所有元素满足条件');
+
+const allPassed = students.every(student => student.score >= 60);
+console.log('所有学生都及格:', allPassed);
+
+
+console.log('\n6. some() - 至少一个满足条件');
+const hasHighScore = students.some(student => student.score > 90);
+console.log('有高分学生:', hasHighScore);
+
+console.log('\n7. unshift() - 开头添加');
+const arr = [2, 3];
+arr.unshift(1);
+console.log('添加后:', arr);
+
+console.log('\n8. splice() - 添加删除');
+const colors = ['red', 'green', 'blue'];
+colors.splice(1, 1, 'yellow');
+console.log('替换后:', colors);
+
+console.log('\n9. sort() - 排序');
+const sortedAsc = [...numbers].sort((a, b) => a - b);
+const sortedDesc = [...numbers].sort((a, b) => b - a);
+console.log('升序:', sortedAsc, '降序:', sortedDesc);
+
+console.log('\n10. reduce() - 累加');
+const sum = numbers.reduce((total, num) => total + num, 0);
+console.log('数组求和:', sum);
diff --git a/nodejs/nodeExperiment2/index.js b/nodejs/nodeExperiment2/index.js
new file mode 100644
index 0000000..c273626
--- /dev/null
+++ b/nodejs/nodeExperiment2/index.js
@@ -0,0 +1,6 @@
+// index.js
+const myModule = require('./myModule');
+
+console.log(`Author: ${myModule.author}`);
+console.log(myModule.greet('Alice'));
+console.log(`Sum: ${myModule.add(5, 3)}`);
\ No newline at end of file
diff --git a/nodejs/nodeExperiment2/index2.js b/nodejs/nodeExperiment2/index2.js
new file mode 100644
index 0000000..21b6b33
--- /dev/null
+++ b/nodejs/nodeExperiment2/index2.js
@@ -0,0 +1,14 @@
+const lodash =require('lodash')
+
+
+const arry =[1,2,3,4,5]
+
+const result = lodash.reverse(arry.slice(arry))
+console.log('Reversed arry:',result);
+
+const result2 = lodash.filter(arry, (num)=> {
+    return num >= 3;
+  });
+
+  console.log(result2);
+
diff --git a/nodejs/nodeExperiment2/myModule.js b/nodejs/nodeExperiment2/myModule.js
new file mode 100644
index 0000000..44290e3
--- /dev/null
+++ b/nodejs/nodeExperiment2/myModule.js
@@ -0,0 +1,18 @@
+// 属性
+const author = "harry";
+
+// 方法
+function greet(name) {
+    return `Hello, ${name}`;
+}
+
+function add(a, b) {
+    return a + b;
+}
+
+// 共享属性 author 和 greet()、add()方法
+module.exports = {
+    author,
+    greet,
+    add
+};
\ No newline at end of file
diff --git a/nodejs/nodeExperiment2/package-lock.json b/nodejs/nodeExperiment2/package-lock.json
new file mode 100644
index 0000000..dc20cce
--- /dev/null
+++ b/nodejs/nodeExperiment2/package-lock.json
@@ -0,0 +1,18 @@
+{
+  "name": "nodeExpriment2",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "lodash": "^4.17.21"
+      }
+    },
+    "node_modules/lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
+      "license": "MIT"
+    }
+  }
+}
diff --git a/nodejs/nodeExperiment2/package.json b/nodejs/nodeExperiment2/package.json
new file mode 100644
index 0000000..cd574b2
--- /dev/null
+++ b/nodejs/nodeExperiment2/package.json
@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "lodash": "^4.17.21"
+  }
+}
diff --git a/nodejs/nodeExperiment3/.gitignore b/nodejs/nodeExperiment3/.gitignore
new file mode 100644
index 0000000..a3f7a51
--- /dev/null
+++ b/nodejs/nodeExperiment3/.gitignore
@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+coverage
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+*.tsbuildinfo
+
+.eslintcache
+
+# Cypress
+/cypress/videos/
+/cypress/screenshots/
+
+# Vitest
+__screenshots__/
diff --git a/nodejs/nodeExperiment3/index.js b/nodejs/nodeExperiment3/index.js
new file mode 100644
index 0000000..a256dd1
--- /dev/null
+++ b/nodejs/nodeExperiment3/index.js
@@ -0,0 +1,9 @@
+const express = require("express");
+const app = express();
+const userRouter = require("./router/userRouter.js");
+
+app.use(userRouter);
+
+app.listen(8080, () => {
+    console.log("启动成功，访问地址为：http://localhost:8080/");
+});
\ No newline at end of file
diff --git a/nodejs/nodeExperiment3/package-lock.json b/nodejs/nodeExperiment3/package-lock.json
new file mode 100644
index 0000000..e7490db
--- /dev/null
+++ b/nodejs/nodeExperiment3/package-lock.json
@@ -0,0 +1,915 @@
+{
+  "name": "nodeexperiment3",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "nodeexperiment3",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "express": "^5.1.0",
+        "joi": "^18.0.1"
+      }
+    },
+    "node_modules/@hapi/address": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmmirror.com/@hapi/address/-/address-5.1.1.tgz",
+      "integrity": "sha512-A+po2d/dVoY7cYajycYI43ZbYMXukuopIsqCjh5QzsBCipDtdofHntljDlpccMjIfTy6UOkg+5KPriwYch2bXA==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@hapi/hoek": "^11.0.2"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/@hapi/formula": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmmirror.com/@hapi/formula/-/formula-3.0.2.tgz",
+      "integrity": "sha512-hY5YPNXzw1He7s0iqkRQi+uMGh383CGdyyIGYtB+W5N3KHPXoqychklvHhKCC9M3Xtv0OCs/IHw+r4dcHtBYWw==",
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/@hapi/hoek": {
+      "version": "11.0.7",
+      "resolved": "https://registry.npmmirror.com/@hapi/hoek/-/hoek-11.0.7.tgz",
+      "integrity": "sha512-HV5undWkKzcB4RZUusqOpcgxOaq6VOAH7zhhIr2g3G8NF/MlFO75SjOr2NfuSx0Mh40+1FqCkagKLJRykUWoFQ==",
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/@hapi/pinpoint": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/@hapi/pinpoint/-/pinpoint-2.0.1.tgz",
+      "integrity": "sha512-EKQmr16tM8s16vTT3cA5L0kZZcTMU5DUOZTuvpnY738m+jyP3JIUj+Mm1xc1rsLkGBQ/gVnfKYPwOmPg1tUR4Q==",
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/@hapi/tlds": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmmirror.com/@hapi/tlds/-/tlds-1.1.4.tgz",
+      "integrity": "sha512-Fq+20dxsxLaUn5jSSWrdtSRcIUba2JquuorF9UW1wIJS5cSUwxIsO2GIhaWynPRflvxSzFN+gxKte2HEW1OuoA==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/@hapi/topo": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmmirror.com/@hapi/topo/-/topo-6.0.2.tgz",
+      "integrity": "sha512-KR3rD5inZbGMrHmgPxsJ9dbi6zEK+C3ZwUwTa+eMwWLz7oijWUTWD2pMSNNYJAU6Qq+65NkxXjqHr/7LM2Xkqg==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@hapi/hoek": "^11.0.2"
+      }
+    },
+    "node_modules/@standard-schema/spec": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/@standard-schema/spec/-/spec-1.0.0.tgz",
+      "integrity": "sha512-m2bOd0f2RT9k8QJx1JN85cZYyH1RqFBdlwtkSlf4tBDYLCiiZnv1fIIwacK6cqwXavOydf0NPToMQgpKq+dVlA==",
+      "license": "MIT"
+    },
+    "node_modules/accepts": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/accepts/-/accepts-2.0.0.tgz",
+      "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/body-parser/-/body-parser-2.2.0.tgz",
+      "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.0",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.6.3",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.0",
+        "raw-body": "^3.0.0",
+        "type-is": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmmirror.com/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmmirror.com/call-bound/-/call-bound-1.0.4.tgz",
+      "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "get-intrinsic": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/content-disposition/-/content-disposition-1.0.0.tgz",
+      "integrity": "sha512-Au9nRL8VNUut/XSzbQA38+M78dzP4D+eqg3gfJHMIHHYa3bg067xj1KxMUWj+VULbiZMowKngFFbKczUrNJ1mg==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmmirror.com/content-type/-/content-type-1.0.5.tgz",
+      "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmmirror.com/cookie/-/cookie-0.7.2.tgz",
+      "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmmirror.com/cookie-signature/-/cookie-signature-1.2.2.tgz",
+      "integrity": "sha512-D76uU73ulSXrD1UXF4KE2TMxVVwhsnCgfAyTg9k8P6KGZjlXKrOLe4dJQKI3Bxi5wjesZoFXJWElNWBjPZMbhg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.6.0"
+      }
+    },
+    "node_modules/debug": {
+      "version": "4.4.3",
+      "resolved": "https://registry.npmmirror.com/debug/-/debug-4.4.3.tgz",
+      "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/depd": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/depd/-/depd-2.0.0.tgz",
+      "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/dunder-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/dunder-proto/-/dunder-proto-1.0.1.tgz",
+      "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmmirror.com/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
+      "license": "MIT"
+    },
+    "node_modules/encodeurl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/encodeurl/-/encodeurl-2.0.0.tgz",
+      "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/es-define-property": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/es-define-property/-/es-define-property-1.0.1.tgz",
+      "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-errors": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmmirror.com/es-errors/-/es-errors-1.3.0.tgz",
+      "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmmirror.com/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+      "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/escape-html": {
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+      "integrity": "sha512-nLTrUKm2UyiL7rlhapu/Zl45FwNgkZGaCpZbIHajDYgwlJCOzLSk+cIPAnsEqV955GjILJnKbdQC1nVPz+gAYQ==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.4.0",
+        "depd": "^2.0.0",
+        "is-promise": "^4.0.0",
+        "parseurl": "^1.3.3",
+        "path-to-regexp": "^8.0.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmmirror.com/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmmirror.com/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+      "license": "MIT"
+    },
+    "node_modules/send": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/send/-/send-1.2.0.tgz",
+      "integrity": "sha512-uaW0WwXKpL9blXE2o0bRhoL2EGXIrZxQ2ZQ4mgcfoBxdFmQold+qWsD2jLrfZ0trjKL6vOw0j//eAwcALFjKSw==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.3.5",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
+        "mime-types": "^3.0.1",
+        "ms": "^2.1.3",
+        "on-finished": "^2.4.1",
+        "range-parser": "^1.2.1",
+        "statuses": "^2.0.1"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/serve-static": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/serve-static/-/serve-static-2.2.0.tgz",
+      "integrity": "sha512-61g9pCh0Vnh7IutZjtLGGpTA355+OPn2TyDv/6ivP2h/AdAVX9azsoxmg2/M6nZeQZNYBEwIcsne1mJd9oQItQ==",
+      "license": "MIT",
+      "dependencies": {
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "parseurl": "^1.3.3",
+        "send": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+      "license": "ISC"
+    },
+    "node_modules/side-channel": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmmirror.com/side-channel/-/side-channel-1.1.0.tgz",
+      "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3",
+        "side-channel-list": "^1.0.0",
+        "side-channel-map": "^1.0.1",
+        "side-channel-weakmap": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-list": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/side-channel-list/-/side-channel-list-1.0.0.tgz",
+      "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/side-channel-map/-/side-channel-map-1.0.1.tgz",
+      "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+      "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmmirror.com/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
diff --git a/nodejs/nodeExperiment3/package.json b/nodejs/nodeExperiment3/package.json
new file mode 100644
index 0000000..3205f72
--- /dev/null
+++ b/nodejs/nodeExperiment3/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "nodeexperiment3",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^5.1.0",
+    "joi": "^18.0.1"
+  }
+}
diff --git a/nodejs/nodeExperiment3/router/userRouter.js b/nodejs/nodeExperiment3/router/userRouter.js
new file mode 100644
index 0000000..6e6e24a
--- /dev/null
+++ b/nodejs/nodeExperiment3/router/userRouter.js
@@ -0,0 +1,90 @@
+const express = require("express");
+const joi = require("joi");
+const router = express.Router();
+
+
+router.get('/userId/:userId', (req, res) => {
+    const userId = req.params.userId;
+    const { error } = joi.number().validate(userId);
+    if (error) {
+        return res.status(400).send('Invalid userID');
+    }
+    res.send(`User Id is ${userId}`);
+});
+
+router.get('/userName', (req, res) => {
+    const { name } = req.query;
+    const schema = joi.object({
+        name: joi.string().min(2).max(20).required()
+    });
+    const { error } = schema.validate({ name });
+    if (error) {
+        return res.status(400).send('Invalid user name');
+    }
+    res.send(`User name is ${name}`);
+});
+
+
+router.get('/profile', (req, res) => {
+    res.send('This is the user profile page.');
+});
+
+router.get('/profile/settings', (req, res) => {
+    res.send('This is the user profile settings page.');
+});
+
+
+const scores = [
+    { name: 'zs', course: 'app', score: 90 },
+    { name: 'zs', course: 'java', score: 80 },
+    { name: 'ls', course: 'app', score: 89 },
+    { name: 'ls', course: 'java', score: 99 },
+    { name: 'ww', course: 'app', score: 78 },
+    { name: 'ww', course: 'java', score: 88 },
+];
+
+router.get('/myScore', (req, res) => {
+    const name = req.query.name;
+    const result = scores.filter(s => s.name === name);
+    res.json({ name, scores: result });
+});
+
+router.get('/showScore', (req, res) => {
+    const sorted = [...scores].sort((a, b) => a.score - b.score);
+    const avg = {};
+    scores.forEach(s => {
+        avg[s.name] = (avg[s.name] || { total: 0, count: 0 });
+        avg[s.name].total += s.score;
+        avg[s.name].count++;
+    });
+    const avgResult = Object.entries(avg).map(([name, data]) => ({
+        name,
+        average: data.total / data.count
+    }));
+    res.json({ "升序排列": sorted, "平均分": avgResult });
+});
+
+const moneys = [
+    { name: '张三', mny: '9k' },
+    { name: '李四', mny: 15000 },
+    { name: '王五', mny: '1w' },
+    { name: '随便', mny: 6666 }
+];
+
+
+router.get('/filterMoney', (req, res) => {
+    const parse = (mny) => {
+        if (typeof mny === 'number') return mny;
+        if (mny.endsWith('k')) return parseFloat(mny) * 1000;
+        if (mny.endsWith('w')) return parseFloat(mny) * 10000;
+        return 0;
+    };
+
+    const result = moneys
+        .map(item => ({ ...item, num: parse(item.mny) }))
+        .filter(item => item.num >= 9000)
+        .sort((a, b) => b.num - a.num);
+    res.json(result);
+});
+
+module.exports = router;
\ No newline at end of file
diff --git a/nodejs/nodeExperiment4/.gitignore b/nodejs/nodeExperiment4/.gitignore
new file mode 100644
index 0000000..a3f7a51
--- /dev/null
+++ b/nodejs/nodeExperiment4/.gitignore
@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+coverage
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+*.tsbuildinfo
+
+.eslintcache
+
+# Cypress
+/cypress/videos/
+/cypress/screenshots/
+
+# Vitest
+__screenshots__/
diff --git a/nodejs/nodeExperiment4/app.js b/nodejs/nodeExperiment4/app.js
new file mode 100644
index 0000000..fd8b438
--- /dev/null
+++ b/nodejs/nodeExperiment4/app.js
@@ -0,0 +1,47 @@
+const express = require('express');
+const Bodyparser = require('body-parser');
+const cors = require('cors');
+// const jsonp = require('express-jsonp');
+const app = express();
+
+
+const corsOptions = {
+    origin: 'http://localhost',
+    methods: ['GET', 'POST'],
+    allowedHeaders: ['Content-Type', 'Authorization','jsonp']
+};
+
+app.use(Bodyparser.urlencoded({ extended: true }));
+app.use(Bodyparser.json());
+app.use(cors(corsOptions));
+// app.use(jsonp());
+
+
+app.get('/api/data', (req, res) => {
+    const data = [
+        { id: 1, name: "张三", age: 20, gender: "男" },
+        { id: 2, name: "李四", age: 22, gender: "女" }
+    ];
+    res.send(data);
+});
+
+
+app.post('/api/data', (req, res) => {
+    const newData = req.body;
+    console.log("Recevied new data: ", newData);
+    res.status(201).json({ msg: '已添加', data: newData });
+})
+
+
+app.get('/api/jsonp', (req, res) => {
+    const data = [
+        { id: 1, name: "张三", age: 20, gender: "男" },
+        { id: 2, name: "李四", age: 22, gender: "女" },
+    ];
+    res.jsonp(data);
+})
+
+const port = 3000;
+app.listen(port, () => {
+    console.log(`服务器启动成功，端口号为${port}`);
+})
\ No newline at end of file
diff --git a/nodejs/nodeExperiment4/jsonp.html b/nodejs/nodeExperiment4/jsonp.html
new file mode 100644
index 0000000..51d4cf5
--- /dev/null
+++ b/nodejs/nodeExperiment4/jsonp.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>JSONP Test</title>
+</head>
+
+<body>
+    <script>
+        function handleResponse(data) {
+            console.log(data);
+        }
+    </script>
+    <script src="http://localhost:3000/api/jsonp?callback=handleResponse"></script>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/nodejs/nodeExperiment4/package-lock.json b/nodejs/nodeExperiment4/package-lock.json
new file mode 100644
index 0000000..bc8e630
--- /dev/null
+++ b/nodejs/nodeExperiment4/package-lock.json
@@ -0,0 +1,875 @@
+{
+  "name": "nodeexperiment4",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "nodeexperiment4",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "body-parser": "^2.2.0",
+        "cors": "^2.8.5",
+        "express": "^5.1.0",
+        "express-jsonp": "^0.1.0"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/accepts/-/accepts-2.0.0.tgz",
+      "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/body-parser/-/body-parser-2.2.0.tgz",
+      "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.0",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.6.3",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.0",
+        "raw-body": "^3.0.0",
+        "type-is": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmmirror.com/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmmirror.com/call-bound/-/call-bound-1.0.4.tgz",
+      "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "get-intrinsic": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/content-disposition/-/content-disposition-1.0.0.tgz",
+      "integrity": "sha512-Au9nRL8VNUut/XSzbQA38+M78dzP4D+eqg3gfJHMIHHYa3bg067xj1KxMUWj+VULbiZMowKngFFbKczUrNJ1mg==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
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+      "resolved": "https://registry.npmmirror.com/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/object-inspect": {
+      "version": "1.13.4",
+      "resolved": "https://registry.npmmirror.com/object-inspect/-/object-inspect-1.13.4.tgz",
+      "integrity": "sha512-W67iLl4J2EXEGTbfeHCffrjDfitvLANg0UlX3wFUUSTx92KXRFegMHUVgSqE+wvhAbi4WqjGg9czysTV2Epbew==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/on-finished": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmmirror.com/on-finished/-/on-finished-2.4.1.tgz",
+      "integrity": "sha512-oVlzkg3ENAhCk2zdv7IJwd/QUD4z2RxRwpkcGY8psCVcCYZNq4wYnVWALHM+brtuJjePWiYF/ClmuDr8Ch5+kg==",
+      "license": "MIT",
+      "dependencies": {
+        "ee-first": "1.1.1"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmmirror.com/once/-/once-1.4.0.tgz",
+      "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
+      "license": "ISC",
+      "dependencies": {
+        "wrappy": "1"
+      }
+    },
+    "node_modules/parseurl": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmmirror.com/parseurl/-/parseurl-1.3.3.tgz",
+      "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/path-to-regexp": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmmirror.com/path-to-regexp/-/path-to-regexp-8.3.0.tgz",
+      "integrity": "sha512-7jdwVIRtsP8MYpdXSwOS0YdD0Du+qOoF/AEPIt88PcCFrZCzx41oxku1jD88hZBwbNUIEfpqvuhjFaMAqMTWnA==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/proxy-addr": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmmirror.com/proxy-addr/-/proxy-addr-2.0.7.tgz",
+      "integrity": "sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==",
+      "license": "MIT",
+      "dependencies": {
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/qs": {
+      "version": "6.14.0",
+      "resolved": "https://registry.npmmirror.com/qs/-/qs-6.14.0.tgz",
+      "integrity": "sha512-YWWTjgABSKcvs/nWBi9PycY/JiPJqOD4JA6o9Sej2AtvSGarXxKC3OQSk4pAarbdQlKAh5D4FCQkJNkW+GAn3w==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "side-channel": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/range-parser": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmmirror.com/range-parser/-/range-parser-1.2.1.tgz",
+      "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/raw-body": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmmirror.com/raw-body/-/raw-body-3.0.1.tgz",
+      "integrity": "sha512-9G8cA+tuMS75+6G/TzW8OtLzmBDMo8p1JRxN5AZ+LAp8uxGA8V8GZm4GQ4/N5QNQEnLmg6SS7wyuSmbKepiKqA==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.7.0",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/raw-body/node_modules/iconv-lite": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmmirror.com/iconv-lite/-/iconv-lite-0.7.0.tgz",
+      "integrity": "sha512-cf6L2Ds3h57VVmkZe+Pn+5APsT7FpqJtEhhieDCvrE2MK5Qk9MyffgQyuxQTm6BChfeZNtcOLHp9IcWRVcIcBQ==",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/router": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/router/-/router-2.2.0.tgz",
+      "integrity": "sha512-nLTrUKm2UyiL7rlhapu/Zl45FwNgkZGaCpZbIHajDYgwlJCOzLSk+cIPAnsEqV955GjILJnKbdQC1nVPz+gAYQ==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.4.0",
+        "depd": "^2.0.0",
+        "is-promise": "^4.0.0",
+        "parseurl": "^1.3.3",
+        "path-to-regexp": "^8.0.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmmirror.com/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmmirror.com/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+      "license": "MIT"
+    },
+    "node_modules/send": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/send/-/send-1.2.0.tgz",
+      "integrity": "sha512-uaW0WwXKpL9blXE2o0bRhoL2EGXIrZxQ2ZQ4mgcfoBxdFmQold+qWsD2jLrfZ0trjKL6vOw0j//eAwcALFjKSw==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.3.5",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
+        "mime-types": "^3.0.1",
+        "ms": "^2.1.3",
+        "on-finished": "^2.4.1",
+        "range-parser": "^1.2.1",
+        "statuses": "^2.0.1"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/serve-static": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/serve-static/-/serve-static-2.2.0.tgz",
+      "integrity": "sha512-61g9pCh0Vnh7IutZjtLGGpTA355+OPn2TyDv/6ivP2h/AdAVX9azsoxmg2/M6nZeQZNYBEwIcsne1mJd9oQItQ==",
+      "license": "MIT",
+      "dependencies": {
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "parseurl": "^1.3.3",
+        "send": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+      "license": "ISC"
+    },
+    "node_modules/side-channel": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmmirror.com/side-channel/-/side-channel-1.1.0.tgz",
+      "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3",
+        "side-channel-list": "^1.0.0",
+        "side-channel-map": "^1.0.1",
+        "side-channel-weakmap": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-list": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/side-channel-list/-/side-channel-list-1.0.0.tgz",
+      "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/side-channel-map/-/side-channel-map-1.0.1.tgz",
+      "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+      "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmmirror.com/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
diff --git a/nodejs/nodeExperiment4/package.json b/nodejs/nodeExperiment4/package.json
new file mode 100644
index 0000000..c0caa31
--- /dev/null
+++ b/nodejs/nodeExperiment4/package.json
@@ -0,0 +1,18 @@
+{
+  "name": "nodeexperiment4",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^2.2.0",
+    "cors": "^2.8.5",
+    "express": "^5.1.0",
+    "express-jsonp": "^0.1.0"
+  }
+}
diff --git a/nodejs/nodeExperiment5/.gitignore b/nodejs/nodeExperiment5/.gitignore
new file mode 100644
index 0000000..a3f7a51
--- /dev/null
+++ b/nodejs/nodeExperiment5/.gitignore
@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+coverage
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+*.tsbuildinfo
+
+.eslintcache
+
+# Cypress
+/cypress/videos/
+/cypress/screenshots/
+
+# Vitest
+__screenshots__/
diff --git a/nodejs/nodeExperiment5/index.js b/nodejs/nodeExperiment5/index.js
new file mode 100644
index 0000000..1918223
--- /dev/null
+++ b/nodejs/nodeExperiment5/index.js
@@ -0,0 +1,141 @@
+// index.js
+const express = require('express');
+const mysql = require('mysql2');
+const app = express();
+const port = 3000;
+const cors = require('cors');
+
+// 创建 MySQL 数据库连接
+const db = mysql.createConnection({
+    host: 'localhost',
+    user: 'root',
+    password: '123456',
+    database: 'express_db'
+});
+
+// 连接到 MySQL 数据库
+db.connect((err) => {
+    if (err) {
+        console.error('Error connecting to MySQL database:', err);
+        return;
+    }
+    console.log('Connected to MySQL database');
+});
+
+// 设置 Express 应用的 JSON 和urlencoded中间件
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+app.use(cors());
+
+app.set('view engine', 'ejs');
+app.set('views', './public');
+
+
+app.get('/register-page', (req, res) => {
+    res.render('register');
+})
+
+// 处理表单提交的路由
+app.post('/register', (req, res) => {
+    const { username, password, email, gender, hobbies, city, description } = req.body;
+
+    let hobbiesStr = '';
+    if (Array.isArray(hobbies)) {
+        hobbiesStr = hobbies.join(',');
+    } else if (hobbies) {
+        hobbiesStr = hobbies;
+    }
+
+    // 构建插入数据的 SQL 语句
+    const sql = 'INSERT INTO users (username, password, email, gender, hobbies, city, description) VALUES (?, ?, ?, ?, ?, ?, ?)';
+    const values = [username, password, email, gender, hobbiesStr, city, description];
+
+    // 执行 SQL 语句
+    db.query(sql, values, (err, result) => {
+        if (err) {
+            console.error('Error inserting data into MySQL database:', err);
+            res.status(500).send('Error inserting data into MySQL database');
+            return;
+        }
+        console.log('Data inserted successfully');
+        res.send('Registration successful');
+    });
+});
+
+
+app.get('/login-page', (req, res) => {
+    res.render('login');
+});
+
+// 处理登录表单提交
+app.post('/login', (req, res) => {
+    const { username, password } = req.body;
+
+    // 构建查询用户的 SQL 语句
+    const sql = 'SELECT * FROM users WHERE username = ? AND password = ?';
+    const values = [username, password];
+
+    // 执行 SQL 语句
+    db.query(sql, values, (err, results) => {
+        if (err) {
+            console.error('Error querying the database:', err);
+            return;
+        }
+
+        if (results.length > 0) {
+            console.log('Login successful');
+            res.render('login', { message: '登录成功！' });
+        } else {
+            console.log('Login failed');
+            res.render('login', { message: '用户名或密码错误' });
+        }
+    });
+});
+
+
+
+app.get('/update-password-page', (req, res) => {
+    res.render('update-password');
+})
+
+// 处理更新用户密码的路由
+app.post('/update-password', (req, res) => {
+    const { username, currentPassword, newPassword } = req.body;
+
+    // 验证当前密码是否正确
+    const sqlCheck = 'SELECT * FROM users WHERE username = ? AND password = ?';
+    const checkValues = [username, currentPassword];
+
+    db.query(sqlCheck, checkValues, (err, results) => {
+        if (err) {
+            console.error('Error querying the database:', err);
+            res.status(500).send('Error querying the database');
+            return;
+        }
+
+        if (results.length === 0) {
+            console.log('当前密码输入错误');
+            res.status(400).send('Current password is incorrect');
+            return;
+        }
+
+        // 当前密码正确，更新新密码
+        const sqlUpdate = 'UPDATE users SET password = ? WHERE username = ?';
+        const updateValues = [newPassword, username];
+
+        db.query(sqlUpdate, updateValues, (err, result) => {
+            if (err) {
+                console.error('Error updating user password:', err);
+                res.status(500).send('Error updating user password');
+                return;
+            }
+            console.log('User password updated successfully');
+            res.send('User password updated successfully');
+        });
+    });
+});
+
+// 启动服务器
+app.listen(port, () => {
+    console.log(`Server is running on http://localhost:${port}`);
+});
\ No newline at end of file
diff --git a/nodejs/nodeExperiment5/package-lock.json b/nodejs/nodeExperiment5/package-lock.json
new file mode 100644
index 0000000..64a9d9d
--- /dev/null
+++ b/nodejs/nodeExperiment5/package-lock.json
@@ -0,0 +1,975 @@
+{
+  "name": "nodeexperiment5",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "nodeexperiment5",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "cors": "^2.8.5",
+        "express": "^5.1.0",
+        "mysql2": "^3.15.3"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/accepts/-/accepts-2.0.0.tgz",
+      "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/aws-ssl-profiles": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/aws-ssl-profiles/-/aws-ssl-profiles-1.1.2.tgz",
+      "integrity": "sha512-NZKeq9AfyQvEeNlN0zSYAaWrmBffJh3IELMZfRpJVWgrpEbtEpnjvzqBPf+mxoI287JohRDoa+/nsfqqiZmF6g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 6.0.0"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/body-parser/-/body-parser-2.2.0.tgz",
+      "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.0",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.6.3",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.0",
+        "raw-body": "^3.0.0",
+        "type-is": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/body-parser/node_modules/iconv-lite": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmmirror.com/iconv-lite/-/iconv-lite-0.6.3.tgz",
+      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmmirror.com/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmmirror.com/call-bound/-/call-bound-1.0.4.tgz",
+      "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "get-intrinsic": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/content-disposition/-/content-disposition-1.0.0.tgz",
+      "integrity": "sha512-Au9nRL8VNUut/XSzbQA38+M78dzP4D+eqg3gfJHMIHHYa3bg067xj1KxMUWj+VULbiZMowKngFFbKczUrNJ1mg==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "5.2.1"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmmirror.com/content-type/-/content-type-1.0.5.tgz",
+      "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmmirror.com/cookie/-/cookie-0.7.2.tgz",
+      "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie-signature": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmmirror.com/cookie-signature/-/cookie-signature-1.2.2.tgz",
+      "integrity": "sha512-D76uU73ulSXrD1UXF4KE2TMxVVwhsnCgfAyTg9k8P6KGZjlXKrOLe4dJQKI3Bxi5wjesZoFXJWElNWBjPZMbhg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.6.0"
+      }
+    },
+    "node_modules/cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmmirror.com/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "license": "MIT",
+      "dependencies": {
+        "object-assign": "^4",
+        "vary": "^1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
+    "node_modules/debug": {
+      "version": "4.4.3",
+      "resolved": "https://registry.npmmirror.com/debug/-/debug-4.4.3.tgz",
+      "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/denque": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmmirror.com/denque/-/denque-2.1.0.tgz",
+      "integrity": "sha512-HVQE3AAb/pxF8fQAoiqpvg9i3evqug3hoiwakOyZAwJm+6vZehbkYXZ0l4JxS+I3QxM97v5aaRNhj8v5oBhekw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.10"
+      }
+    },
+    "node_modules/depd": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/depd/-/depd-2.0.0.tgz",
+      "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/dunder-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/dunder-proto/-/dunder-proto-1.0.1.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmmirror.com/ee-first/-/ee-first-1.1.1.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/encodeurl": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/encodeurl/-/encodeurl-2.0.0.tgz",
+      "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/es-define-property": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/es-define-property/-/es-define-property-1.0.1.tgz",
+      "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-errors": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmmirror.com/es-errors/-/es-errors-1.3.0.tgz",
+      "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmmirror.com/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+      "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/escape-html": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmmirror.com/escape-html/-/escape-html-1.0.3.tgz",
+      "integrity": "sha512-NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==",
+      "license": "MIT"
+    },
+    "node_modules/etag": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmmirror.com/etag/-/etag-1.8.1.tgz",
+      "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/express": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmmirror.com/express/-/express-5.1.0.tgz",
+      "integrity": "sha512-DT9ck5YIRU+8GYzzU5kT3eHGA5iL+1Zd0EutOmTE9Dtk+Tvuzd23VBU+ec7HPNSTxXYO55gPV/hq4pSBJDjFpA==",
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+      "dependencies": {
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+        "body-parser": "^2.2.0",
+        "content-disposition": "^1.0.0",
+        "content-type": "^1.0.5",
+        "cookie": "^0.7.1",
+        "cookie-signature": "^1.2.1",
+        "debug": "^4.4.0",
+        "encodeurl": "^2.0.0",
+        "escape-html": "^1.0.3",
+        "etag": "^1.8.1",
+        "finalhandler": "^2.1.0",
+        "fresh": "^2.0.0",
+        "http-errors": "^2.0.0",
+        "merge-descriptors": "^2.0.0",
+        "mime-types": "^3.0.0",
+        "on-finished": "^2.4.1",
+        "once": "^1.4.0",
+        "parseurl": "^1.3.3",
+        "proxy-addr": "^2.0.7",
+        "qs": "^6.14.0",
+        "range-parser": "^1.2.1",
+        "router": "^2.2.0",
+        "send": "^1.1.0",
+        "serve-static": "^2.2.0",
+        "statuses": "^2.0.1",
+        "type-is": "^2.0.1",
+        "vary": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/finalhandler": {
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+        "statuses": "^2.0.1"
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+      "engines": {
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+    },
+    "node_modules/forwarded": {
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+      "resolved": "https://registry.npmmirror.com/forwarded/-/forwarded-0.2.0.tgz",
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+      "engines": {
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+      }
+    },
+    "node_modules/fresh": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/fresh/-/fresh-2.0.0.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/function-bind/-/function-bind-1.1.2.tgz",
+      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/generate-function": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmmirror.com/generate-function/-/generate-function-2.3.1.tgz",
+      "integrity": "sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==",
+      "license": "MIT",
+      "dependencies": {
+        "is-property": "^1.0.2"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmmirror.com/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+      "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+      "license": "MIT",
+      "dependencies": {
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+        "es-define-property": "^1.0.1",
+        "es-errors": "^1.3.0",
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+        "function-bind": "^1.1.2",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-symbols": "^1.1.0",
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+      "engines": {
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+      "funding": {
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+      }
+    },
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+      "resolved": "https://registry.npmmirror.com/get-proto/-/get-proto-1.0.1.tgz",
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+      "license": "MIT",
+      "engines": {
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+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/side-channel-map/-/side-channel-map-1.0.1.tgz",
+      "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+      "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/sqlstring": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmmirror.com/sqlstring/-/sqlstring-2.3.3.tgz",
+      "integrity": "sha512-qC9iz2FlN7DQl3+wjwn3802RTyjCx7sDvfQEXchwa6CWOx07/WVfh91gBmQ9fahw8snwGEWU3xGzOt4tFyHLxg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmmirror.com/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/type-is/-/type-is-2.0.1.tgz",
+      "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "license": "MIT",
+      "dependencies": {
+        "content-type": "^1.0.5",
+        "media-typer": "^1.1.0",
+        "mime-types": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
diff --git a/nodejs/nodeExperiment5/package.json b/nodejs/nodeExperiment5/package.json
new file mode 100644
index 0000000..5d06f60
--- /dev/null
+++ b/nodejs/nodeExperiment5/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "nodeexperiment5",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js",
+    "dev": "nodemon index.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cors": "^2.8.5",
+    "express": "^5.1.0",
+    "mysql2": "^3.15.3"
+  },
+  "devDependencies": {}
+}
\ No newline at end of file
diff --git a/nodejs/nodeExperiment5/public/login.ejs b/nodejs/nodeExperiment5/public/login.ejs
new file mode 100644
index 0000000..fef5caf
--- /dev/null
+++ b/nodejs/nodeExperiment5/public/login.ejs
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>登录</title>
+</head>
+<body>
+    <h1>用户登录</h1>
+    
+    <form action="/login" method="POST">
+        <div>
+            <label for="username">用户名:</label>
+            <input type="text" id="username" name="username" required>
+        </div>
+        
+        <div>
+            <label for="password">密码:</label>
+            <input type="password" id="password" name="password" required>
+        </div>
+        
+        <div>
+            <button type="submit">登录</button>
+        </div>
+    </form>
+    
+</body>
+</html>
\ No newline at end of file
diff --git a/nodejs/nodeExperiment5/public/register.ejs b/nodejs/nodeExperiment5/public/register.ejs
new file mode 100644
index 0000000..83b140a
--- /dev/null
+++ b/nodejs/nodeExperiment5/public/register.ejs
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>注册</title>
+</head>
+
+<body>
+    <h1>注册</h1>
+    <form action="/register" method="post">
+        <label for="username">用户名:</label>
+        <input type="text" id="username" name="username" required><br><br>
+
+        <label for="password">密码:</label>
+        <input type="password" id="password" name="password" required><br><br>
+
+        <label for="email">邮箱:</label>
+        <input type="email" id="email" name="email" required><br><br>
+
+        <label for="gender">性别:</label>
+        <input type="radio" id="male" name="gender" value="male" required>
+        <label for="male">男</label>
+        <input type="radio" id="female" name="gender" value="female" required>
+        <label for="female">女</label><br><br>
+
+        <label for="hobbies">爱好:</label>
+        <input type="checkbox" id="hobby1" name="hobbies" value="reading">
+        <label for="hobby1">阅读</label>
+        <input type="checkbox" id="hobby2" name="hobbies" value="music">
+        <label for="hobby2">音乐</label>
+        <input type="checkbox" id="hobby3" name="hobbies" value="sports">
+        <label for="hobby3">运动</label><br><br>
+
+        <label for="city">城市:</label>
+        <select id="city" name="city" required>
+            <option value="">请选择城市</option>
+            <option value="beijing">北京</option>
+            <option value="shanghai">上海</option>
+            <option value="guangzhou">广州</option>
+            <option value="shenzhen">深圳</option>
+        </select><br><br>
+
+        <label for="description">个人描述:</label><br>
+        <textarea id="description" name="description" rows="4" cols="50"></textarea><br><br>
+
+        <button type="submit">注册</button>
+    </form>
+
+</body>
+
+</html>
\ No newline at end of file
diff --git a/nodejs/nodeExperiment5/public/update.ejs b/nodejs/nodeExperiment5/public/update.ejs
new file mode 100644
index 0000000..01a12c5
--- /dev/null
+++ b/nodejs/nodeExperiment5/public/update.ejs
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>修改</title>
+</head>
+
+<body>
+    <!-- 修改密码 -->
+    <form action="/update-password" method="post">
+        <label for="username">用户名：</label>
+        <input type="text" name="username" id="username" required>
+        <label for="currentPassword">旧密码：</label>
+        <input type="password" name="currentPassword" id="currentPassword" required>
+        <label for="newPassword">新密码：</label>
+        <input type="password" name="newPassword" id="newPassword" required>
+        <button type="submit">修改</button>
+    </form>
+
+</body>
+
+</html>
\ No newline at end of file
diff --git a/nodejs/nodeExperiment6/.gitignore b/nodejs/nodeExperiment6/.gitignore
new file mode 100644
index 0000000..a3f7a51
--- /dev/null
+++ b/nodejs/nodeExperiment6/.gitignore
@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+coverage
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+*.tsbuildinfo
+
+.eslintcache
+
+# Cypress
+/cypress/videos/
+/cypress/screenshots/
+
+# Vitest
+__screenshots__/
diff --git a/nodejs/nodeExperiment6/index.js b/nodejs/nodeExperiment6/index.js
new file mode 100644
index 0000000..813083c
--- /dev/null
+++ b/nodejs/nodeExperiment6/index.js
@@ -0,0 +1,65 @@
+const express = require('express');
+const session = require('express-session');
+const bodyParser = require('body-parser');
+
+const app = express();
+const port = 3000;
+
+// 设置中间件
+app.use(bodyParser.urlencoded({ extended: false })); 
+app.use(bodyParser.json());
+
+// 配置 session 中间件
+app.use(session({
+    secret: 'hello kitty', 
+    resave: false, 
+    saveUninitialized: true, 
+    cookie: { secure: false } // 在生产环境中设置为 true
+}));
+
+
+// 创建登录接口
+app.post('/login', (req, res) => {
+    const { username, password } = req.body;
+
+    if (username === 'admin' && password === '123456') {
+        req.session.user = { id: 1, username };
+        res.send('User logged in');
+    } else {
+        res.status(401).send('Invalid credentials');
+    }
+});
+
+// 创建注销接口
+app.post('/logout', (req, res) => {
+    req.session.destroy((err) => {
+        if (err) {
+            return res.status(500).send('Could not log out.');
+        }
+        res.send('Logout successful');
+    });
+});
+
+// 认证中间件
+function isAuthenticated(req, res, next) {
+    if (req.session.user) {
+        next();
+    } else {
+        res.status(401).send('You are not authenticated!');
+    }
+}
+
+// 创建保护路由
+app.get('/protected', isAuthenticated, (req, res) => {
+    res.send('This is a protected route');
+});
+
+// 实现基于 Session 的身份认证机制
+app.get('/profile', isAuthenticated, (req, res) => {
+    res.send(`Welcome ${req.session.user.username}`);
+});
+
+
+app.listen(port, () => {
+    console.log(`Server is running on http://localhost:${port}`);
+});
\ No newline at end of file
diff --git a/nodejs/nodeExperiment6/index2.js b/nodejs/nodeExperiment6/index2.js
new file mode 100644
index 0000000..159c1b6
--- /dev/null
+++ b/nodejs/nodeExperiment6/index2.js
@@ -0,0 +1,57 @@
+const express = require('express');
+const bodyParser = require('body-parser');
+const jwt = require('jsonwebtoken');
+
+const app = express();
+const port = 3001;
+app.use(bodyParser.json());
+
+// 配置 JWT 相关函数
+function generateToken(user) {
+    // 生成 JWT 令牌
+    // - { user }: 包含用户信息的对象
+    // - 'hello kitty': 签名密钥，用于确保 JWT 的完整性
+    return jwt.sign({ user }, 'hello kitty', { expiresIn: '1h' });
+}
+
+// 验证 JWT 令牌
+function authenticateToken(req, res, next) {
+    const authHeader = req.headers['authorization'];// 从请求头中获取 Authorization 字段
+    const token = authHeader && authHeader.split(' ')[1];// 从 Authorization 字段中提取 JWT 令牌
+    
+    if (token == null) return res.sendStatus(401);
+    
+    jwt.verify(token, 'hello kitty', (err, user) => {// 验证 JWT 令牌
+        if (err) return res.sendStatus(403);
+        req.user = user;
+        next();
+    });
+}
+
+// 实现用户登录接口（JWT）
+app.post('/jwt-login', (req, res) => {
+    const { username, password } = req.body;// 从请求体中提取用户名和密码
+    
+    if (username === 'admin' && password === '123456') {
+        const user = { id: 1, username };
+        const accessToken = generateToken(user);// 生成 JWT 令牌
+        res.json({ accessToken });// 返回包含 JWT 令牌的 JSON 响应
+    } else {
+        res.status(401).send('Invalid credentials');
+    }
+});
+
+// 实现用户注销接口（JWT）
+app.post('/jwt-logout', (req, res) => {
+    res.send('Logged out successfully');
+    // 注意：JWT 本身没有会话管理，客户端需要删除存储的 JWT 令牌
+});
+
+// 创建保护路由，仅允许已认证用户访问（JWT）
+app.get('/jwt-profile', authenticateToken, (req, res) => {
+    // 使用 authenticateToken 中间件验证 JWT 令牌
+    res.send(`Welcome ${req.user.user.username}`);
+});
+
+
+app.listen(port, () => console.log(`JWT Server running on http://localhost:${port}`));
\ No newline at end of file
diff --git a/nodejs/nodeExperiment6/package-lock.json b/nodejs/nodeExperiment6/package-lock.json
new file mode 100644
index 0000000..f8a37d0
--- /dev/null
+++ b/nodejs/nodeExperiment6/package-lock.json
@@ -0,0 +1,1019 @@
+{
+  "name": "nodeexperiment6",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "nodeexperiment6",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "body-parser": "^2.2.1",
+        "express": "^5.1.0",
+        "express-session": "^1.18.2",
+        "jsonwebtoken": "^9.0.2"
+      }
+    },
+    "node_modules/accepts": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/accepts/-/accepts-2.0.0.tgz",
+      "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-types": "^3.0.0",
+        "negotiator": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/body-parser": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmmirror.com/body-parser/-/body-parser-2.2.1.tgz",
+      "integrity": "sha512-nfDwkulwiZYQIGwxdy0RUmowMhKcFVcYXUU7m4QlKYim1rUtg83xm2yjZ40QjDuc291AJjjeSc9b++AWHSgSHw==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "^3.1.2",
+        "content-type": "^1.0.5",
+        "debug": "^4.4.3",
+        "http-errors": "^2.0.0",
+        "iconv-lite": "^0.7.0",
+        "on-finished": "^2.4.1",
+        "qs": "^6.14.0",
+        "raw-body": "^3.0.1",
+        "type-is": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/buffer-equal-constant-time": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
+      "integrity": "sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA==",
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmmirror.com/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/call-bound": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmmirror.com/call-bound/-/call-bound-1.0.4.tgz",
+      "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "get-intrinsic": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/content-disposition/-/content-disposition-1.0.1.tgz",
+      "integrity": "sha512-oIXISMynqSqm241k6kcQ5UwttDILMK4BiurCfGEREw6+X9jkkpEe5T9FZaApyLGGOnFuyMWZpdolTXMtvEJ08Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/content-type": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmmirror.com/content-type/-/content-type-1.0.5.tgz",
+      "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/cookie": {
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+      "integrity": "sha512-KPHm4VL5dDXKz01UuEd88Df+KzynaohSL9fBh096KWAxSKZQDI2uBrVqtvRM4rwrIrRRKsdLNML/lnaaVSRioA==",
+      "license": "MIT",
+      "dependencies": {
+        "random-bytes": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    }
+  }
+}
diff --git a/nodejs/nodeExperiment6/package.json b/nodejs/nodeExperiment6/package.json
new file mode 100644
index 0000000..ec888f8
--- /dev/null
+++ b/nodejs/nodeExperiment6/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "nodeexperiment6",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js",
+    "dev": "nodemon index.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^2.2.1",
+    "express": "^5.1.0",
+    "express-session": "^1.18.2",
+    "jsonwebtoken": "^9.0.2"
+  }
+}
diff --git a/nodejs/nodeExperiment7/.gitignore b/nodejs/nodeExperiment7/.gitignore
new file mode 100644
index 0000000..a3f7a51
--- /dev/null
+++ b/nodejs/nodeExperiment7/.gitignore
@@ -0,0 +1,36 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.DS_Store
+dist
+dist-ssr
+coverage
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+*.tsbuildinfo
+
+.eslintcache
+
+# Cypress
+/cypress/videos/
+/cypress/screenshots/
+
+# Vitest
+__screenshots__/
diff --git a/nodejs/nodeExperiment7/example.html b/nodejs/nodeExperiment7/example.html
new file mode 100644
index 0000000..bc5bf6a
--- /dev/null
+++ b/nodejs/nodeExperiment7/example.html
@@ -0,0 +1 @@
+<html><body>Hello World</body></html>
\ No newline at end of file
diff --git a/nodejs/nodeExperiment7/index.js b/nodejs/nodeExperiment7/index.js
new file mode 100644
index 0000000..4dee7e2
--- /dev/null
+++ b/nodejs/nodeExperiment7/index.js
@@ -0,0 +1,11 @@
+console.log('开始');
+
+setTimeout(() => {
+    console.log('Timeout');
+}, 0);
+
+setImmediate(() => {
+    console.log('Immediate');
+});
+
+console.log('结束');
diff --git a/nodejs/nodeExperiment7/index2.js b/nodejs/nodeExperiment7/index2.js
new file mode 100644
index 0000000..8ac63d9
--- /dev/null
+++ b/nodejs/nodeExperiment7/index2.js
@@ -0,0 +1,26 @@
+console.log('Start');
+
+setTimeout(() => {
+    console.log('Timeout1');
+}, 1000);
+
+let a = 1;
+
+const intervalId = setInterval(() => {
+    console.log('Interval:', a++);
+    
+    if (a > 3) {
+        clearInterval(intervalId);
+        console.log('Interval cleared');
+    }
+}, 1000);
+
+setTimeout(() => {
+    console.log('Timeout2');
+}, 1000);
+
+setImmediate(() => {
+    console.log('Immediate');
+});
+
+console.log('End');
\ No newline at end of file
diff --git a/nodejs/nodeExperiment7/index3.js b/nodejs/nodeExperiment7/index3.js
new file mode 100644
index 0000000..187cdfa
--- /dev/null
+++ b/nodejs/nodeExperiment7/index3.js
@@ -0,0 +1,33 @@
+const fs = require('fs');
+const path = require('path');
+
+console.log('Start');
+
+const filePath = path.join(__dirname, 'example.html');
+if (!fs.existsSync(filePath)) {
+    fs.writeFileSync(filePath, '<html><body>Hello World</body></html>', 'utf8');
+}
+
+fs.readFile(filePath, 'utf8', (err, data) => {
+    console.log('File data read');
+    
+    if (err) {
+        console.log(__dirname);
+        console.log(err.message);
+        return;
+    }
+    
+    setTimeout(() => {
+        console.log('Timeout');
+    }, 0);
+    
+    setImmediate(() => {
+        console.log('Immediate');
+    });
+    
+    process.nextTick(() => {
+        console.log('Next Tick');
+    });
+});
+
+console.log('End');
\ No newline at end of file
diff --git a/nodejs/nodeExperiment7/index4.js b/nodejs/nodeExperiment7/index4.js
new file mode 100644
index 0000000..90a637f
--- /dev/null
+++ b/nodejs/nodeExperiment7/index4.js
@@ -0,0 +1,19 @@
+console.log('Start');
+
+setTimeout(() => {
+    console.log('Timeout');
+}, 0);
+
+setImmediate(() => {
+    console.log('Immediate');
+});
+
+process.nextTick(() => {
+    console.log('Next Tick 1');
+});
+
+process.nextTick(() => {
+    console.log('Next Tick 2');
+});
+
+console.log('End');
\ No newline at end of file
diff --git a/nodejs/nodeExperiment7/package.json b/nodejs/nodeExperiment7/package.json
new file mode 100644
index 0000000..0398e21
--- /dev/null
+++ b/nodejs/nodeExperiment7/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "nodeexperiment7",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}
diff --git a/web_test/images/bg1.jpg b/web_test/images/bg1.jpg
new file mode 100644
index 0000000..de201d6
Binary files /dev/null and b/web_test/images/bg1.jpg differ
diff --git a/web_test/images/libai.png b/web_test/images/libai.png
new file mode 100644
index 0000000..d4f5066
Binary files /dev/null and b/web_test/images/libai.png differ
diff --git a/web_test/images/relax.png b/web_test/images/relax.png
new file mode 100644
index 0000000..ea0e237
Binary files /dev/null and b/web_test/images/relax.png differ
diff --git a/web_test/test1/plan.html b/web_test/test1/plan.html
new file mode 100644
index 0000000..431c4ea
--- /dev/null
+++ b/web_test/test1/plan.html
@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>我的学习计划</title>
+    <style>
+        body {
+            font-family: "微软雅黑", "Microsoft YaHei", sans-serif;
+            max-width: 800px;
+            margin: 0 auto;
+            padding: 20px;
+            line-height: 1.6;
+            background-color: #f5f5f5;
+        }
+        h1 {
+            text-align: center;
+            color: #2c3e50;
+            margin-bottom: 30px;
+        }
+        .section {
+            background-color: white;
+            padding: 20px;
+            margin: 20px 0;
+            border-radius: 8px;
+            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+        }
+        h2 {
+            color: #3498db;
+            border-left: 4px solid #3498db;
+            padding-left: 10px;
+        }
+        ol, ul {
+            margin-left: 20px;
+        }
+        li {
+            margin: 10px 0;
+        }
+        a {
+            color: #e74c3c;
+            text-decoration: none;
+        }
+        a:hover {
+            text-decoration: underline;
+        }
+        .copyright {
+            text-align: center;
+            margin: 30px 0;
+            color: #7f8c8d;
+        }
+        .rest-img {
+            text-align: center;
+            margin: 20px 0;
+        }
+        .rest-img img {
+            max-width: 300px;
+            border-radius: 10px;
+            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
+        }
+    </style>
+</head>
+<body>
+    <h1>我的待办事项与学习资源</h1>
+    
+    <div class="section">
+        <h2>本周学习计划（周一至周三）</h2>
+        <ol>
+            <li>周一：学习HTML基础标签和语法</li>
+            <li>周二：练习CSS基础样式和布局</li>
+    <li>周三：完成第一次实验作业并复习</li>
+        </ol>
+    </div>
+    
+    <div class="section">
+        <h2>学习资源网站（周四至周六）</h2>
+        <ul>
+            <li><a href="https://www.w3schools.com" target="_blank">W3Schools在线教程</a></li>
+            <li><a href="https://developer.mozilla.org" target="_blank">MDN Web文档</a></li>
+            <li><a href="https://www.runoob.com" target="_blank">菜鸟教程</a></li>
+        </ul>
+    </div>
+    
+    <div class="copyright">
+        <p>版权所有 &copy; [施光甲]</p>
+    </div>
+    
+    <div class="rest-img">
+        <!-- 这里使用一个在线图片作为示例，实际使用时请替换为本地图片 -->
+        <img src="..\images\relax.png" alt="周日休息图片">
+        <p><em>周日：休息放松，为下一周做好准备</em></p>
+    </div>
+</body>
+</html>
\ No newline at end of file
diff --git a/web_test/test1/poem.html b/web_test/test1/poem.html
new file mode 100644
index 0000000..4b6278d
--- /dev/null
+++ b/web_test/test1/poem.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <style>
+       body {
+            font-family: "宋体", SimSun, serif;
+            max-width: 800px;
+            margin: 0 auto;
+            padding: 20px;
+            line-height: 1.6;
+        }
+        h1 {
+            text-align: center;
+        }
+        p {
+            text-indent: 2em;
+        }
+        h2 {
+            text-align: center;
+        }
+         .poem {
+            text-align: center;
+            margin: 30px 0;
+            font-size: 18px;
+            line-height: 2;
+        }
+        hr {
+            border: 1px solid #ccc;
+            margin: 20px 0;
+        }
+
+
+
+    </style>
+</head>
+<body>
+    <h1>李白《静夜思》赏析</h1>
+<p>《静夜思》是唐代诗人李白的经典诗作，它短小精悍，却蕴含着深深的思乡之情。</p>
+
+<h2>原诗内容</h2>
+
+ <div class="poem">
+        <p><strong>床前</strong>明月光，</p>
+        <p>疑是地上霜。</p>
+        <p>举头<sup>①</sup>望明月，</p>
+        <p><em>低头思故乡</em>。</p>
+    </div>
+
+<p>在诗中，“床前”这个词被加粗（床前），起到了一定的强调作用，让读者首先注意到诗人所处的位置。<br>
+而“疑是地上霜”这句诗，通过“霜”这个字形象地描绘出月光的皎洁清冷，仿佛地上结了一层霜，这种感觉通过简单的文字就传达给了读者。<br>
+当诗人“举头<sup>①</sup>望明月”时，这里的上标数字<sup>①</sup>可以用来做注释标记，表示对“举头”这个动作可能存在的特殊解读或者引用来源等，明月成为了引发思乡之情的重要媒介。<br>
+最后“低头思故乡”，诗人<em>深沉地（用em标签表示情感上的强调）</em>陷入对故乡的思念之中。</p>
+<hr>
+<p>这首诗虽然没有华丽的辞藻，但每一个字都像是经过精心雕琢，<strong>强烈地（用strong标签表示语义上的强调）</strong>触动着读者内心深处的思乡情感，成为了千古流传的佳作。</p>
+</body>
+</html>
\ No newline at end of file
diff --git a/web_test/test2/attri_practice.html b/web_test/test2/attri_practice.html
new file mode 100644
index 0000000..919020b
--- /dev/null
+++ b/web_test/test2/attri_practice.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+
+<head>
+    <meta charset="UTF-8">
+    <title>CSS属性练习</title>
+    <style>
+        /* (3) 使用标记选择器将p标签中的字体颜色设置为#cc0000，字体大小为32px */
+        p {
+            color: #cc0000;
+            font-size: 32px;
+        }
+
+        /* (4) 使用id选择器将p标签的背景颜色设置为gray */
+        #paragraph {
+            background-color: gray;
+        }
+
+        /* (5) 使用类选择器将p标签中内容的对齐方式设置为水平居中对齐,字体样式为斜体，字体用宋体 */
+        .center {
+            text-align: center;
+            font-style: italic;
+            font-family: "SimSun", "宋体", serif;
+        }
+
+        /* (6) 使用伪类选择器，取消a标签的下划线 */
+        a {
+            text-decoration: none;
+        }
+
+        /* 注意：伪类选择器的顺序很重要，必须按照LVHA顺序 */
+        /* a标记未被访问时，字体颜色为gray */
+        a:link {
+            color: gray;
+        }
+
+        /* a标记在被访问后，字体颜色为#9900ff */
+        a:visited {
+            color: #9900ff;
+        }
+
+        /* 鼠标悬停在a标记上时，字体颜色为red，字体大小为24px */
+        a:hover {
+            color: red;
+            font-size: 24px;
+        }
+
+        /* a标记在被用户激活时，字体颜色为rgb(0, 204, 0) */
+        a:active {
+            color: rgb(0, 204, 0);
+        }
+
+        /* (7) 选取带有title属性的标记，并设置字体粗细为bold */
+        [title] {
+            font-weight: bold;
+        }
+    </style>
+</head>
+
+<body>
+    <!-- (1) 为p标签添加title属性，属性值为tit -->
+    <p id="paragraph" class="center" title="tit">一个段落</p>
+
+    <!-- (2) 实现a标签点击跳转到菜鸟教程的功能，要求在一个全新的空白窗口打开链接 -->
+    <a href="https://www.runoob.com" target="_blank">点击跳转到菜鸟教程</a>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test2/news.html b/web_test/test2/news.html
new file mode 100644
index 0000000..bc5cac1
--- /dev/null
+++ b/web_test/test2/news.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+
+<head>
+    <meta charset="UTF-8">
+    <title>新闻</title>
+    <style>
+        p {
+            letter-spacing: 6px;
+            /* 字符间距 */
+            line-height: 2em;
+            /* 行高 */
+            text-indent: 2em;
+            /* 首行缩进 */
+            word-spacing: 10px;
+            /* 单词间距 */
+        }
+    </style>
+</head>
+
+<body>
+    <p>昨天上午，南京国际博览中心金陵会议中心内欢声笑语，春意盎然，省委、省政府在这里举行春节团拜会。 Yesterday morning, the Jinling Conference Center of Nanjing
+        International Expo Center was filled with laughter and joy, and the provincial party committee and government
+        held a Spring Festival gathering here.</p>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test2/product.html b/web_test/test2/product.html
new file mode 100644
index 0000000..bd5dccb
--- /dev/null
+++ b/web_test/test2/product.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+
+<head>
+    <meta charset="UTF-8">
+    <title>产品介绍</title>
+    <style>
+        /* 使用标记选择器为介绍重庆的段落设置样式 */
+        p.chongqing {
+            text-decoration: underline;
+            /* 下划线 */
+            text-transform: capitalize;
+            /* 首字母大写 */
+        }
+
+        /* 使用id选择器为介绍四川的段落设置样式 */
+        #sichuan {
+            text-decoration: line-through;
+            /* 删除线 */
+            text-transform: lowercase;
+            /* 所有字母小写 */
+        }
+
+        /* 使用类选择器为介绍贵州的段落设置样式 */
+        .guizhou {
+            text-decoration: overline;
+            /* 上划线 */
+            text-transform: uppercase;
+            /* 所有字母大写 */
+        }
+    </style>
+</head>
+
+<body>
+    <h3>设置文字装饰及大小写转换</h3>
+
+    <p class="chongqing">Chongqing, abbreviated as "Yu", is a municipality directly under the central and western
+        regions of China, famous for its mountainous city characteristics, hotpot culture, and the beautiful scenery of
+        the confluence of the Yangtze River and Jialing River.</p>
+
+    <p id="sichuan">Sichuan, abbreviated as "Chuan" or "Shu", is located in southwestern China and is a province known
+        for its magnificent natural scenery, rich cultural heritage, and spicy cuisine.</p>
+
+    <p class="guizhou">Guizhou, abbreviated as "Qian" or "Gui", is located in southwestern China and is a province
+        renowned for its diverse ethnic cultures, spectacular karst landforms, and beautiful natural landscapes.</p>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test3/table.html b/web_test/test3/table.html
new file mode 100644
index 0000000..cbd9fe3
--- /dev/null
+++ b/web_test/test3/table.html
@@ -0,0 +1,92 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>简易学生表</title>
+    <link rel="stylesheet" href="tableTitle.css">
+    <style>
+        .tou {
+            background-color: #fff;
+        }
+
+        .shou {
+
+            background-color: yellowgreen;
+
+        }
+
+        .odd {
+
+            background-color: #CDF8F9;
+
+        }
+
+        .even {
+
+            background-color: #FDEFBB;
+
+        }
+
+
+        td,
+        th {
+            text-align: center;
+        }
+    </style>
+</head>
+
+<body>
+    <table border="1" width="600" height="400" align="center" cellspacing="0" cellpadding="5"
+        style="border-collapse: collapse;">
+        <caption>简易学生表</caption>
+
+        <!-- 表头行：姓名、单位、学号 -->
+        <tr class="tou">
+            <td></td>
+            <th>姓名</th>
+            <th>单位</th>
+            <th>学号</th>
+        </tr>
+
+        <!-- 数据行1：基数行，背景色#CDF8F9（由伪类控制） -->
+        <tr class="odd">
+            <td rowspan="4" class="shou">2024-2025学年</td>
+            <td>王小品</td>
+            <td>商学院</td>
+            <td>110204</td>
+        </tr>
+
+        <!-- 数据行2：偶数行，背景色#FDEFBB（由伪类控制） -->
+        <tr class="even">
+            <td>李中</td>
+            <td>财经学院</td>
+            <td>120204</td>
+        </tr>
+
+        <!-- 数据行3：基数行，含跨行单元格（rowspan="2"） -->
+        <tr class="odd">
+            <!-- 跨行单元格：“2024-2025学年”跨2行，对应实验“单元格跨行”要求 -->
+
+            <td>胡三</td>
+            <td>大数据学院</td>
+            <td>130504</td>
+        </tr>
+
+        <!-- 数据行4：偶数行，因上一行有跨行单元格，本行少1个td -->
+        <tr class="even">
+            <td>李白</td>
+            <td>人工智能学院</td>
+            <td>100244</td>
+        </tr>
+
+        <!-- 数据行5：含跨列单元格（colspan="3"），对应实验“单元格跨列”要求 -->
+        <tr>
+            <!-- 跨列单元格：“重庆城市科技学院”跨3列 -->
+            <td colspan="4">重庆城市科技学院</td>
+        </tr>
+    </table>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test3/tableTitle.css b/web_test/test3/tableTitle.css
new file mode 100644
index 0000000..a9b1d7e
--- /dev/null
+++ b/web_test/test3/tableTitle.css
@@ -0,0 +1,13 @@
+/* 表格标题(caption)样式定义，对应实验要求的标题样式 */
+caption {
+    /* 标题字体粗细为bold */
+    font-weight: bold;
+    /* 标题字体大小为24px */
+    font-size: 24px;
+    /* 标题字体颜色为#0DAEB4 */
+    color: #0DAEB4;
+    /* 标题背景颜色为bisque */
+    background-color: bisque;
+    /* 标题行高为36px */
+    line-height: 36px;
+}
\ No newline at end of file
diff --git a/web_test/test4/index.html b/web_test/test4/index.html
new file mode 100644
index 0000000..0ad7ab1
--- /dev/null
+++ b/web_test/test4/index.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>主页</title>
+    <link rel="stylesheet" href="./public/mainMenu.css">
+</head>
+
+<body>
+    <ul class="main-menu">
+        <li><a href="#">菜单1</a>
+
+            <ul class="sub-menu">
+                <li><a href="#">菜单1-1</a></li>
+                <li><a href="#">菜单1-2</a></li>
+                <li><a href="#">菜单1-3</a></li>
+            </ul>
+        </li>
+        <li>
+            <a href="#">菜单2</a>
+            <ul class="sub-menu">
+                <li><a href="#">菜单2-1</a></li>
+                <li><a href="#">菜单2-2</a></li>
+                <li><a href="#">菜单2-3</a></li>
+            </ul>
+        </li>
+        <li>
+            <a href="#">菜单3</a>
+            <ul class="sub-menu">
+                <li><a href="#">菜单3-1</a></li>
+                <li><a href="#">菜单3-2</a></li>
+                <li><a href="#">菜单3-3</a></li>
+            </ul>
+        </li>
+    </ul>
+    <div></div>
+</body>
+
+
+<body>
+  <ul class="main-menu">
+    <li><a href="#">菜单1</a><ul class="sub-menu"><li><a href="#">菜单1-1</a></li><li><a href="#">菜单1-2</a></li><li><a href="#">菜单1-3</a></li></ul></li>
+    <li><a href="#">菜单2</a><ul class="sub-menu"><li><a href="#">菜单2-1</a></li><li><a href="#">菜单2-2</a></li><li><a href="#">菜单2-3</a></li></ul></li>
+    <li><a href="#">菜单3</a><ul class="sub-menu"><li><a href="#">菜单3-1</a></li><li><a href="#">菜单3-2</a></li><li><a href="#">菜单3-3</a></li></ul></li>
+  </ul>
+  <div></div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test4/public/mainMenu.css b/web_test/test4/public/mainMenu.css
new file mode 100644
index 0000000..78bc075
--- /dev/null
+++ b/web_test/test4/public/mainMenu.css
@@ -0,0 +1,49 @@
+* {
+    margin: 0;
+    padding: 0;
+    font-size: 24px;
+    box-sizing: border-box;
+}
+
+ul li {
+    list-style: none;
+}
+
+.sub-menu {
+    display: none;
+}
+
+ul>li:hover .sub-menu {
+    display: block;
+}
+
+a {
+    text-decoration: none;
+    color: inherit;
+}
+
+.main-menu li {
+    background-color: #c22fef;
+    color: aliceblue;
+    border-radius: 2px;
+    text-align: center;
+}
+
+.main-menu>li {
+    width: 200px;
+    border: 1px solid #77049a;
+    margin: 1px 3px;
+
+}
+
+li:hover {
+    background-color: #a93aca;
+}
+
+div {
+    border: 20px solid red;
+    border-left-color: transparent;
+    border-right-color: transparent;
+    border-bottom-color: transparent;
+    display: inline-block;
+}
\ No newline at end of file
diff --git a/web_test/test5/index.html b/web_test/test5/index.html
new file mode 100644
index 0000000..9f92141
--- /dev/null
+++ b/web_test/test5/index.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <link rel="stylesheet" href="./public/index.css">
+    <link rel="stylesheet" href="./public/mainMenu.css">
+</head>
+
+<body>
+    <!-- 页面容器 -->
+    <div class="container">
+        <header>
+            标题栏
+        </header>
+        <main class="clearfiexd">
+            <nav>
+                <ul class="main-menu">
+                    <li><a href="#">菜单1</a>
+
+                        <ul class="sub-menu">
+                            <li><a href="#">菜单1-1</a></li>
+                            <li><a href="#">菜单1-2</a></li>
+                            <li><a href="#">菜单1-3</a></li>
+                        </ul>
+                    </li>
+                    <li>
+                        <a href="#">菜单2</a>
+                        <ul class="sub-menu">
+                            <li><a href="#">菜单2-1</a></li>
+                            <li><a href="#">菜单2-2</a></li>
+                            <li><a href="#">菜单2-3</a></li>
+                        </ul>
+                    </li>
+                    <li>
+                        <a href="#">菜单3</a>
+                        <ul class="sub-menu">
+                            <li><a href="#">菜单3-1</a></li>
+                            <li><a href="#">菜单3-2</a></li>
+                            <li><a href="#">菜单3-3</a></li>
+                        </ul>
+                    </li>
+                </ul>
+            </nav>
+            <div class="content">
+                <img src="../images/libai.png" alt="图片">
+                <div style="font-size: 0;">
+                    <button>图片详情1</button>
+                    <button>图片详情2</button>
+                    <button>图片详情3</button>
+                </div>
+            </div>
+        </main>
+        <footer>&copy; 2025 FlexLayout 示例. 保留所有权利.</footer>
+    </div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test5/public/index.css b/web_test/test5/public/index.css
new file mode 100644
index 0000000..62c31ef
--- /dev/null
+++ b/web_test/test5/public/index.css
@@ -0,0 +1,62 @@
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+    font-size: 24px;
+}
+
+.container {
+    display: flex;
+    flex-direction: column;
+    height: 100vh;
+}
+
+header {
+    background-color: #9a9bb4;
+    height: 80px;
+    line-height: 80px;
+    text-align: center;
+}
+
+main {
+    background-color: blue;
+    flex: 1;
+    display: flex;
+}
+
+main nav {
+    background-color: #9a9bb4;
+    float: left;
+}
+
+.content {
+    background-color: #e8d5d5;
+    /* width: 500px; */
+    margin-left: auto;
+    text-align: center;
+    flex-direction: column;
+    flex: 1;
+}
+
+
+.clearfiexd::after {
+    content: "";
+    height: 0;
+    display: block;
+    clear: both;
+    visibility: hidden;
+}
+
+.content img {
+    width: 500px;
+}
+
+.content button {
+    margin-top: 20px;
+    margin-right: 20px;
+    padding: 5px;
+}
+
+footer {
+    text-align: center;
+}
\ No newline at end of file
diff --git a/web_test/test5/public/mainMenu.css b/web_test/test5/public/mainMenu.css
new file mode 100644
index 0000000..3ed9f54
--- /dev/null
+++ b/web_test/test5/public/mainMenu.css
@@ -0,0 +1,49 @@
+* {
+    margin: 0;
+    padding: 0;
+    font-size: 24px;
+    box-sizing: border-box;
+}
+
+ul li {
+    list-style: none;
+}
+
+.sub-menu {
+    display: none;
+}
+
+ul>li:hover .sub-menu {
+    display: block;
+}
+
+a {
+    text-decoration: none;
+    color: inherit;
+}
+
+.main-menu li {
+    background-color: #c22fef;
+    color: aliceblue;
+    border-radius: 2px;
+    text-align: center;
+}
+
+.main-menu>li {
+    width: 200px;
+    border: 1px solid #77049a;
+    margin: 1px 3px;
+
+}
+
+li:hover {
+    background-color: #a93aca;
+}
+
+/* div {
+    border: 20px solid red;
+    border-left-color: transparent;
+    border-right-color: transparent;
+    border-bottom-color: transparent;
+    display: inline-block;
+} */
\ No newline at end of file
diff --git a/web_test/test6/login.css b/web_test/test6/login.css
new file mode 100644
index 0000000..606cb58
--- /dev/null
+++ b/web_test/test6/login.css
@@ -0,0 +1,67 @@
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+body {
+    height: 100vh;
+    background-image: url('../images/bg1.jpg');
+    background-size: 100% 100%;
+    background-repeat: no-repeat;
+    position: relative;
+}
+
+.form-container {
+    width: 400px;
+    background-color: rgba(255, 255, 255, 0.6);
+    position: absolute;
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
+    padding: 20px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+h2 {
+    text-align: center;
+    margin-bottom: 20px;
+}
+
+.form div {
+    margin-bottom: 15px;
+}
+
+input[type="text"],
+input[type="password"] {
+    width: 100%;
+    padding: 10px;
+    margin-bottom: 20px;
+    border: 1px solid #ccc;
+    border-radius: 3px;
+}
+
+.user-type-label {
+    margin-right: 5px;
+}
+
+button {
+    width: 100%;
+    padding: 10px;
+    background-color: #007bff;
+    color: white;
+    border: none;
+    border-radius: 3px;
+    cursor: pointer;
+}
+
+button:hover {
+    background-color: #0056b3;
+}
+
+a {
+    text-decoration: none;
+    color: inherit;
+    font-size: inherit;
+}
\ No newline at end of file
diff --git a/web_test/test6/login.html b/web_test/test6/login.html
new file mode 100644
index 0000000..910e0b7
--- /dev/null
+++ b/web_test/test6/login.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>登录</title>
+    <link rel="stylesheet" href="./login.css">
+</head>
+
+<body>
+    <!-- 登录 -->
+    <div class="form-container">
+        <h2>欢迎登陆</h2>
+        <form class="form">
+            <div>
+                <label for="username">用户名：</label>
+                <input type="text" name="username" placeholder="请输入用户名" required><br>
+            </div>
+            <div>
+                <label for="password">密码：</label>
+                <input type="password" name="password" placeholder="请输入密码" required><br>
+            </div>
+            <div>
+                <label class="user-type-label">用户类型：</label>
+                <input type="radio" name="userType" value="1" checked>普通用户
+                <input type="radio" name="userType" value="2">管理员
+            </div>
+            <div>
+                记住我<input type="checkbox" name="rememberMe">
+            </div>
+            <button type="submit"><a href="../test5/index.html">登录</a></button>
+        </form>
+        </form>
+    </div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test6/register.css b/web_test/test6/register.css
new file mode 100644
index 0000000..9b79250
--- /dev/null
+++ b/web_test/test6/register.css
@@ -0,0 +1,67 @@
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+body {
+    height: 100vh;
+    background-image: url('../images/bg1.jpg');
+    background-size: 100% 100%;
+    background-repeat: no-repeat;
+    position: relative;
+}
+
+.form-container {
+    width: 400px;
+    background-color: rgba(255, 255, 255, 0.6);
+    position: absolute;
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
+    padding: 20px;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+}
+
+h2 {
+    text-align: center;
+    margin-bottom: 20px;
+}
+
+.form div {
+    margin-bottom: 10px;
+}
+
+input[type="text"],
+input[type="password"] {
+    width: 100%;
+    padding: 10px;
+    margin-bottom: 20px;
+    border: 1px solid #ccc;
+    border-radius: 3px;
+}
+
+.user-type-label {
+    margin-right: 5px;
+}
+
+button {
+    width: 100%;
+    padding: 10px;
+    background-color: #007bff;
+    color: white;
+    border: none;
+    border-radius: 3px;
+    cursor: pointer;
+}
+
+button:hover {
+    background-color: #0056b3;
+}
+
+a {
+    text-decoration: none;
+    color: inherit;
+    font-size: inherit;
+}
\ No newline at end of file
diff --git a/web_test/test6/register.html b/web_test/test6/register.html
new file mode 100644
index 0000000..a8c56de
--- /dev/null
+++ b/web_test/test6/register.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>注册</title>
+    <link rel="stylesheet" href="./register.css">
+</head>
+
+<body>
+    <div class="form-container">
+        <h2>注册</h2>
+        <form class="form">
+            <div>
+                <label for="username">用户名：</label>
+                <input type="text" name="username" placeholder="请输入用户名" required><br>
+            </div>
+            <div>
+                <label for="password">密码：</label>
+                <input type="password" name="password" placeholder="请输入密码" required><br>
+            </div>
+            <div>
+                <label for="password">密码：</label>
+                <input type="password" name="password" placeholder="请再次输入密码" required><br>
+            </div>
+            <div>
+                <label class="user-type-label">用户类型：</label>
+                <input type="radio" name="userType" value="1" checked>普通用户
+                <input type="radio" name="userType" value="2">管理员
+            </div>
+            <button type="submit"><a href="../test5/index.html">注册</a></button>
+        </form>
+        </form>
+    </div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/web_test/test7/index.html b/web_test/test7/index.html
new file mode 100644
index 0000000..55ba79a
--- /dev/null
+++ b/web_test/test7/index.html
@@ -0,0 +1,131 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+
+<body>
+    <script>
+        // 1、字符串操作
+        // let str1 = "1203def456";
+
+        // let num1 = parseInt(str1);
+        // console.log("num1的值为:", num1);
+
+        // console.log("num1的数据类型:", typeof num1);
+
+        // let str2 = num1.toString();
+        // console.log("str2的值为:", str2);
+
+        // console.log("str2中的字符'0':", str2.charAt(1));
+
+        // 2、矩形面积计算函数
+        // function calculateArea(width, height) {
+        //     let area = width * height;
+        //     return area;
+        // }
+
+        // let scaleFactor = 2;
+
+        // let width = 5;
+        // let height = 3;
+        // let area = calculateArea(width * scaleFactor, height * scaleFactor);
+        // console.log("计算后的面积为:", area);
+
+
+        // 3、 使用for循环计算1+2+3+4+5的和
+        // let sum = 0;
+        // for (let i = 1; i <= 5; i++) {
+        //     sum += i;
+        // }
+        // console.log("1+2+3+4+5的和为:", sum);
+
+        // 4. 通过提示框输入整数并判断奇偶
+        // let inputNum = prompt("请输入一个整数:");
+        // let result = (inputNum % 2 === 0) ? "该数是偶数" : "该数是奇数";
+        // alert(result);
+
+        // 5、操作数组
+        // 5.1 向arr1添加元素后
+        // 5.2 删除arr2最后一个元素后
+        // 5.3 删除arr3第一个元素后
+        // 5.4 在arr4开头添加元素后
+        // 5.5 数组转字符串
+        // 5.5 字符串转数组
+        // 5.6 拼接后的数组
+        // let arr1 = [1, 2, 3];
+        // let newLength1 = arr1.push(4);
+        // console.log("5.1 向arr1添加元素后:", arr1, "新长度:", newLength1);
+
+        // let arr2 = ['apple', 'banana', 'orange'];
+        // let removedElement2 = arr2.pop();
+        // console.log("5.2 删除arr2最后一个元素后:", arr2, "被删除的元素:", removedElement2);
+
+        // let arr3 = [1, 2, 3];
+        // let removedElement3 = arr3.shift();
+        // console.log("5.3 删除arr3第一个元素后:", arr3, "被删除的元素:", removedElement3);
+
+        // let arr4 = [1, 2, 3];
+        // let newLength4 = arr4.unshift(0);
+        // console.log("5.4 在arr4开头添加元素后:", arr4, "新长度:", newLength4);
+
+        // let arr5 = [1, 2, 3, 4];
+        // let strFromArr = arr5.join('-');
+        // let arrFromStr = strFromArr.split('-');
+        // console.log("5.5 数组转字符串:", strFromArr);
+        // console.log("5.5 字符串转数组:", arrFromStr);
+
+        // let arr6 = ['A', 'B', "C"];
+        // let arr7 = [true, false];
+        // let concatenatedArr = arr6.concat(arr7);
+        // console.log("5.6 拼接后的数组:", concatenatedArr);
+
+        // 6. 使用for循环循环打印fruits数组的元素
+        // let fruits = ["apple", "banana", "cherry"];
+        // console.log("6. fruits数组元素:");
+        // for (let i = 0; i < fruits.length; i++) {
+        //     console.log(fruits[i]);
+        // }
+
+        // 7. 使用for...in循环遍历对象的属性
+        // let person = {
+        //     name: "John",
+        //     age: 30,
+        //     city: "New York"
+        // };
+
+        // console.log("7. 遍历person对象:");
+        // for (let key in person) {
+        //     console.log("属性名:", key, "属性值:", person[key]);
+        // }
+
+        // 8. 获得当前日期并格式化
+        function getCurrentDateFormatted() {
+            let now = new Date();
+
+            // 获取年、月、日、时、分、秒
+            let year = now.getFullYear();
+            let month = String(now.getMonth() + 1).padStart(2, '0');
+            let day = String(now.getDate()).padStart(2, '0');
+            let hours = String(now.getHours()).padStart(2, '0');
+            let minutes = String(now.getMinutes()).padStart(2, '0');
+            let seconds = String(now.getSeconds()).padStart(2, '0');
+
+            // 格式化日期字符串
+            let formattedDate = `${year}年${month}月${day}日 ${hours}:${minutes}:${seconds}`;
+            return formattedDate;
+        }
+
+        // 在控制台输出
+        let currentDate = getCurrentDateFormatted();
+        console.log("8. 当前日期:", currentDate);
+
+        // 在页面上显示
+        document.body.innerHTML += `<p>当前时间: ${currentDate}</p>`;
+    </script>
+</body>
+
+</html>
\ No newline at end of file