23 lines
471 B
Go
23 lines
471 B
Go
package common
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import (
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"math/rand"
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"time"
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)
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// Rand 生成指定长度的随机字符串，字符集为 [0-9a-zA-Z]
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func Rand(length int) string {
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const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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seededRand := rand.New(rand.NewSource(time.Now().UnixNano()))
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b := make([]byte, length)
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for i := range b {
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b[i] = charset[seededRand.Intn(len(charset))]
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}
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return string(b)
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}
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func RandFloat64() float64 {
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return rand.Float64()
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}
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