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48 lines
899 B
Go
48 lines
899 B
Go
package tools
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import (
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"math/rand"
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"time"
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)
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//生成随机字符串
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var _bytes []byte = []byte("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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var r *rand.Rand
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func GetRandomString(n int) string {
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result := []byte{}
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if r == nil {
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r = rand.New(rand.NewSource(time.Now().UnixNano()))
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}
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for i := 0; i < n; i++ {
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result = append(result, _bytes[r.Intn(len(_bytes))])
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}
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return string(result)
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}
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//生成随机整数 digit：位数
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func GenerateRangeNum(digit int) int {
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var max, min int = 1, 1
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if digit > 0 {
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for i := 0; i < digit; i++ {
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max = max * 10
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}
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for i := 0; i < digit-1; i++ {
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min = min * 10
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}
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}
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rand.Seed(time.Now().Unix())
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return rand.Intn(max-min) + min
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}
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//生成随机整数 digit：位数
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func GetGetRandInt(min int, max int) int {
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if min > max {
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min = 0
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max = 0
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}
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rand.Seed(time.Now().Unix())
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return rand.Intn(max-min) + min
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}
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