/
random.go
41 lines (36 loc) · 1.02 KB
/
random.go
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package util
import (
"math/rand"
"time"
)
// Random 随机生成指定范围的数
func Random(min, max int64) int64 {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
return r.Int63n(max-min) + min
}
// RandomNumber 随机生成一个数
func RandomNumber() int64 {
return rand.New(rand.NewSource(time.Now().UnixNano())).Int63()
}
// RandomStr 随机指定长度的字符串,不含大写
func RandomStr(length int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyz"
bytes := []byte(str)
result := make([]byte, length)
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < length; i++ {
result[i] = bytes[r.Intn(len(str))]
}
return string(result)
}
// RandomString 生成随机字符串
func RandomString(length int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
bytes := []byte(str)
result := make([]byte, length)
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < length; i++ {
result[i] = bytes[r.Intn(len(str))]
}
return string(result)
}