/
rand.go
58 lines (52 loc) · 1.44 KB
/
rand.go
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package rand
import (
"fmt"
"math/rand"
"time"
)
// Gen6Number gen 6 rand number
func Gen6Number() string {
rnd := rand.New(rand.NewSource(time.Now().UnixNano()))
return fmt.Sprintf("%06v", rnd.Int31n(1000000))
}
// GetRandomNumber 生成随机数字字符串
func GetRandomNumber(num int) string {
str := "0123456789"
bytes := []byte(str)
result := []byte{}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < num; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
// GetRandomString 生成随机字符串
func GetRandomString(num int) string {
str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
bytes := []byte(str)
result := []byte{}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < num; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
// GetBase32String 生成Base32随机字符串
func GetBase32String(num int) string {
str := "234567ABCDEFGHIJKLMNOPQRSTUVWXYZ"
bytes := []byte(str)
result := []byte{}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < num; i++ {
result = append(result, bytes[r.Intn(len(bytes))])
}
return string(result)
}
// GetRandomItNum 返回输入参数以下的随机数字,如输入参数为5,随机返回1,2,3,4,5
func GetRandomItNum(num int) int {
if num == 0 {
return 0
}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
return r.Intn(num) + 1
}