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- package mfw
- import (
- "crypto/rand"
- "encoding/hex"
- // "encoding/hex"
- //"fmt"
- mr "math/rand"
- )
- const (
- KEY = "()*+-_=~`!@#$%^&*{}[]|',.<>?abcdefghhijklmnopqrstuvwxyz0123456789ABCDEFJHIJKLMNOPQRSTUVWXYZ"
- )
- //
- func UUID(length int) string {
- tmp := make([]byte, length>>1)
- rand.Read(tmp)
- return hex.EncodeToString(tmp)
- }
- //
- func OldUUID(length int) string {
- ret := ""
- for i := 0; i < length; i++ {
- pos := mr.Intn(90)
- ret += KEY[pos : pos+1]
- }
- return ret
- }
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