pkg.daxia.dev/guid/guid.go

package guid

import (
	"fmt"
	"log"
	"math/rand"
	"time"
)

func Gen() string {
	rand.Seed(time.Now().UnixNano())
	b := make([]byte, 16)
	_, err := rand.Read(b)
	if err != nil {
		log.Fatal(err)
	}
	uuid := fmt.Sprintf("%x-%x-%x-%x-%x",
		b[0:4], b[4:6], b[6:8], b[8:10], b[10:])

	return uuid
}

func GenNoSplit() string {
	rand.Seed(time.Now().UnixNano()) //设置随机数种子

	b := make([]byte, 16)
	_, err := rand.Read(b)
	if err != nil {
		log.Fatal(err)
	}
	uuid := fmt.Sprintf("%x%x%x%x%x",
		b[0:4], b[4:6], b[6:8], b[8:10], b[10:])

	return uuid
}