[Golang] 生成随机字符串

func RandStr(length int) string {
    var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
    b := make([]rune, length)
    for i := range b {
        b[i] = letters[rand.Intn(len(letters))]
    }
    return string(b)
}

func RandStr(length int) string {
	str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
	bytes := []byte(str)
	result := []byte{}
	rand.Seed(time.Now().UnixNano()+ int64(rand.Intn(100)))
	for i := 0; i < length; i++ {
		result = append(result, bytes[rand.Intn(len(bytes))])
	}
	return string(result)
}