Go 随机打乱 字符串 数组

func Random(strings []string) string {

	for i := len(strings) - 1; i > 0; i-- {
		num := rand.Intn(i + 1)
		strings[i], strings[num] = strings[num], strings[i]
	}

	str := ""
	for i := 0; i < len(strings); i++ {
		str += strings[i]
	}
	return str
}