while循环练习

//练习:输入用户名密码，使用While，如果输错，提示再次输入，直到正确

using System;
using System.Collections.Generic;
using System.Text;

namespace 练习
{
    class Program
    {
        static void Main(string[] args)
        {
            string username = Console.ReadLine();
            string password = Console.ReadLine();

            while (username != "zhangjie" && password != "123456")
            {
                Console.WriteLine("你输入的用户名和密码不正确，请重输");
                username = Console.ReadLine();
                password = Console.ReadLine();
            }
        }
    }
}