using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ConsoleApplication3{    class Program    {        static void Main(string[] args)        {            Console.WriteLine("请输入用户名");            string name = Console.ReadLine();            Console.WriteLine("请输入密码");            string pwd = Console.ReadLine();                        string msg;            bool b = IsLogin(name,pwd,out msg);            Console.WriteLine();            Console.WriteLine("登陆结果:{0}",b);            Console.WriteLine("登陆信息:{0}", msg);            Console.ReadKey();        }                        /// <summary>        /// 判断登陆是否成功        /// </summary>        /// <param name="name">用户名</param>        /// <param name="pwd">密码</param>        /// <param name="msg">多余返回信息</param>        /// <returns>登陆布尔值</returns>        public static bool IsLogin(string name,string pwd,out string msg)        {            if(name == "admin" && pwd == "888888")            {                msg = "登陆成功";                return true;            }            else if(name=="admin")            {                msg = "密码错误";                return false;            }            else if(pwd =="888888")            {                msg = "用户名错误";                return false;            }            else            {                msg = "两者错误";                return false;            }                   }    }}