2018-12-27

int a = 0;
string b = "y";
while (b == "y")
{
Console.WriteLine("*******欢迎进入富翁系统********");
Console.WriteLine(" 1.注册");
Console.WriteLine(" 2.登陆");
Console.WriteLine(" 3.抽奖");
Console.WriteLine("********************************");
Console.WriteLine("请选择菜单：");
a = Convert.ToInt32(Console.ReadLine());
switch (a)
{
case 1:
Console.WriteLine("奖客富翁系统>注册");

                    break;
                case 2:
                    Console.WriteLine("奖客富翁系统>登陆");
                    break;
                case 3:
                    Console.WriteLine("奖客富翁系统>抽奖");
                    break;
            }
            Console.WriteLine("继续使用该系统吗?   y/n");
            b = Console.ReadLine();
            switch (b)
            {
                case "y":
                    Console.WriteLine("");
                    break;
                case "n":
                    Console.WriteLine("退出系统，谢谢使用。");
                    break;


            }
        }
        Console.ReadKey();