2018-12-27

bool flag=true;
do {
Console.WriteLine("*****欢迎来到富翁抽奖界面*****");
Console.WriteLine("\t1.注册\n\t2.登录\n\t3.抽奖");
Console.WriteLine("******************************");
Console.WriteLine("请选择菜单:");
string vxx = Console.ReadLine();
int num = Convert.ToInt32(vxx);

        switch (num)
        {
            case 1:
                Console.WriteLine("您已经入注册界面");
                break;
            case 2:
                Console.WriteLine("您已经入登入界面");
                break;
            case 3:
                Console.WriteLine("您已经入抽奖界面");
                break;



        }

        Console.Write("继续吗？（yes/no）");
      string answer = Console.ReadLine();
            if(answer=="yes"){flag=true;
            }
            else { flag = false; }
        }while (flag);


            Console.ReadKey();
        }