2018-12-27作业2

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { Console.WriteLine("继续吗？(y/n)"); string b = Console.ReadLine(); try { if (b == "y") { } if (b == "n") { Console.WriteLine("系统退出谢谢使用"); } } catch { Console .WriteLine ("输入有误请重新输入"); } Console.WriteLine("*****欢迎进入奖客系统*****"); Console.WriteLine("\t1.注册"); Console.WriteLine("\t2.登录"); Console.WriteLine("\t3.抽奖"); Console.WriteLine("**************************"); int a = Convert.ToInt32(Console.ReadLine()); try { if (a == 1) { Console.WriteLine("请选择菜单{0}",a); Console.WriteLine("[奖客富翁系统>注册]"); } if (a == 2) { Console.WriteLine("请选择菜单{0}",a); Console.WriteLine("[奖客富翁系统>登录]"); } if (a == 3) { Console.WriteLine("请选择菜单{0}",a); Console.WriteLine("[奖客富翁系统>抽奖]"); } } catch { Console.WriteLine("输入有误请重新输入"); } Console.ReadKey (); } } }