static void Main(string[] args) { Order a = new Order(); int price, Number; string Id, Name, Client; bool T = true; while (T) { try { Console.WriteLine("\n请选择您要功能:\n1.添加订单 2.删除订单 3.查询 4.显示订单 \n 其他键退出"); int select = Convert.ToInt32(Console.ReadLine()); if (select == 1) { Console.WriteLine("1.添加订单:"); Console.WriteLine("编号:"); Id = Console.ReadLine(); Console.WriteLine("名称:"); Name = Console.ReadLine(); Console.WriteLine("数量:"); price = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("价格:"); Number = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("客户:"); Client = Console.ReadLine(); OrderService.Add(a.MyOreder, Id, Name, Number, price, Client); Console.WriteLine("\n***完成*** "); } else if (select == 2) { Console.WriteLine("2.删除订单:"); Console.WriteLine("编号:"); Id = Console.ReadLine(); //Console.WriteLine("名称:"); //Name = Console.ReadLine(); //Console.WriteLine("数量:"); //price = Convert.ToInt32(Console.ReadLine()); //Console.WriteLine("价格:"); //Number = Convert.ToInt32(Console.ReadLine()); //Console.WriteLine("客户:"); //Client = Console.ReadLine(); OrderService.Delete1(a.MyOreder, Id); Console.WriteLine("\n***完成*** "); } else if (select == 3) { Console.WriteLine("3.查询:"); Console.WriteLine("编号:"); Id = Console.ReadLine(); //Console.WriteLine("名称:"); //Name = Console.ReadLine(); //Console.WriteLine("数量:"); //price = Convert.ToInt32(Console.ReadLine()); //Console.WriteLine("价格:"); //Number = Convert.ToInt32(Console.ReadLine()); //Console.WriteLine("客户:"); //Client = Console.ReadLine(); OrderService.Search(a.MyOreder, Id); Console.WriteLine("\n***完成*** "); } else if (select == 4) { Console.WriteLine("\n***完成*** \n "); OrderService.ShowForUser(a.MyOreder); } else { Console.WriteLine("*****谢谢使用!*****"); break; } } catch { Console.WriteLine("\n ******请正确输入!******"); } } }