static void Main(string[] args) { Order h = new Order(); bool a = true; while (a) { Console.WriteLine("请选择你需要执行的功能:"); Console.WriteLine("1.建立订单链表"); Console.WriteLine("2.添加订单"); Console.WriteLine("3.显示订单"); Console.WriteLine("4.根据订单号查询订单"); Console.WriteLine("5.删除订单"); Console.WriteLine("6.修改订单"); Console.WriteLine("7.退出"); string b = Console.ReadLine(); int c = Convert.ToInt32(b); switch (c) { case 1: OrderService.CreatLink(h, 1); break; //第二个参数设置初始订单的个数 case 2: OrderService.AddOrder(h); break; case 3: OrderService.ShowOrder(h); break; case 4: OrderService.SearchOrder(h, "002"); break; case 5: OrderService.DeleteOrder1(h, "001"); break; //删除订单的订单号为001,可以自己修改 case 6: OrderService.ModifyOrder(h, "001"); break; case 7: a = false; break; } } }