static void Main(string[] args) { OrderService orderService = new OrderService(); //添加订单 orderService.InsertOrder(); //查找订单 orderService.FindOrder1(); //移除订单 try { orderService.DelOrder(); } catch (MyException e) { Console.WriteLine("MyException:{0}", e.Message); orderService.DelOrder(); } //修改订单 try { orderService.ChangeOrder(); } catch (MyException e) { Console.WriteLine("MyException:{0}", e.Message); orderService.ChangeOrder(); } //遍历订单 Console.WriteLine("订单号 客户 品类 总价" + "\n"); foreach (Order x in orderService.list) { Console.WriteLine(x.card + " " + x.name + " " + x.series + " " + x.prize); } }