public static void Main() { try { Customer customer1 = new Customer(11111111111, "Customer1"); Customer customer2 = new Customer(22222222222, "Customer2"); Goods milk = new Goods(1, "Milk", 69.9); Goods eggs = new Goods(2, "eggs", 4.99); Goods apple = new Goods(3, "apple", 5.59); OrderDetail orderDetails1 = new OrderDetail(1, apple, 8); OrderDetail orderDetails2 = new OrderDetail(2, eggs, 2); OrderDetail orderDetails3 = new OrderDetail(3, milk, 1); Order order1 = new Order("20000317123", customer1); Order order2 = new Order("20000317124", customer2); Order order3 = new Order("20000317125", customer2); order1.AddOrderDetail(orderDetails1); order1.AddOrderDetail(orderDetails2); order1.AddOrderDetail(orderDetails3); //order1.AddOrderDetails(orderDetails3); order2.AddOrderDetail(orderDetails2); order2.AddOrderDetail(orderDetails3); order3.AddOrderDetail(orderDetails3); OrderService os = new OrderService(); os.AddOrder(order1); os.AddOrder(order2); os.AddOrder(order3); Console.WriteLine("GetAllOrders"); List <Order> orders = os.QueryAllOrders(); foreach (Order od in orders) { Console.WriteLine(od.ToString()); } Console.WriteLine(""); Console.WriteLine("GetOrdersByCustomerName:'Customer2'"); orders = os.GetOrdersByCustomerName("Customer2"); foreach (Order od in orders) { Console.WriteLine(od.ToString()); } Console.WriteLine(""); Console.WriteLine("GetOrdersByGoodsName:'apple'"); orders = os.QueryOrdersByGoodsName("apple"); foreach (Order od in orders) { Console.WriteLine(od.ToString()); } Console.WriteLine(""); Console.WriteLine("Remove order(id=2) and qurey all"); os.RemoveOrder("2"); orders = os.QueryAllOrders(); foreach (Order od in orders) { Console.WriteLine(od.ToString()); } Console.WriteLine(""); os.GetOrdersByMoney(30); foreach (Order od in orders) { Console.WriteLine(od.ToString()); } Console.WriteLine(""); //序列化 XmlSerializer xmlser = new XmlSerializer(typeof(List <Order>)); String xmlFileName = "s.xml"; os.Export(os.OrderList, xmlFileName); string s = File.ReadAllText("s.xml"); Console.WriteLine(s); //反序列化 List <Order> orders1 = os.Import(xmlFileName);//as List<Order>; //if (orders1 == null) Console.WriteLine("f**k"); foreach (Order i in orders1) { Console.WriteLine(i); } } catch (Exception e) { Console.WriteLine(e.ToString()); } }