static void Main(string[] args)
{
OrderItem order1_item1 = new OrderItem("bag", 2, 200);
OrderItem order1_item2 = new OrderItem("socks", 3, 10);
OrderItem order1_item3 = new OrderItem("pants", 2, 100);
OrderItem order1_item4 = new OrderItem("shoes", 1, 105);
OrderItem order1_item5 = new OrderItem("hat", 3, 15);
OrderItem order2_item1 = new OrderItem("bag", 1, 200);
OrderItem order2_item2 = new OrderItem("socks", 5, 10);
OrderItem order2_item3 = new OrderItem("pants", 5, 100);
OrderItem order2_item4 = new OrderItem("shoes", 2, 105);
OrderItem order2_item5 = new OrderItem("hat", 3, 15);
OrderItem order3_item1 = new OrderItem("bag", 3, 200);
OrderItem order3_item2 = new OrderItem("socks", 5, 10);
OrderItem order3_item3 = new OrderItem("pants", 4, 100);
OrderItem order4_item1 = new OrderItem("bag", 3, 200);
OrderItem order4_item2 = new OrderItem("socks", 5, 10);
OrderItem order4_item3 = new OrderItem("pants", 4, 100);
Order order1 = new Order("X010101", "000001");
Order order2 = new Order("X001100", "000001");
Order order3 = new Order("X001101", "000002");
Order order4 = new Order("X001103", "000004");
order1.AddOrderItem(order1_item1);
order1.AddOrderItem(order1_item1);
order1.AddOrderItem(order1_item2);
order1.AddOrderItem(order1_item3);
order1.AddOrderItem(order1_item4);
order1.AddOrderItem(order1_item5);
order2.AddOrderItem(order2_item1);
order2.AddOrderItem(order2_item2);
order2.AddOrderItem(order2_item3);
order2.AddOrderItem(order2_item4);
order2.AddOrderItem(order2_item5);
order3.AddOrderItem(order3_item1);
order3.AddOrderItem(order3_item2);
order3.AddOrderItem(order3_item3);
order4.AddOrderItem(order4_item1);
order4.AddOrderItem(order4_item2);
order4.AddOrderItem(order4_item3);
OrderService orderService = new OrderService();
orderService.AddOrder(order1);
orderService.AddOrder(order1);
orderService.AddOrder(order2);
Console.WriteLine();
Console.WriteLine("订单添加后排序：");
orderService.OrderSort();
Console.WriteLine();
Console.WriteLine("订单查询：");
orderService.CheckOrderID("X010101");
Console.WriteLine();
Console.WriteLine("订单查询：");
orderService.CheckOrderCardID("000001");
Console.WriteLine();
Console.WriteLine("订单修改后排序：");
orderService.AlertOrder(order1, order3);
orderService.OrderSort();
Console.WriteLine();
Console.WriteLine("订单修改：");
orderService.AlertOrder(order4, order1);
Console.WriteLine();
Console.WriteLine("订单删除后排序：");
orderService.DeleteOrder(order2);
orderService.OrderSort();
Console.WriteLine();
Console.WriteLine("订单删除：");
orderService.DeleteOrder(order4);
orderService.Export("D:/order.xml");
Console.WriteLine();
orderService.DeleteOrder(order1);
orderService.DeleteOrder(order2);
Console.WriteLine();
orderService.OrderSort();
Console.WriteLine();
orderService.Import("D:/order.xml");
Console.WriteLine();
orderService.OrderSort();
}