static void Main(string[] args)
{
OrderService ordService = new OrderService();
Console.WriteLine("输入你想建立的订单数：");
int n1 = Convert.ToInt32(Console.ReadLine());
int i = 0;
while (i < n1)
{
Console.WriteLine("输入下单用户名：");
string c = Console.ReadLine();
Console.WriteLine("输入订单明细数目：");
int n2 = Convert.ToInt32(Console.ReadLine());
List <OrderItem> list = new List <OrderItem>();
int itemId = 0;
while (itemId < n2)
{
Console.WriteLine("输入商品名称：");
string n = Console.ReadLine();
Console.WriteLine("输入该商品价格：");
int p = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("输入购买数量：");
int num = Convert.ToInt32(Console.ReadLine());
ordService.addOrderItem(n, p, itemId, num);
itemId++;
}
ordService.addOrder(i, c, list);
i++;
}
Console.WriteLine("请输入你接下来想进行的操作：");
Console.WriteLine("1:排序,2:删除订单，3：修改订单");
string choice = Console.ReadLine();
switch (choice)
{
case "1":
ordService.SortOrder();
break;
case "2":
Console.WriteLine("请输入你想删除的订单序号：");
int id1 = Convert.ToInt32(Console.ReadLine());
ordService.deleteOrder(id1);
break;
case "3":
Console.WriteLine("请输入你想修改的订单序号：");
int id2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("输入下单用户名：");
string c = Console.ReadLine();
Console.WriteLine("输入订单明细数目：");
int n2 = Convert.ToInt32(Console.ReadLine());
List <OrderItem> list = new List <OrderItem>();
int itemId = 0;
while (itemId < n2)
{
Console.WriteLine("输入商品名称：");
string n = Console.ReadLine();
Console.WriteLine("输入该商品价格：");
int p = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("输入购买数量：");
int num = Convert.ToInt32(Console.ReadLine());
ordService.addOrderItem(n, p, itemId, num);
itemId++;
}
ordService.changeOrder(id2, c, ordService.orderItemList);
break;
default:
break;
}
}