static void Main(string[] args)
{
OrderService orderService = new OrderService();
int flag = 0;
while (true)
{
Console.WriteLine("请选择需要执行的操作（输入数字）：");
Console.WriteLine("1.添加新订单");
Console.WriteLine("2.删除订单");
Console.WriteLine("3.查询订单");
Console.WriteLine("4.修改订单");
Console.WriteLine("5.查看订单列表");
Console.WriteLine("6.退出");
try
{
flag = Int32.Parse(Console.ReadLine());
if (flag < 1 || flag > 6)
{
throw new OrderException();
}
else
{
switch (flag)
{
case 1:
orderService.AddOrder();
break;
case 2:
orderService.DeleteOrder();
break;
case 3:
orderService.Search();
break;
case 4:
orderService.EditOrder();
break;
case 5:
orderService.DisplayOrderList();
break;
case 6:
return;
}
}
}
catch (Exception)
{
Console.WriteLine("输入有误！");
}
}
}