static void Main(string[] args)
{
OrderService a = new OrderService();
while (true)
{
int key;
Console.WriteLine("1.添加订单 2.查询订单");
key = Convert.ToInt32(Console.ReadLine());
if (key == 1)
{
a.AddOrder();
}
else if (key == 2)
{
int key2 = 0;
Console.WriteLine("1.按ID查询 2.按商品查询 3.按客户查询 4.按支付金额查询");
key2 = Convert.ToInt32(Console.ReadLine());
switch (key2)
{
case 1:
{
Console.WriteLine("输入ID");
a.OrderById(Console.ReadLine());
}
break;
case 2:
{
Console.WriteLine("输入商品名称");
a.OrderByGoods(Console.ReadLine());
}
break;
case 3:
{
Console.WriteLine("输入客户");
a.OrderByCustomer(Console.ReadLine());
}
break;
case 4:
{
Console.WriteLine("输入支付金额");
a.OrderByMoney(Console.ReadLine());
}
break;
default: throw new ArgumentException("没有这个选项");
}
}
else
{
throw new ArgumentException("没有这个选项");
}
}
}