static void Main(string[] args)
{
Console.WriteLine("---订单管理系统---");
string operate = "";
while (operate.ToUpper() != "E")
{
Console.WriteLine(@"请选择您的操作:
查询订单-Q 添加订单-A 更新订单-U 删除订单-D 退出-E");
operate = Console.ReadLine();
switch (operate)
{
case "Q":
DoQuery();
break;
case "A":
DoAdd();
break;
case "U":
DoUpdate();
break;
case "D":
DoDelete();
break;
default:
operate = "E";
break;
}
}
service.Close();
}
