static void Main()
{
OrderDetails First = new OrderDetails(01, "wx1", "Cheese", 1, 10); //设置订单信息
OrderDetails Second = new OrderDetails(02, "wx2", "Bread", 1, 5);
OrderDetails Third = new OrderDetails(03, "wx3", "Milk", 2, 5);
OrderService Oporder = new OrderService();
Oporder.AddOrder(Third); //添加订单
Oporder.DeleteOrder(11); //删除订单
Oporder.ChangeOrder(11, 5); //修改订单
Oporder.SearchOrder2("wx21"); //查找订单
OrderDetails[] arr = { First, Second, Third }; //筛选出订单金额大于1000的
var m = arr.Where(a => a.GoodsPrice > 1000);
Console.WriteLine(m);
var n = from x in arr //按照商品名查找订单
select x.GoodsName;
foreach (string i in n)
{
Console.WriteLine(i);
}
var p = from w in arr //按照顾客名查找订单
select w.CustomerName;
foreach (string c in p)
{
Console.WriteLine(c);
}
}
