static void Main(string[] args) { OrderService one = new OrderService(); Order first = new Order("bread", 100, 10000, "yunianlin", "001");//参数依次为:商品名称,数量,价格,买家姓名,订单号 Order second = new Order("milk", 10, 100000, "yu", "030"); Order third = new Order("cake", 20, 200000, "wang", "059"); one.setList(first);//添加订单 one.setList(second); one.setList(third); one.showList(1); //输入位置值,展示订单 one.findOrder("yunianlin"); //查询订单,输入买家名得到位置值 one.findOrder("milk"); //查询订单,输入商品名得到位置值 one.findMoney(10000); //查询订单,输入价格,得到大于该价格的订单的位置值 }