public static void FindOrder()
{
while (true)
{
try
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("**************************查找订单**************************");
Console.WriteLine("1.根据流水号查找 2.查找某天对应所有订单");
Console.WriteLine("3.根据客户名查找对应所有订单 4.根据商品名称查找对应所有订单");
Console.WriteLine("5.返回主页");
int choose = 0;
Choose(ref choose, 1, 5);
int num = 0; //通过其他方式查找的判断num，代表个数
switch (choose)
{
case 1:
int flag = -1; //通过流水号查找的判断falg，-1无，其他值则表示位置
Console.Write("请输入流水号（格式：2018-1-1-1）：");
flag = OrderService.FindOrder(Console.ReadLine());
if (flag == -1)
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("未查找到！");
}
else
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("共查找到1单！");
}
break;
case 2:
Console.Write("请输入日期（格式：20180101）：");
num = OrderService.FindOrder(DateTime.ParseExact(Console.ReadLine(), "yyyyMMdd", System.Globalization.CultureInfo.CurrentCulture));
break;
case 3:
Console.Write("请输入客户名称：");
num = OrderService.FindOrderByClientName(Console.ReadLine());
break;
case 4:
Console.Write("请输入商品名称：");
num = OrderService.FindOrderByProductName(Console.ReadLine());
break;
case 5:
return; //返回主页
}
if (choose != 1 && num > 0)
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("共查找到{0}单！", num);
}
else if (choose != 1 && num == 0)
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("未查找到！");
}
}
catch (Exception e)
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine(e.Message);
Console.WriteLine("失败，请重试！");
}
}
}
