/// <summary>
/// 询问客户需要的商品及数量
/// </summary>
public void AskCustomer()
{
Console.WriteLine("欢迎光临，请问您需要些什么？");
Console.WriteLine("我们有Banana Samsung Computer");
string prodType = Console.ReadLine();
Console.WriteLine("请问你需要多少？");
int count = Convert.ToInt32(Console.ReadLine());
BaseProduct[] prods = prodHouse.Fetch(prodType, count);
double Money = GetPrice(prods);
Console.WriteLine("你一共需要支付" + Money + "元");
Console.WriteLine("请选择你的折扣方式");
Console.WriteLine("\t1--不打折");
Console.WriteLine("\t2--打九折");
Console.WriteLine("\t3--打八五折");
Console.WriteLine("\t4--满300减50");
Console.WriteLine("\t5--满500减100");
//通过简单工厂设计模式获得用户的打折模式
string input = Console.ReadLine();
BaseDiscount dis = GetDiscount(input);
double finalMoney = dis.GetAfterDiscountMoney(Money);
Console.WriteLine("打完折以后的总金额是{0}", finalMoney);
}
/// <summary>
/// 根据用户的输入选择折扣类型
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public BaseDiscount GetDiscount(string input)
{
BaseDiscount dis = null;
switch (input)
{
case "1": dis = new NoDiscount();
break;
case "2": dis = new DiscountRate(0.9);
break;
case "3": dis = new DiscountRate(0.85);
break;
case "4": dis = new DiscountBuyMSendN(300, 50);
break;
case "5": dis = new DiscountBuyMSendN(500, 100);
break;
}
return(dis);
}
