/// <summary>
/// 根据用户的选择的打折方式返回一个打折方式
/// </summary>
/// <param name="input">用户的选择</param>
/// <returns>打折对象</returns>
public DiscountFather GetDiscount(string input)
{
DiscountFather dis = null;
switch (input)
{
case "1":
dis = new DiscountNormal();
break;
case "2":
dis = new DiscountRate(0.9);
break;
case "3":
dis = new DiscountRate(0.85);
break;
case "4":
dis = new DiscountGift(50, 300);
break;
case "5":
dis = new DiscountGift(100, 500);
break;
default:
break;
}
return(dis);
}
/// <summary>
/// 跟用户交互的过程
/// </summary>
public void Askbuying()
{
Console.WriteLine("欢迎光临，请问您需要些什么？");
Console.WriteLine("我们有弘基笔记本、三星手机、酱油和香蕉");
string strType = Console.ReadLine();
Console.WriteLine("您需要多少？");
int count = Convert.ToInt32(Console.ReadLine());
// 去仓库取货物
ProductFather[] pros = sh.Shipment(strType, count);
// 计算价格
double cust = GetMoney(pros);
Console.WriteLine("您好，一共{0}元钱", cust);
Console.WriteLine("请选择您的打折方式 1--不打折 2--打九折 3--打85折 4--买300送50 5--买500送100");
string input = Console.ReadLine();
DiscountFather dis = GetDiscount(input);
double totalMoney = dis.GetTotalMoney(cust);
Console.WriteLine("打折后，您应付{0}元", totalMoney);
PrintSumary(pros);
}