public DiscountFather GetDiscountMethod(int type)
{
DiscountFather discountMethod = null;
switch (type)
{
case 1:
discountMethod = new NormalPrice();;
break;
case 2:
discountMethod = new RatePrice(0.9);
break;
case 3:
discountMethod = new RatePrice(0.85);
break;
case 4:
discountMethod = new Gift(300, 50);
break;
case 5:
discountMethod = new Gift(500, 100);
break;
default:
break;
}
return(discountMethod);
}
public void AskBuying()
{
Console.WriteLine("欢迎光临");
Console.WriteLine("我们有三星笔记本、鸿基笔记本、香蕉和酱油四种商品");
Console.WriteLine("******商品列表：******");
Console.WriteLine("****** 1. Acer 笔记本");
Console.WriteLine("****** 2. SamSung 笔记本");
Console.WriteLine("****** 3. Banana 香蕉");
Console.WriteLine("****** 4. Oil 地沟油");
Console.WriteLine("*********************");
Console.WriteLine("输入序号进行选择：");
string strType = Console.ReadLine();
int a = -1;
bool flag = int.TryParse(strType, out a);
while (!flag)
{
Console.WriteLine("输入有误， 请重新输入");
strType = Console.ReadLine();
flag = int.TryParse(strType, out a);
}
string productName = "";
switch (a)
{
case 1:
productName = "Acer";
break;
case 2:
productName = "SamSung";
break;
case 3:
productName = "Banana";
break;
case 4:
productName = "Oil";
break;
default:
break;
}
Console.WriteLine("您选择的商品类型是 : {0}", productName);
Console.WriteLine("您需要的数量是：");
string numberString = Console.ReadLine();
int number = -1;
bool flag1 = int.TryParse(numberString, out number);
while (!flag1)
{
Console.WriteLine("输入有误， 请重新输入");
numberString = Console.ReadLine();
flag1 = int.TryParse(numberString, out number);
}
Console.WriteLine("您需要的数量是： {0}", number);
Console.WriteLine("正在取货");
List <ProductFather> list = repository.GetProducts(productName, number);
// 计算总价
double totalPrice = GetTotalPrice(list);
Console.WriteLine("总价是: {0}", totalPrice);
Console.WriteLine("打折方式： 1--不打折，2--打九折，3--八五折，4--买300送50，5--买500送100");
string numberString1 = Console.ReadLine();
int number1 = -1;
bool flag2 = int.TryParse(numberString1, out number1);
while (!flag2)
{
Console.WriteLine("输入有误， 请重新输入");
numberString = Console.ReadLine();
flag2 = int.TryParse(numberString, out number1);
}
DiscountFather discountMethod = GetDiscountMethod(number1);
double money = discountMethod.GetTotalPriceByDiscount(totalPrice);
Console.WriteLine("打折后的价格是： {0}", money);
}
