/// <summary>
/// 采用简单工厂来计算折扣率
/// </summary>
/// <param name="input">控制台输入的打折方式</param>
/// <returns>返回应付现金</returns>
public DiscountFather GetDis(string input)
{
DiscountFather dis = null;
switch (input)
{
case "1":
return(dis = new NoDiscount()); break;
case "2":
return(dis = new Discount2(0.9)); break;
case "3":
return(dis = new Discount3(500, 100)); break;
}
return(dis);
}
/// <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);
}
