我有以下情况,我有不同类型的销售算法来计算销售价格. FixedSaleStrategy不需要basePrice参数,而所有其他策略实现都需要它.有没有一种避免这种冗余参数的好方法？
public abstract class SalesStrategy
{
public abstract double GetPrice(double basePrice,double saleAmount);
}
public class AmountOffSale : SalesStrategy
{
public override double GetPrice(double basePrice,double salesAmount)
{
return basePrice - salesAmount;
}
}
public class FixedPriceSale : SalesStrategy
{
public override double GetPrice(double basePrice,double salesAmount)
{
return salesAmount;
}
}
