public override uint GetPrice()
{
double basePrice = BookPrice.GetPrice();
#if DEBUG
WriteLine("UsedBookSale : GetPrice");
#endif
var price = basePrice * (1 - DiscountRate);
return((uint)price);
}
public override uint GetPrice()
{
// throw new NotImplementedException();
var price = BookPrice.GetPrice();
#if DEBUG
WriteLine("Yes24PointSale : GetPrice");
#endif
// 포인트가 가격보다 작거나 같으면
if (price >= Yes24Point)
{
return(price - Yes24Point);
}
else
{
throw new ArgumentException(message: "사용할 Yes24 포인트가 제품의 가격보다 크다.", paramName: nameof(Yes24Point));
}
}