public void shoppercar_80off()
{
var product = new Product(100, 50);
var shoppingCar = new ShoppingCar(new Price80Off());
shoppingCar.Counting(product);
shoppingCar = new ShoppingCar(new Price60Off());
shoppingCar.Counting(product);
shoppingCar = new ShoppingCar(new Price70Off());
shoppingCar.Counting(product);
}
public void shoppercar_50off()
{
var product = new Product(100, 50);
Console.WriteLine(ShoppingCar.counting2(product, 0.5m));
}
