python class实现模拟购物车代码，python购物车,<python clas

python class实现模拟购物车代码，python购物车,
<python class实现模拟购物车代码>1.[代码][Python]代码

class ShoppingCart(object):    """Creates shopping cart objects    for users of our fine website."""    items_in_cart = {}    def __init__(self, customer_name):        self.customer_name = customer_name    def add_item(self, product, price):        """Add product to the cart."""        if not product in self.items_in_cart:            self.items_in_cart[product] = price            print product + " added."        else:            print product + " is already in the cart."    def remove_item(self, product):        """Remove product from the cart."""        if product in self.items_in_cart:            del self.items_in_cart[product]            print product + " removed."        else:            print product + " is not in the cart."my_cart=ShoppingCart("wangweiwei")my_cart.add_item("apple",12)

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