类-购物车

def solve():
    class ShoppingCart:
        def __init__(____):
            self.items = {}
        def add_item(____):
            self.items[name] = price
        def get_total(____):
            return sum(self.items.values())
    cart = ShoppingCart()
    cart.add_item(____)
    cart.add_item(____)
    print(cart.get_total())