Python_练习_24.3.28

class ShoppingCart:
    def __init__(self):
        self.items = []

    def add_items(self, item):
        if item in items_price:
            self.items.append(item)
            print(f"{item}已添加到购物车")
        else:
            print(f"没有{item}商品")

    def del_items(self, item):
        if item in self.items:
            self.items.remove(item)
            print(f"{item}已从购物车中删除")
        else:
            print(f"{item}不在购物车中")

    def display_items(self):
        if self.items:
            print("购物车中的物品：")
            for item in self.items:
                print(item)
        else:
            print("购物车为空")

    def get_total_price(self):
        total_price = 0
        for item in self.items:
            total_price += items_price[item]
        return total_price

    def get_item_num(self):
        return len(self.items)


items_price = {
    "苹果": 5,
    "香蕉": 3,
    "橙子": 2,
    "梨": 4,
    "西瓜": 1
}

cart = ShoppingCart()
cart.add_items("苹果")
cart.add_items("橙子")
cart.add_items("草莓")
cart.add_items("梨")
cart.add_items("西瓜")
cart.del_items("香蕉")
cart.add_items("橙子")
cart.del_items("橙子")
cart.display_items()
print("购物车中的物品数量：", cart.get_item_num())
print("购物车中的物品总价：", cart.get_total_price())