python 购物车

goods_list = [
    {'name': '苹果', 'price': '10'},
    {'name': '香蕉', 'price': '15'},
    {'name': '菠萝', 'price': '20'},
    {'name': '西瓜', 'price': '25'},
    {'name': '葡萄', 'price': '30'},
]
shopping_car = {}
print("欢迎光临小粉嫩水果店！")
money = input("请拿出您的银子：")
if money.isdigit() and int(money) > 0:
    flag = True
    while flag:

        for i, k in enumerate(goods_list):
            print('序号{}, 商品{}, 价格{}'.format(i, k['name'], k['price']))
        choose = input("请输入您选择的序号：")
        if choose.isdigit() and int(choose) < len(goods_list):
            num = input("请输入您要购买商品的个数:")
            if num.isdigit():
                if int(money) > int(goods_list[int(choose)]['price']) * int(num):
                    money = int(money) - int(goods_list[int(choose)]['price']) * int(num)
                    if goods_list[int(choose)]['name'] in shopping_car:
                        shopping_car[goods_list[int(choose)]['name']] = shopping_car[goods_list[int(choose)]['name']] + int(num)
                    else:
                        shopping_car[goods_list[int(choose)]['name']] = int(num)
                    print("购物车中的商品有{}, 您的余额为{}".format(shopping_car, money))
                    print("如果您想离开请按Q或q，欢迎下次光临！")
                else:
                    print("穷鬼，滚去敲代码赚钱！")
                    break
            else:

                print("请输入数字，谢谢！")
        elif choose.upper() == "Q":
            flag = False
            print("您当前的购物车为{}，余额为{}".format(shopping_car, money))

        else:
            print("傻逼，输入数字！！！")