python购物车

"""
根据以下数据结构：
goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美食", "price": 998},
......
]
实现功能要求：
1、启动程序后，让用户输入工资，然后进入循环，打印商品列表和编号

2、允许用户根据商品编号选择商品

3、用户选择商品后，检测余额是否够，够就直接扣款，并加入购物车， 不够就提醒余额不足

4、可随时退出，退出时，打印已购买商品和余额

"""
goods = [
    {"name": "电脑", "price": 1999},
    {"name": "鼠标", "price": 10},
    {"name": "游艇", "price": 20},
    {"name": "美食", "price": 998}
]
user_input = int(input("输入工资>>>：").strip())
choic = []
buy_goods = []
while True:

    for index, item in enumerate(goods, 1):
        print(index, item)
        choic.append(index)
    goods_num = int(input("请输入商品编号>>>:"))
    if goods_num in choic:
        if goods[goods_num - 1]['price'] < user_input:
            print("%s成功加入购物车！" % goods[goods_num - 1]['name'])
            user_input = user_input - goods[goods_num - 1]['price']
            buy_goods.append(goods[goods_num - 1]['name'])
            print("余额：%s" % user_input)
        else:
            print("余额不足！")
            exit('已购商品:%s,余额：%s' % (buy_goods, user_input))
    else:
        print("输入有误")