shangpin_list = [
(‘Iphone‘,4000),
(‘Mac por‘,9000),
(‘python book‘,40),
(‘car‘,14000),
(‘photoshop book‘,60),
(‘food‘,50),
(‘coffee‘,30),
]
while True:
    money = input(‘请输入你的钱数，或者按q结束:\n‘)
    if money.isdigit():
        break
    else:
        print(‘请继续输入正确的钱数‘)
shopping_list = []
if money.isdigit():
    money = int(money)
    while True:
        for index,item in enumerate(shangpin_list):
            print(index,item)
        user_select = input(‘选择你需要的商品编号，或者按q结束:\n‘)
        if user_select.isdigit():
            user_select = int(user_select)
            if user_select < len(shangpin_list) and user_select >=0:
                p_item = shangpin_list[user_select]
                if p_item[1] <= money:
                    shopping_list.append(p_item)
                    money -= p_item[1]
                    print("将%s添加到购物车中，您当前的余额为\033[31;1m%s\033[0m "%(p_item,money))
                else:
                    print("\033[41;1m你的余额只剩[%s]啦，还买个毛啊\033[0m"%money)
            else:
                print(‘无效的选择,商品不存在‘)
        elif user_select == ‘q‘:
            print("-----------------已购商品列表-----------------")
            for p in shopping_list:
                print(p)
            print(‘你的余额：‘,money)
            exit()