python-购物车程序

程序：购物车程序需求:启动程序后，让用户输入工资，然后打印商品列表允许用户根据商品编号购买商品用户选择商品后，检测余额是否够，够就直接扣款，不够就提醒可随时退出，退出时，打印已购买商品和余额''''''while True:    salary = int(input("请输入您的工资："))    info =     ____________________商品信息____________________    1.IPhone 5000    2.sanxing 4000    3.IPad Pro 3000    4.bluetooth 1000        print(info)    shopnumber = int(input("输入商品编号："))    shopcost = [5000, 4000, 3000, 1000]    if salary >= shopcost[shopnumber]:        print("你已购买此商品，已自动从你账户扣除")    else:        print("对不起，你的余额已不足！")'''product_list = [    ("IPhone", 5000),    ("mac pro", 8900),    ("bick", 800),    ("watch", 10600),    ("python book", 120),]shopping_list = []salary = input("input your salary:")if salary.isdigit():    salary = int(salary)    while True:        for index,item in enumerate(product_list):            print(index,item)        '''        for item in product_list:            print(product_list.index(item),item)            '''        user_choice = input("input the number of your choice:")        #输入的是商品序号        if user_choice.isdigit():            user_choice = int(user_choice)            # 输入的是存在的商品序号            if user_choice <len(product_list) and user_choice >= 0:                p_item = product_list[user_choice]                if p_item[1] <= salary:#买的起                    shopping_list.append(p_item)                    salary -= p_item[1]                    print("Added %s into your car,your courrent balance is \033[31;1m%s\033[0m"%(p_item,salary))                else:#买不起                    print("\033[41;1m你的余额还剩%s是，请充值！\033[0m" % salary)            # 输入的商品不存在            else:                print("the product of you input is not exit,place input again!")        #用户需要退出的操作        elif user_choice == "q":            for p in shopping_list:                print(p)            print("your courrent balance is :",salary)            exit()        else:            print("input error, plase input again!")