product_list=[["iphone",],["苹果电脑",],["衣服",],["wine",]]

shopping_list=[]

salary = input("请输入你的工资：")

if salary.isdigit():

    salary= int(salary)

    while True:

        for index,item in enumerate(product_list):

           # print(product_list.index(item),item)

            print(index,item)

        user_choice = input("选择要买吗：") #商品编号

        if user_choice.isdigit():

            user_choice = int(user_choice)

            if user_choice < len(product_list) and user_choice >=:

                p_item=product_list[user_choice]

                if p_item[] <= salary: #代表买的起商品

                    shopping_list.append(p_item)#把商品加入购物车列表

                    salary -=p_item[] #当前扣除商品的余额

                    print("Added %s into shopping cart,your current balance is \033[31;1m%s\033[0m元" %(p_item,salary))

                else:

                    print("\033[34;1m你的余额只剩[%s],无法购买此商品！\033[0m" %(salary))

            else:

                print("\033[34;1m你输入的商品编号不存在，请重新输入：\033[0m") #编号输出超过len(product_list)长度，提示错误

        elif user_choice == 'q':

            print('--------shopping_list----------')

            for p in shopping_list:

                print(p)

            print("已经购买的商品有：",shopping_list[:])

            print("your current balance is \033[31;1m%s\033[0m元" %(salary))

            exit()

        else:

            print("invalid option")