简单实现python购物车 ----小白学习手记1

shop_list = [
    ('iphone',8888),
    ('iMac Pro',10888),
    ('Tesila',200000),
    ('bike',1020),
    ('mibook',1001)
]

shopping_list = []

salary = input('请输入你的工资>>>:')
if salary.isdigit():
    salary = int(salary)
    while True:
        for index,item in enumerate(shop_list,1):
            print(index,item)
        user_choice = input('请输入要选择的商品序号>>>:')
        if user_choice.isdigit():
            user_choice = int(user_choice)
            if user_choice <= len(shop_list) and user_choice > 0:
                p_item = shop_list[user_choice -1 ]
                shopping_list.append(p_item)
                if p_item[1] <= salary:
                    salary -= p_item[1]
                    print('你购买的商品为%s，剩余金额为%s'%(p_item,salary))
        elif user_choice == 'q':
            for l_item in shopping_list:
                print('---shopping list---',l_item,'
还剩%s$'%(salary))

                break
        else:
            print('输入有错误，请重新输入!')
else:
    print('输入有错误，请重新输入!')