Python装饰器基本框架

装饰器示例：

def auth(func):
    def inner(*args, **kwargs):
        # 固定套路，在装饰的函数前做什么
        func(*args, **kwargs)
    return inner


@auth  # 相当于login = auth(login)
def login():
    pass


@auth  # 相当于shopping = auth(shopping)
def shopping():
    pass


@auth  # 相当于pay = auth(pay)
def pay(money, time):
    total_money = money + 1
    pay_time = time
    print(total_money, pay_time)