#带参数的装饰器

#500个函数

# import time

# FLAGE = False

# def timmer_out(flag):

#     def timmer(func):

#         def inner(*args,**kwargs):

#             if flag:

#                 start = time.time()

#                 ret = func(*args,**kwargs)

#                 end = time.time()

#                 print(end-start)

#                 return ret

#             else:

#                 ret = func(*args, **kwargs)

#                 return ret

#         return inner

#     return timmer

# # timmer = timmer_out(FLAGE)

# @timmer_out(FLAGE)    #wahaha = timmer(wahaha)

# def wahaha():

#     time.sleep(0.1)

#     print('wahahahahahaha')

#

# @timmer_out(FLAGE)

# def erguotou():

#     time.sleep(0.1)

#     print('erguotoutoutou')

# wahaha()

# erguotou()

#多个装饰器装饰一个函数

def wrapper1(func):

    def inner1():

        print('wrapper1 ,before func')

        ret = func()

        print('wrapper1 ,after func')

        return ret

    return inner1

def wrapper2(func):

    def inner2():

        print('wrapper2 ,before func')

        ret = func()

        print('wrapper2 ,after func')

        return ret

    return inner2

def wrapper3(func):

    def inner3():

        print('wrapper3 ,before func')

        ret = func()

        print('wrapper3 ,after func')

        return ret

    return inner3

@wrapper3

@wrapper2

@wrapper1

def f():

    print('in f')

    return '哈哈哈'

print(f())

#记录用户的登录情况

#计算这个函数的执行时间