#带参数的装饰器

#500个函数

import time

FLAGE = True

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 = timmer_out(FLAGE)

#wahaha = timmer(wahaha)        #@timmer

@timmer_out(FLAGE)

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