装饰器 习题

def wapper(func):

    def innner(*args,**kwargs):

        ret=func(*args,**kwargs)

        ret=print(ret+100)

        return ret

    return innner

@wapper

def func(number):

    return int(number)

func(100)

###结果：200

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def wapper(func):

    def innner(*args,**kwargs):

        count=0

        while count<5:

            func(*args,**kwargs)

            count+=1

    return innner

@wapper

def func():

    print("执行")

func()

import time

def wapper(func):

    def inner(*args,**kwargs):

        with open("log",encoding="utf-8",mode="a+") as f:

            structime=time.localtime()

            f.write(f'北京时间：{time.strftime("%Y-%m-%d %H:%M:%S",structime)} 函数名字为：{func.__name__}\n')

        ret=func(*args,**kwargs)

        return ret

    return inner

@wapper

def func():

    print("执行")

func()