多个装饰器装饰一个函数

Posted 2021-01-09 Apollo

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# 作者: Apollo
# 邮箱: [e-mail]
# 博客: http://www.zgerji.online/

def wrapper1(func):  # func = f
    def inner1():
        print(\'wrapper1 ,before func\')
        func()
        print(\'wrapper1 ,after func\')
    return inner1

def wrapper2(func):  # func = inner1
    def inner2():
        print(\'wrapper2 ,before func\')
        func()
        print(\'wrapper2 ,after func\')
    return inner2

@wrapper2     # f = wrapper2(f)  里面的f == inner1   外面的f = inner2
@wrapper1     # f = wrapper1(f)  返回inner1    f = inner1
def f():
    print(\'in f\')
f()  # inner2()

# 详解图解文件:多个装饰器装饰一个函数.png