#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/1/14 0014 上午 9:11
# @Author  : Aries
# @Site    : 
# @File    : 函数的应用.py
# @Software: PyCharm Community Edition


def func():
    def inner():
        print('hello world')
    return inner
print(func())
ret = func()
ret()
print(ret())
