装饰器的应用-装饰器带参数和不带参数

#!/usr/bin/env python
#encoding: utf-8
def start_info():
    print ('电视剧开头曲.......')
    print ('开始唱歌.......')
def end_info():
    print ('电视剧结束曲.......')

def filter(start_info,end_info): #接收俩函数
    def outer(main_fun): #接收装饰的函数
        def app(*argv,**kwargs): #接收装饰的函数的参数
            print('******************************')
            start_info()
            main_fun(*argv,**kwargs)#接收装饰的函数的参数
            end_info()
            print('******************************')
        return app
    return outer
#先把函数传进去，然后在用里面的函数装饰
#传函数的装饰器必须有三个def ,第一个是接受函数，第二个是装饰函数的，返回第三个函数对象
# 把需要装饰的函数重新定义，然后调用调用
#1: filter(start_info,end_info):
#2: @outer ->  one_info = outer(one_info)
@filter(start_info,end_info) #这里传入俩个函数
def one_info(name,info):
    print ('this is one')
    print('wolcome to tv %s .......' % (name))
    print('wolcome to tv %s .......' % (info))

@filter(start_info,end_info)
def two_info(name,info):
    print('this is two')
    print('wolcome to tv %s .......' % (name))
    print('wolcome to tv %s .......' % (info))

@filter(start_info,end_info)
def three_info(name,info):
    print('this is three')
    print('wolcome to tv %s .......' % (name))
    print('wolcome to tv %s .......' % (info))

if __name__ == "__main__":
    print('三国演义三部曲开始。。。。。。。。')
    print('第一部。。。。。。。。。。。。。。')
    one_info('三国电视剧第一部', '三国大战')

    print('第二部。。。。。。。。。。。。。。')
    two_info('三国电视剧第二部', '三国英雄')

    print('第三部。。。。。。。。。。。。。。')
    three_info('三国电视剧第三部', '三国鼎力')

#!/usr/bin/env python
#encoding: utf-8
def start_info():
    print ('电视剧开头曲.......')
    print ('开始唱歌.......')
def end_info():
    print ('电视剧结束曲.......')

def outer(main_fun): #接收装饰的函数
    def app(*argv,**kwargs): #接收装饰的函数的参数
        print('******************************')
        start_info()
        main_fun(*argv,**kwargs)#接收装饰的函数的参数
        end_info()
        print('******************************')
    return app

#1: @outer ->  one_info = outer(one_info)
@outer
def one_info(name,info):
    print ('this is one')
    print('wolcome to tv %s .......' % (name))
    print('wolcome to tv %s .......' % (info))

@outer
def two_info(name,info):
    print('this is two')
    print('wolcome to tv %s .......' % (name))
    print('wolcome to tv %s .......' % (info))

@outer
def three_info(name,info):
    print('this is three')
    print('wolcome to tv %s .......' % (name))
    print('wolcome to tv %s .......' % (info))

if __name__ == "__main__":
    print ('三国演义三部曲开始。。。。。。。。')
    print ('第一部。。。。。。。。。。。。。。')
    one_info('三国电视剧第一部','三国大战')

    print('第二部。。。。。。。。。。。。。。')
    two_info('三国电视剧第二部','三国英雄')

    print('第三部。。。。。。。。。。。。。。')
    three_info('三国电视剧第三部','三国鼎力')