# -*- coding: utf-8 -*-"""Created on Tue Apr 25 15:27:15 2017@author: buyizhiyou"""'''不带参数的装饰器,装饰器在原函数基础上加上了一些额外的功能'''def log(fun):    def wrapper(*args,**kw):        print('call %s () ' % fun.__name__)        return fun(*args,**kw)    return wrapper        @log  def hello():    print("hello world") hello()'''带参数的装饰器'''def log2(text):    def dec(fun):        def wrapper(*args,**kw):            print('%s %s()'%(text,fun.__name__))            return fun(*args,**kw)        return wrapper    return dec    @log2('excute')def hello():    print("hello world")    hello()