python核心编程-函数-装饰器

#!/usr/bin/env python
# -*- coding: UTF-8 -*-

from time import ctime,sleep

def tsfunc(func):
'''装饰器'''
def wrappedFunc():
print '[%s] %s() called' % (ctime(),func.__name__)
return func()
return wrappedFunc

@tsfunc
def foo():
pass

foo()
sleep(4)

for i in range(3):
sleep(1)
foo()

D:\Python27\test>func5.py
[Tue Dec 01 22:29:50 2015] foo() called
[Tue Dec 01 22:29:55 2015] foo() called
[Tue Dec 01 22:29:56 2015] foo() called
[Tue Dec 01 22:29:57 2015] foo() called

D:\Python27\test>