python装饰器

import time

def deco(func):

    def wrapper(*args, **kw):

        start_time = time.time()

        func(*args, **kw)

        end_time = time.time()

        print(‘the function %s runed time is %s‘ % (func.__name__, (end_time - start_time)))

    return wrapper

@deco

def test():

    time.sleep(2)

    print(‘this is test func‘)

test()