python装饰器小例子

import timedef timer(func):  #timer(test1)  func=test1    def deco(*args,**kwargs):        start_time=time.time()        func(*args,**kwargs)        stop_time=time.time()        print("the func run time %s" %(stop_time-start_time))    return deco@timer  #test1=timer(test1)def test1():    time.sleep(3)    print("in the test1")@timerdef test2(name,age):    time.sleep(2)    print("in the test2" ,name,age)test1()test2("joan",5)输出结果：

in the test1
the func run time 3.0043931007385254
in the test2 joan 5
the func run time 2.0034029483795166

来源：http://www.cnblogs.com/joangaga/p/7107243.html