装饰器

#Author：Kevin_hou

import  time
def 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 is %s" %(stop_time-start_time))
    return deco

@timer
def test1():
    time.sleep(3)
    print('in the test')

@timer
def test2():
    time.sleep(3)
    print('in the test2')
test1()
test2()