import time
def timer(func):
        def warpper(*args,**kwargs):
            start_time = time.time()
            func()
            stop_time = time.time()
            print("the func run time is %s" % (stop_time-start_time))
        return warpper
@timer  #timer(test1)
def test1():
    time.sleep(3)
    print("in the test1")
test1()