Python___语法糖

import time

def timer(func):

def deco():

start_time=time.time()

func()

stop_time=time.time()

print("the func run time is %s" %(stop_time-start_time))

return deco

def test1():

time.sleep(3)

print('in the test1 !!!!!')

print(timer(test1))

test1=timer(test1)

test1()

执行结果:

.deco at 0x005F5270>

in the test1 !!!!!

the func run time is 3.0

............................................................................

print(timer(test1))

的执行结果为:

.deco at 0x005F5270>

test1=timer(test1)

test1()

的执行结果为:

in the test1 !!!!!

the func run time is 3.0