Python3装饰器之运行时间

 1 def timer(function):
 2     """
 3     装饰器函数timer
 4     :param function:想要计时的函数
 5     :return:
 6     """
 7 
 8     def wrapper(*args, **kwargs):
 9         time_start = time.time()
10         res = function(*args, **kwargs)
11         cost_time = time.time() - time_start
12         print("【%s】运行时间：【%s】秒" % (function.__name__, cost_time))
13         return res
14 
15     return wrapper
16 
17 
18 @timer
19 def main():
20     time.sleep(1)
21 
22 
23 if __name__ == ‘__main__‘:
24     main()