How to use the decorator to count the time spent by python

Editor to share with you how python uses decorator statistics function time-consuming, I believe that most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to know it!

Decorator

The decorator is a function that decorates the function, which can add new functions to the function without changing the function source code and the way the function is called. Most of the time, statistical functions are time-consuming and can be implemented using decorators.

Import timedef get_time (f): def inner (* arg,**kwarg): s_time = time.time () res = f (* arg) * * kwarg) e_time = time.time () print ('time: {} seconds' .format (e_time-s_time)) return res return inner@get_timedef test (): time.sleep (2) # Simulation run 2stest () output: time: 2.000781536102295 seconds or more is all the content of the article "how python uses decorator statistics functions" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!