Python implementation class static variable usage instance, python static

Python implementation class static variable usage instance, python static

This article describes the usage of static variables in python classes. Share it with you for your reference. The specific analysis is as follows:

Static variables are used to implement a static queue in the class. arrays are used here. data inserted into the queue at any time is not directly related to the instance of the class.

_ Author _ = 'admin' class CaptchaImage: def queue (self, arr = list (): return arr def InsertCode (self, code): self. queue (). append (code) if _ name __= = '_ main _': c = CaptchaImage () c. insertCode (1) B = CaptchaImage () B. insertCode (2) print (B. queue () print (c. queue ())

The output result of code execution is:

[1, 2] [1, 2]

I hope this article will help you with Python programming.