python 面向对象的基本概念 快速回顾

Python3 面向对象

https://www.runoob.com/python3/python3-class.html

Python3 数据结构

https://www.runoob.com/python3/python3-data-structure.html

Python3 函数

https://www.runoob.com/python3/python3-function.html