Pyhon Learning Notes Inheritance of classes in 2:python

Code: Class A (): def Add (self,a,b): return A+bclass B (A): Def sub (self,a,b): Return A-bprint (b (). Add (4,5) )

Results:

Python 3.5.2 (V3.5.2:4DEF2A2901A5, June, 22:18:55) [MSC v.1900-bit (AMD64)] on Win32type "copyright", "credits" or "license ()" For more information.>>> ======================= restart:d:/selenium/test/5.py ============== =========9>>>

Analysis: Method exists in parent Class A: Add ()

Subclass B Inherits parent Class A through B (a)

You can therefore use the Add method in a parent class directly

Pyhon Learning Notes Inheritance of classes in 2:python