Python Multiple inheritance

1. Multiple inheritance: (Implements the function of the parent class by inheriting subclasses)

Animal may have different classifications:

Animal------Mammal

------Bird

Animal------Run

------Fly

For each animal dog,cat, parrot may be the first category, or it may inherit the second classification at the same time. The dumb way is to define Runmammal,flymammal,flybird. But when more classifications are needed, it is obviously unreasonable. ------Multiple Inheritance

First, the main class level

　　

class Animal (object):     Pass class mammal (Animal):     Pass class Bird (Animal):     Pass

Then, design the function class:

class Run (object):     def Run (self):         Print ('Running')         class Fly (object):     def Fly (self):         Print ('Flying')

Finally, the subclass:

class Dog (mammal,run):     Pass

This enables multiple inheritance, a design method called Mixin.

　

Python Multiple inheritance