Python Class: Object-oriented advanced programming multiple inheritance

Inheritance: The purpose for which subclasses can extend functionality by inheriting parent class information from subclasses

Multiple inheritance: Inheriting multiple classes through subclasses

One, multiple inheritance category

Examples of applying Liaoche:

Https://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/ 0013868200511568dd94e77b21d4b8597ede8bf65c36bcd000

• Dog-Dogs;

• Bat-bat;

• Parrot-Parrot;

• Ostrich-Ostrich.

  
  

By Lactation and birds:

By running and flying points:

Total:

Program:

#!/usr/bin/python
#-*-Coding:utf-8-*-

Class Animal (object):
Pass

# Big class:
Class mammal (Animal):
Pass

Class Bird (Animal):
Pass

#功能
Class Runnable (object):
def run (self):
Print (' Running ... ')

Class Flyable (object):
Def fly (self):
Print (' Flying ... ')

# Various animals:
Class Dog (Mammal, Runnable):
Pass

Class Bat (Mammal, flyable):
Pass

Class Parrot (Bird, flyable):
Pass

Class Ostrich (Bird, Runnable):
Pass

Dog = Dog ()
Dog.run ()

Running Result: Running ...

Second, multiple inheritance two categories:Mixin

Except for large classes, other inherited classes, mixin is ready.

Program:

#!/usr/bin/python
#-*-Coding:utf-8-*-

Class Animal (object):
Pass

# Big class:
Class mammal (Animal):
Pass

Class Bird (Animal):
Pass

#功能
Class Runnablemixin (object):
def run (self):
Print (' Running ... ')

Class Flyablemixin (object):
Def fly (self):
Print (' Flying ... ')

# Various animals:
Class Dog (Mammal, runnablemixin):
Pass
Class Bat (Mammal, flyablemixin):
Pass
Class Parrot (Bird, flyablemixin):
Pass
Class Ostrich (Bird, runnablemixin):

Dog = Dog ()
Dog.run ()

Running Result: Running ...

Finally found that there is no difference between a class and two ... Tease me ... Mask it and look back later.

Python Class: Object-oriented advanced programming multiple inheritance