python super用法及原理详解

class Mammal(object):
 def __init__(self, mammalName):
  print(mammalName, 'is a warm-blooded animal.')
  
class Dog(Mammal):
 def __init__(self):
  print('Dog has four legs.')
  super().__init__('Dog')
  
d1 = Dog()

class Animal:
 def __init__(self, animalName):
  print(animalName, 'is an animal.');
class Mammal(Animal):
 def __init__(self, mammalName):
  print(mammalName, 'is a warm-blooded animal.')
  super().__init__(mammalName)

class NonWingedMammal(Mammal):
 def __init__(self, NonWingedMammalName):
  print(NonWingedMammalName, "can't fly.")
  super().__init__(NonWingedMammalName)
class NonMarineMammal(Mammal):
 def __init__(self, NonMarineMammalName):
  print(NonMarineMammalName, "can't swim.")
  super().__init__(NonMarineMammalName)
class Dog(NonMarineMammal, NonWingedMammal):
 def __init__(self):
  print('Dog has 4 legs.');
  super().__init__('Dog')

d = Dog()
print('')
bat = NonMarineMammal('Bat')

➜ super git:(master) ✗ py super_muli.py
Dog has 4 legs.
Dog can't swim.
Dog can't fly.
Dog is a warm-blooded animal.
Dog is an animal.

Bat can't swim.
Bat is a warm-blooded animal.
Bat is an animal.