Python多重继承的方法解析执行顺序实例分析

class A:
  def say(self):
    print("A Hello:", self)
class B(A):
  def eat(self):
    print("B Eating:", self)
class C(A):
  def eat(self):
    print("C Eating:", self)
class D(B, C):
  def say(self):
    super().say()
    print("D Hello:", self)
  def dinner(self):
    self.say()
    super().say()
    self.eat()
    super().eat()
    C.eat(self)

> d = D()
> d.eat()
B Eating: <__main__.D object at 0x7fb90c627f60>
> C.eat(d)
C Eating: <__main__.D object at 0x7fb90c627f60>

> D.__mro__
(<class '__main__.D'>, <class '__main__.B'>, <class '__main__.C'>, <class 'object'>)
> d = D()
> d.dinner()
A Hello: <__main__.D object at 0x7fb90bd7eb70>
D Hello: <__main__.D object at 0x7fb90bd7eb70>
A Hello: <__main__.D object at 0x7fb90bd7eb70>
B Eating: <__main__.D object at 0x7fb90bd7eb70>
B Eating: <__main__.D object at 0x7fb90bd7eb70>
C Eating: <__main__.D object at 0x7fb90bd7eb70>