在子类中重用父类的方法

#在子类派生出新的方法中，重用父类的方法，有两种 ：

 #1。指名道姓的方法（不依赖继承）

  #示例1：

class Hero:
    def __init__(self,Nikname, Life_value, Aggressivity):
        self.Nikname = Nikname
        self.Aggressivity = Aggressivity
        self.Life_value = Life_value
    def attack(self,enemy):
        enemy.Life_value-=self.Aggressivity

class Ruiwen(Hero):
    camd = 'demaciy'
    def attack(self, enemy):
        Hero.attack(self, enemy)  #指名道姓的方式 。此时，即使没有继承父类，此方法依然有效
        print('from Ruiwen is attack')
class Kelun(Hero):
    camd = '猪圈'
    pass
g = Ruiwen('大圣', 100, 30)
r = Kelun('猪八戒', 80, 50)
print(r.Life_value)
g.attack(r)
print(r.Life_value)
#输出：

示例2：

class Hero:
    def __init__(self,Nikname, Life_value, Aggressivity):
        self.Nikname = Nikname
        self.Aggressivity = Aggressivity
        self.Life_value = Life_value
    def attack(self,enemy):
        enemy.Life_value-=self.Aggressivity

class Ruiwen(Hero):
    camd = 'demaciy'
    def __init__(self, Nikname, Life_value, Aggressivity, Weapon):
        # self.Nikname = Nikname
        # self.Life_value = Life_value
        # self.Aggressivity = Aggressivity
        self.Weapon = Weapon
        Hero.__init__(self, Nikname, Life_value, Aggressivity)
    def attack(self, enemy):
        Hero.attack(self, enemy)  #指名道姓的方式 。此时，即使没有继承父类，此方法依然有效
        print('from Ruiwen is attack')
class Kelun(Hero):
    camd = '猪圈'
    pass
g = Ruiwen('大圣', 100, 30, '金箍棒')
print(g.__dict__)

#输出：

 

 #2.super（）   依赖于继承

#示例1：

class Hero:
    def __init__(self,Nikname, Life_value, Aggressivity):
        self.Nikname = Nikname
        self.Aggressivity = Aggressivity
        self.Life_value = Life_value
    def attack(self,enemy):
        enemy.Life_value-=self.Aggressivity

class Ruiwen(Hero):
    camd = 'demaciy'
    def __init__(self, Nikname, Life_value, Aggressivity, Weapon):
        super().__init__(Nikname, Life_value, Aggressivity)
        self.Weapon = Weapon
    def attack(self, enemy):
        print('from Ruiwen is attack')
class Kelun(Hero):
    camd = '猪圈'
    pass
g = Ruiwen('大圣', 100, 30, '金箍棒')
r = Kelun('猪八戒', 80, 50)
g.attack(r)
print(r.Life_value)





示例2：

class Hero:
    def __init__(self,Nikname, Life_value, Aggressivity):
        self.Nikname = Nikname
        self.Aggressivity = Aggressivity
        self.Life_value = Life_value
    def attack(self,enemy):
        enemy.Life_value-=self.Aggressivity

class Ruiwen(Hero):
    camd = 'demaciy'
    def __init__(self, Nikname, Life_value, Aggressivity, Weapon):
        super().__init__(Nikname, Life_value, Aggressivity)
        self.Weapon = Weapon
    def attack(self, enemy):
        print('from Ruiwen is attack')
class Kelun(Hero):
    camd = '猪圈'
    pass
g = Ruiwen('大圣', 100, 30, '金箍棒')
r = Kelun('猪八戒', 80, 50)
g.attack(r)
print(r.Life_value)

#输出：

 

class A:
    def f1(self):
        print('from A')
        super().f1()
class B:
    def f1(self):
        print('from B')

class C(A, B):
    pass
c = C()
c.f1()
print(C.mro())

#输出：

#这里不要以为super在A里面 且A为比较顶层，会找不到B里面的f1 这样想是错误的，应当先明白f1是基于谁去寻找的，它是C的实例化对象c去调用的f1

#然后在A里面找到了f1打印了f1里面的内容，但是随之又遇见super，此时super会基于C的调用f1接着向上从A函数属性里面按照广度查找的方式继续按照mro列表继续向后找，直到

找到打印为止