面向对象-继承、重用性

class Parentclass1:
    pass


class ParentClass2:
    pass


class SubClass1(Parentclass1):  # 单继承
    pass


class subClass2(Parentclass1, ParentClass2):  # 多继承
    pass

继承：子类继承父类，可以分为单继承，与多继承。子类继承父类，可以减少重复代码。

class Hero:
    def __init__(self,nickname,life_value,aggresivity):
        self.nickname=nickname
        self.life_value=life_value
        self.aggresivity=aggresivity
    def attack(self,enemy):
        enemy.life_value -= self.aggresivity


class Garen(Hero):
    pass



g1 = Garen('d',29,30)
print(g1.__dict__)
# print(g1.x) # 先在对象这边找，再在对象类找，再在父类找

#属性查找  先在对象这边找，再在对象类找，再在父类找!
class Foo:
    def f1(self):
        print('from Foo.f1')

    def f2(self):
        print('from Foo.f2')
        self.f1()

class Bar(Foo):
    def f1(self):
        print('from Bar.f2')

b = Bar()
b.f2()