类的继承

"""封装
继承
python2  经典类是按深度优先继承的     Python3  新式类是按广度优先继承的
多态
"""


# class People:  经典类
class People(object):   # 新式类
    def __init__(self, name, age):
        self.name = name
        self.age = age
        self.friends = []

    def talk(self):
        print(‘%s正在说话‘ % self.name)


class Relation(object):
    def make_friends(self, obj):
        print(‘%s正在和%s交朋友‘%(self.name, obj.name))
        self.friends.append(obj)


class Man(People,Relation):
    def __init__(self, name, age, money):       # 对构造函数进行重构
       #People.__init__(self, name, age)        # 父类的构造函数   经典类的写法
        super(Man, self).__init__(name, age)   # 继承父类的参数   新式类的写法
        self.money = money                      # 增加新的功能

    def sleep(self):
        People.talk(self)


class Woman(People,Relation):
    def __init__(self, name):
        self.name = name

    def run(self):
        print(‘%s正在跑‘ % self.name)


m1 = Man(‘li‘, 22, 10)
w1 = Woman(‘zhu‘)
m1.talk()
m1.sleep()
m1.make_friends(w1)

print(m1.friends[0].name)