Python——类操作3——继承1

#class people(object): 新式类
class people:  # 经典类
    def __init__(self,name,age):
        self.name=name
        self.age=age
        self.friends=[]
    def eat(self):
        print("%s is eating..." % self.name)
    def sleep(self):
        print("%s is sleeping..." % self.name)
    def talk(self):
        print("%s is talking ...." % self.name)


# 多继承
class Relation(object):
    def make_friends(self, obj):
        print("%s is making friend with %s" % (self.name, obj.name))
        self.friends.append(obj) #传obj而不是obj.name
        '''
        多继承时，继承其中一个即可
        '''
class Man(people,Relation):
    def __init__(self,name,age,sex):
        people.__init__(self,name,age) #经典类写法
        #super(Man,self).__init__(name,age) #用于多继承方便 #新式类写法
        self.sex=sex
    def work(self):
        print("%s is working...." % self.name)
    def sleep(self): #重构父类方法
       # print("man is sleeping....") 直接覆盖父类
        people.sleep(self)
        print("man is sleeping ....")
        #输出：先输出父类的sleep()然后再输出子类的sleep()
class Woman(people,Relation):
    def __init__(self,name,age,sex):
        people.__init__(self,name,age)
        self.sex=sex
    def huazhuang(self):
        print("%s is huazhuang now.." % self.name)
m1=Man("Jack",26,"男")
m1.eat()
m1.work()
m1.sleep()
w1=Woman("Alice",28,"女")
w1.huazhuang()
m1.make_friends(w1)
w1.name="Back"
print(m1.friends[0].name)