python 中类的继承与方法重写

#父类Person
class Person():  
    def __init__(self,name,age,hair):
        self.name = name
        self.age = age
        self.hair = hair

    def talk(self):
        print("Person is talking----")

#子类 Chinese
class Chinese(Person):  #先继承 Person，再重构自身类
    def __init__(self,name,age,language,hair):    # name age  hair 都是继承的父类 Person
        Person.__init__(self,name,age,hair)       #继承父类的构造方法  
        self.language = language                  # Chinese 类中的 language, name、age、hair 已继承父类Person

    def walk(self):
        print("Person is walking----")

c = Chinese('phone',21,'French','yello')
print (c.name)
print (c.age)
print (c.language)
print(c.hair)


运行结果：

phone
21
French
yello

　　

#父类Person
class Person():
    def __init__(self,name,age,hair):
        self.name = name
        self.age = age
        self.hair = hair

    def talk(self):
        print("Person is talking----")

#子类 Chinese
class Chinese(Person):  #先继承 Person，再重构自身类
    def __init__(self,name,age,language,hair):    # name age  hair 都是继承的父类 Person
        Person.__init__(self,name,age,hair)       #继承父类的构造方法
        self.language = language                  # Chinese 类中的 language, name、age、hair 已继承父类Person

    def walk(self):
        print("child  is walking----")
    # talk 方法，在子类当中重构该方法
    def talk(self):
        print("child is talking-----")

c = Chinese('phone',21,'French','yello')

print(c.talk())



打印结果：
child is talking-----