class Person(object):#(object),表示,没有父类
def __init__(self, name, age):#构造函数,其中self,代码对象自身
self.name = name
self.age = age
def print_message(self):
print self.age, self.name
class Student(Person):#Student继承Person
def __init__(self, name, age, score):
self.score = score
self.age = age
self.name = name
def hello(self):
print self.age, self.name, self.score