Python 继承

class   School(object):
    mem = 0
    def __init__(self,name,addr):
        self.name = name
        self.addr = addr
        self.students = []
        self.teacher = []
    def enroll(self):
        print('为学员%s办理'%self.name)
    def tell(self):
        pass
    def __del__(self):
        # 析构方法
        print('\033[31;studnet [%s] is dead!\033[0m'%self.name)
class Teacher(School):
    def __init__(self,name,age,course,salary):
　　　　　#School.__init__(self,name,age)　         # 这一种是直接写父类的名字，然后.__init__(self,父类中初始化变量的名字)
        super(Teacher,self).__init__(name,age)   #   继承父类的方法，一共有两种。  第一种是用super （父类的名字，self）.__init__(初始化变量的名字)
        self.course = course
        self.salary =  salary
        self.enroll()

    def teaching(self):
        print('Teacher %s is teaching %s for class %s'%(self.name,self.course,'s23'))
    def tell(self):
        #  自我介绍的方法    #   每一种方法下面都应该写上这个方法的名字
        msg = 'hi, my name is %s'%(self.name)

class  Student(School):
    def __init__(self,name,age,grade,sid):
        super(Student,self).__init__(name,age)
        self.grade = grade
        self.sid = sid
        self.enroll()
    def tell(self):
        # 自我介绍的方法
        msg = 'hi, my name is %s'%self.name
        print(msg)

if  __name__ == '__main__':
    t1 = Teacher('dh',23,'python',3000)
    s1 = Student('qing',34,'python ',234)
    t1.teaching()
    s1.tell()