#coding: utf-8

class Member(object):

    member_nums = 0

    def __init__(self,name,age,sex):

        self.name = name

        self.age = age

        self.sex = sex

        self.enroll()

    def enroll(self):

        Member.member_nums += 1

        print("THE [%s] School Member  [%s] is enrolled!" %(Member.member_nums,self.name))

    def tell(self):

        print ("hello my name is [%s]" %self.name)

class Teacher(Member):

    def __init__(self,name,age,sex,couse,salary):

        super(Teacher,self).__init__(name,age,sex)

        self.couse = couse

    def teaching(self):

        print ("Teacher [%s] is teaching [%s]" %(self.name,self.couse))

class Student(Member):   

    def __init__(self,name,age,sex,couse,tuition):

        super(Student,self).__init__(name,age,sex)

        self.couse = couse

        self.tuition = tuition

    def pay_tuition(self):

        print (" fuck ,student [%s] paying tuition [%s]" %(self.name,self.tuition))

t1 = Teacher("alex",22,‘f‘,"PY",1000)

t2 = Teacher("box",25,"f","N/A",100) 

s1 = Student("Sanjiang",24,"F","java",15000)  

s2 = Student("jay",24,"m","go",14000)  

t1.tell()

s1.tell() 

t1.teaching()   

s1.pay_tuition()

对象-3.py