Python 面向对象4-继承

 1 #!/usr/bin/env python
 2 # -*- coding:utf-8 -*-
 3 # 作者:Presley
 4 # 邮箱:1209989516@qq.com
 5 # 时间:2018-08-05
 6 # OOP学习2
 7 
 8 class SchoolMember(object):
 9     member_numbers = 0
10     def __init__(self,name,age,sex):
11         self.name = name
12         self.age = age
13         self.sex = sex
14         self.enroll() #注册
15     def enroll(self):
16         SchoolMember.member_numbers += 1
17         print("The [{0}] school member [{1}] is enrolled!".format(self.member_numbers,self.name))
18 
19     def tell(self):
20         print("Hello my name is %s"%(self.name))
21 
22 class Teacher(SchoolMember):
23     def __init__(self,name,age,sex,course,salary): #course 课程  ，salary 薪水
24         super(Teacher,self).__init__(name,age,sex)#先定义重写父类的name,age,sex这三个值，然后把父类的name,age,sex的值拿过来
25         self.course = course
26         self.salary = salary
27         #SchoolMember.__init__(self,name,age,sex)与super方法一样
28     def teaching(self):
29         print("Teacher [{0}] is teaching [1]".format(self.name,self.course))
30 
31 class Student(SchoolMember):
32     def __init__(self,name,age,sex,course,tuition): #tuition学费
33         super(Student,self).__init__(name,age,sex)
34         self.course = course
35         self.tuition = tuition
36     def pay_tution(self):  #交学费
37         print("cao,student [{0}] paying tution [{1}]".format(self.name,self.tuition))
38 
39 t1 = Teacher("Alex",22,'F',"PY",1000)
40 t2 = Teacher("Tenglan",25,"N/A","PY",900)
41 
42 s1 = Student("SanJiang",24,"Female","python",15000)
43 s2 = Student("BaoAn",23,"F","python",5000)
44 
45 t1.tell()
46 t1.teaching()
47 
48 s1.pay_tution()