面向对象编程-继承实例

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author:James Tao

class School(object):
    def __init__(self,name,addr):
        self.name=name
        self.addr=addr
        self.students=[]
        self.teachers=[]

    def enroll(self,stu_obj):
        print('为学员%s办理注册手续' % stu_obj.name)
        self.students.append(stu_obj)

    def employ(self,tea_obj):
        print('为教师%s办理注册手续' % tea_obj.name)
        self.teachers.append(tea_obj)

class SchoolMember(object):
    def __init__(self,name,age,sex):
        self.name=name
        self.age=age
        self.sex=sex
    def tell(self):
        print('''----
        ''')

class Teacher(SchoolMember):
    def __init__(self, name, age, sex, salary, course):
        super(Teacher, self).__init__(name, age, sex)
        self.salary = salary
        self.course=course

    def tell(self):
        print('''
        ----info of {_name}----
        Name:{_name}
        Age:{_age}
        Sex:{_sex}
        Salary:{_salary}
        Course:{_course}
        '''.format(_name=self.name, _age=self.age, _sex=self.sex, _salary=self.salary, _course=self.course))

    def teach(self):
        print('%s is teaching course [%s]' % (self.name, self.course))

class Student(SchoolMember):
    def __init__(self,name,age,sex,stu_id,grade):
        super(Student,self).__init__(name, age, sex)
        self.stu_id = stu_id
        self.grade=grade

    def tell(self):
        print('''
        ----info of {_name}----
        Name:{_name}
        Age:{_age}
        Sex:{_sex}
        Stu_id:{_stu_id}
        Grade:{_grade}
        '''.format(_name=self.name, _age=self.age, _sex=self.sex, _stu_id=self.stu_id, _grade=self.grade))

    def learn(self):
        print('%s is learning in grade [%s]' % (self.name, self.grade))

    def pay_tuition(self,amount):
        print('%s has paid tuition for $%s' % (self.name,amount))

school=School('BIT','中关村')
t1=Teacher('Wang',40,'F',200000,'BD')
s1=Student('Tao',24,'M',3120180812,'BD')
school.enroll(s1)
school.employ(t1)
t1.tell()
s1.tell()
print(school.students)
school.students[0].learn()
school.teachers[0].teach()

运行结果：