继承练习

import pickle

class School:
    name_school='oldboy'
    def __init__(self, name, address):
        self.sch_name=name
        self.sch_address=address
        self.classes = []

    @property
    def tell_sch_info(self):
        info='学校信息：校区：%s 地址：%s' %(
            self.sch_name,
            self.sch_address
        )
        return info

    def related_class(self,schcla_obj):
        self.classes.append(schcla_obj)

    @property
    def tell_class(self):
        info=self.tell_sch_info
        for schcla_obj in self.classes:
            infos=schcla_obj.tell_scs_info
        return info,infos

class SchoolClass:

    def __init__(self,name):
        self.schcla_name = name
        self.course=[]

    def related_course(self, cou_obj):
        self.course.append(cou_obj)

    @property
    def tell_scs_info(self):
        info='班级名称：%s' % (
            self.schcla_name,
        )
        for cou_obj in self.course:
            infos=cou_obj.tell_course_info
        return info,infos

class Course:

    def __init__(self, name,price,cycle):
        self.cou_name=name
        self.cou_price=price
        self.cou_cycle=cycle
        self.cou_teach=[]

    def related_teach(self, tea_obj):
        self.cou_teach.append(tea_obj)

    @property
    def tell_course_info(self):
        info='课程信息：名字：%s 价格：%s 周期：%s' %(
            self.cou_name,
            self.cou_price,
            self.cou_cycle
        )
        for tea_obj in self.cou_teach:
            infos=tea_obj.tell_info
        return info,infos

class Info:
    def __init__(self, name,age,gender):
        self.name=name
        self.age = age
        self.gender = gender

class Teacher(Info):
    school_teach='oldboy'

    def __init__(self, name,age,gender,salary,level):
        Info.__init__(self, name,age,gender)
        self.salary=salary
        self.level=level

    @property
    def tell_info(self):
        info='教师信息：名字：%s 年龄：%s 性别：%s 薪资：%s 等级：%s' %(
            self.name,
            self.age,
            self.gender,
            self.salary,
            self.level
        )
        return info

class Student(Info):

    def __init__(self,name,age,gender,number):
        Info.__init__(self, name, age, gender)
        self.number=number
        self.course = None

    def related_school(self, sch_obj):
        self.course=sch_obj

    @property
    def tell_stu_info(self):
        info='学生信息：名字：%s 年龄：%s 性别：%s 学号：%s' %(
            self.name,
            self.age,
            self.gender,
            self.number
        )
        infos=self.course.tell_class
        return info,infos

stu1_obj=Student('tank',18,'male',111)
stu2_obj=Student('lili',19,'female',222)
stu3_obj=Student('jack',20,'male',333)

tea_obj1=Teacher('lxx',38,'male',20000,6)

sch_obj1=School('上海','虹桥')
schcla_obj1=SchoolClass('python十一期')
cou_obj1=Course('Python',20000,6)
stu1_obj.related_school(sch_obj1)
sch_obj1.related_class(schcla_obj1)
schcla_obj1.related_course(cou_obj1)
cou_obj1.related_teach(tea_obj1)
info_student=stu1_obj.tell_stu_info
print(info_student)

with open('student.pickle', 'wb') as f1:
    pickle.dump(info_student, f1)

with open('student.pickle', 'rb') as f2:
    info=pickle.load(f2)

print(info)