作业面向对象2

1、练习上课作业讲解的面向对象代码，明天默写
2、基于上课作业讲解的面向对象代码，扩写Student类
3、加入序列化与反序列化操作
4、对象之间的关联采用id号
5、可以通过id找到对应的文件，然后从文件中反序列化出执行的学校、班级、课程、学生对象

import pickle
import uuid


class School:
    school_name = 'OLDBOY'

    def __init__(self, nickname, addr):
        self.uuid = uuid.uuid4()
        self.nickname = nickname
        self.addr = addr
        self.classes = []
        self.save_info()


    def related_class(self, class_obj):
        self.classes.append(class_obj.uuid)
        self.save_info()


    def get_class(self):

        print(self.nickname.center(60, '='))
        for class_uuid in self.classes:
            with open(f'class{class_uuid}.pkl', 'rb') as f:
                class_obj = pickle.load(f)
                class_obj.get_course()
                class_obj.get_student()
                class_obj.get_teacher()


    def save_info(self):
        with open(f'school{self.uuid}.pkl', 'wb') as f:
            pickle.dump(self, f)


    def select(self):
        with open(f'school{self.uuid}.pkl', 'rb') as f:
            pickle.load(f)


class Class:
    def __init__(self, name):
        self.uuid = uuid.uuid4()
        self.name = name
        self.course = None
        self.students = []
        self.teachers = []
        self.save_info()


    def related_course(self, course_obj):
        self.course = course_obj.uuid
        self.save_info()


    def related_student(self, stu_obj):
        self.students.append(stu_obj.uuid)
        self.save_info()


    def related_teacher(self, tea_obj):
        self.teachers.append(tea_obj.uuid)
        self.save_info()


    def get_course(self):
        print('%s' % self.name, end=" ")
        with open(f'course{self.course}.pkl', 'rb') as f:
            course_obj = pickle.load(f)
            course_obj.tell_cou_info()


    def get_student(self):
        for stu_obj_uuid in self.students:
            with open(f'student{stu_obj_uuid}.pkl', 'rb') as f:
                stu_obj = pickle.load(f)
                stu_obj.tell_stu_info()


    def get_teacher(self):
        for tea_obj_uuid in self.teachers:
            with open(f'teacher{tea_obj_uuid}.pkl', 'rb') as f:
                tea_obj = pickle.load(f)
                tea_obj.tell_tea_info()


    def save_info(self):
        with open(f'class{self.uuid}.pkl', 'wb') as f:
            pickle.dump(self, f)


class Course:
    def __init__(self, name, period, price):
        self.uuid = uuid.uuid4()
        self.name = name
        self.period = period
        self.price = price
        self.save_info()


    def tell_cou_info(self):
        print('<课程名:%s 周期:%s 价钱:%s>' % (self.name, self.period, self.price))


    def save_info(self):
        with open(f'course{self.uuid}.pkl', 'wb') as f:
            pickle.dump(self, f)


class Student:
    def __init__(self, name, age, sex):
        self.uuid = uuid.uuid4()
        self.name = name
        self.age = age
        self.sex = sex
        self.save_info()


    def tell_stu_info(self):
        print(f'学生姓名：{self.name} 学生年龄：{self.age} 学生性别：{self.sex}')


    def save_info(self):
        with open(f'student{self.uuid}.pkl', 'wb') as f:
            pickle.dump(self, f)


class Teacher:
    def __init__(self, name, age, salary, grade):
        self.uuid = uuid.uuid4()
        self.name = name
        self.age = age
        self.salary = salary
        self.grade = grade
        self.save_info()

    def tell_tea_info(self):
        print(f'老师姓名：{self.name} 老师年龄：{self.age} 老师薪资：{self.salary} 老师等级：{self.grade}')


    def save_info(self):
        with open(f'teacher{self.uuid}.pkl', 'wb') as f:
            pickle.dump(self, f)


school_obj1 = School('老男孩魔都校区', '上海')
school_obj2 = School('老男孩帝都校区', '北京')

class_obj1 = Class('脱产14期')
class_obj2 = Class('脱产15期')
class_obj3 = Class('脱产2期')

course_obj1 = Course('python全栈开发', '6mons', 20000)
course_obj2 = Course('linux运维', '5mons', 18000)

stu_obj1 = Student('zc', 18, 'female')
stu_obj2 = Student('tank', 19, 'male')
stu_obj3 = Student('mac', 20, 'male')

teacher_obj1 = Teacher('egon', 88, 30000, '教师1')
teacher_obj2 = Teacher('tank', 18, 300000, '教师2')

school_obj1.related_class(class_obj1)
school_obj1.related_class(class_obj2)

school_obj2.related_class(class_obj3)


class_obj1.related_course(course_obj1)
class_obj2.related_course(course_obj2)
class_obj3.related_course(course_obj1)


class_obj1.related_student(stu_obj1)
class_obj2.related_student(stu_obj2)
class_obj3.related_student(stu_obj3)

class_obj1.related_teacher(teacher_obj1)
class_obj2.related_teacher(teacher_obj2)
class_obj3.related_teacher(teacher_obj1)


school_obj1.get_class()
school_obj2.get_class()