选课系统(面向对象的编程方法)

需求：

实现代码：

# Author: Severenimport pickleclass Course(object): # 课程类def __init__(self, type, price, time, id):self.id = idself.type = typeself.price = priceself.time = timeself.classrooms = []def add_classroom(self, obj):self.classrooms.append(obj)print("%s加入了%s" % (self.type, obj.name))class Classroom(object): # 教室类def __init__(self, name, id):self.name = nameself.id = idself.courses = []self.stus = []def add_course(self, obj):self.courses.append(obj)print("为%s添加了一门%s课程" % (self.name, obj.type))def add_stu(self, obj):self.stus.append(obj)print("为%s添加了一个学生-%s" % (self.name, obj.name))class School(object): # 学校类def __init__(self, id, name, addr):self.id = idself.name = nameself.addr = addrself.students = []self.staffs = []self.courses = []self.classrooms = []def enroll(self, stu_obj):self.students.append(stu_obj)print("为学员%s办理注册手续" % stu_obj.name)def hire(self, staff_obj):self.staffs.append(staff_obj)print("雇佣%s" % staff_obj.name)def create_course(self, course_type, price, time, course_id):course = Course(course_type, price, time, course_id)self.courses.append(course)print("新增一门%s课程成功！" % course_type)def create_classroom(self, name, id):self.classrooms.append(Classroom(name, id))print("新增%s成功！" % name)class SchoolMember(object): # 成员类def __init__(self, name, age, sex):self.name = nameself.age = ageself.sex = sexdef tell(self):passclass Teacher(SchoolMember): # 老师类def __init__(self, name, age, sex, salary, course_obj, school, id):super(Teacher, self).__init__(name, age, sex)self.id = idself.salary = salaryself.course_obj = course_objself.school =schooldef tell(self):print("""--- info of Teacher:Name: %sAge: %sSex: %sSalary: %sCourse: %s""" % (self.name, self.age, self.sex, self.salary, self.course_obj.type))def teach(self):print("%s is teaching course[%s]" % (self.name, self.course_obj.type))class Student(SchoolMember): # 学生类def __init__(self, name, age, sex, grade, id):super(Student, self).__init__(name, age, sex)self.stu_id = idself.grade = gradeself.classroom = Nonedef tell(self):print("""--- info of Student:Name: %sAge: %sSex: %sStu_id: %sGrade: %s""" % (self.name, self.age, self.sex, self.stu_id, self.grade))def pay_tuition(self): # 学费tuition = 0for course in self.classroom.courses:print(course.type, course.price, course.time)tuition += int(course.price)print("%s需要支付学费$%s" % (self.name, str(tuition)))x = input("请确认并输入支付密码: ")def schoolView(schools): # 学校视图for i in schools:print(i.id, i.name)sc_id = input("请选择要管理的学校(输入学校编号): ")while 1:print("1、新增课程； 2、新增班级； 3、雇佣教师； 4、班级管理")choice_type = input("请选择要进行的操作(输入编号): ")if choice_type == '1':if schools[int(sc_id)].courses == []:course_id = 0else:course_id = int(schools[int(sc_id)].courses[-1].id)course_type = input("课程类型: ")price = input("课程价格: ")time = input("课程周期: ")schools[int(sc_id)].create_course(course_type, price, time, (course_id+1))elif choice_type == '2':if schools[int(sc_id)].classrooms == []:room_id = 0else:room_id = int(schools[int(sc_id)].classrooms[-1].id)classroom_name = input("班级名称: ")schools[int(sc_id)].create_classroom(classroom_name, (room_id+1))elif choice_type == '3':if schools[int(sc_id)].staffs == []:staff_id = 0else:staff_id = int(schools[int(sc_id)].staffs[-1].id)for x in schools[int(sc_id)].courses:print(x.id, x.type)course_id = int(input("教师教授课程编号: "))name = input("教师姓名: ")age = input("教师年龄: ")sex = input("教师性别: ")salary = input("教师薪水: ")t = Teacher(name, age, sex, salary, schools[int(sc_id)].courses[course_id-1], schools[int(sc_id)], (staff_id+1))schools[int(sc_id)].hire(t)elif choice_type == '4':for classroom in schools[int(sc_id)].classrooms:print(classroom.id, classroom.name)classroom_id = input("输入选择管理的班级的编号：")classroom_id = int(classroom_id)print("请选择要添加的课程编号：")for course in schools[int(sc_id)].courses:print(course.id, course.type)while 1:c = input("输入课程编号：")if c == "q":print("已选课程：")for x in schools[int(sc_id)].classrooms[classroom_id-1].courses:print(x.type)breakschools[int(sc_id)].classrooms[classroom_id-1].add_course(schools[int(sc_id)].courses[int(c)-1])schools[int(sc_id)].courses[int(c)-1].add_classroom(schools[int(sc_id)].classrooms[classroom_id-1])elif choice_type == "q":breakdef stuView(schools): # 学生视图for i in schools:print(i.id, i.name)sc_id = input("请选择您的学校(输入学校编号): ")if schools[int(sc_id)].students == []:stu_id = 0else:stu_id = int(schools[int(sc_id)].students[-1].stu_id)name = input("请输入姓名：")age = input("请输入年龄：")sex = input("请输入性别：")grade = input("请输入年级：")stu = Student(name, age, sex, grade, stu_id+1)schools[int(sc_id)].enroll(stu)print("请选择班级(输入班级编号)：")for classroom in schools[int(sc_id)].classrooms:print(classroom.id, classroom.name)id = input("班级编号：")schools[int(sc_id)].classrooms[int(id)-1].add_stu(stu)stu.classroom = schools[int(sc_id)].classrooms[int(id)-1]stu.pay_tuition()def teacherView(schools): # 老师视图for i in schools:print(i.id, i.name)sc_id = input("请选择要您的学校编号: ")for x in schools[int(sc_id)].staffs:print(x.id, x.name)tc_id = int(input("请选择您的教师编号："))print("您的班级如下：")for x in schools[int(sc_id)].staffs[tc_id-1].course_obj.classrooms:print(x.id, x.name)i = input("输入班级编号查看班级成员：")for x in schools[int(sc_id)].staffs[tc_id-1].course_obj.classrooms[int(i)-1].stus:print(x.stu_id, x.name)schools = []
with open("test.txt", 'rb') as f:try:schools = pickle.loads(f.read()) #data = pickle.load(f)except EOFError as e:print("little thing...")if schools == []:schools.append(School(0, '北京大学', 'beijing'))schools.append(School(1, '上海交大', 'shanghai'))print("add_done...")
while 1:print("1、学校入口； 2、学生入口； 3、教师入口")choice = input("请输入您要进行的操作(输入编号): ")if choice == '1':schoolView(schools)elif choice == '2':stuView(schools)elif choice == '3':teacherView(schools)elif choice == "q":with open("test.txt", "wb") as f:f.write(pickle.dumps(schools))break

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