一、需求

角色:學校、學員、課程、講師
要求:
1. 創建北京、上海 2 所學校
2. 創建linux , python , go 3個課程 ， linux\py 在北京開， go 在上海開
3. 課程包含，周期，價格，通過學校創建課程
4. 通過學校創建班級， 班級關聯課程、講師
5. 創建學員時，選擇學校，關聯班級
5. 創建講師角色時要關聯學校，
6. 提供兩個角色接口
7. 學員視圖， 可以註冊， 交學費， 選擇班級，
8. 講師視圖， 講師可管理自己的班級， 上課時選擇班級， 查看班級學員列表 ， 修改所管理的學員的成績
9. 管理視圖，創建講師， 創建班級，創建課程

10. 上面的操作產生的數據都通過pickle序列化保存到文件裏

二、代碼

import os, pickle

BASR_DIR = os.path.dirname(os.path.abspath(__file__))
__school_db = os.path.join(BASR_DIR, ‘school_db‘)
__teacher_db = os.path.join(BASR_DIR, ‘teacher_db‘)


def init_database():
    if not os.path.exists(__school_db):
        bj = School(‘北京‘, ‘北京沙河‘)
        sh = School(‘
 
上海‘, ‘上海市‘)
        dic = {bj: [], sh: []}
        file_opration(__school_db, ‘wb‘, dic)
    if not os.path.exists(__teacher_db):
        dic = {}
        file_opration(__teacher_db, ‘wb‘, dic)


def file_opration(file, mode, *args):
    if mode == ‘wb‘:
        with open(file, mode)as f:
            f.write(pickle.dumps(args[0]))
    
 
if mode == ‘rb‘:
        with open(file, mode) as f:
            return pickle.loads(f.read())


class School:
    def __init__(self, name, addr):
        self.name = name
        self.addr = addr

    def msg_display(self):
        print(‘校區名稱：\033[1;32m%s\033[0m 校區位置：\033[1;32m %s\033[0m‘ % (self.name, self.addr))

    def create_course(self, course_obj, school_dict, file):
        school_dict[self].append(course_obj)
        file_opration(file, ‘wb‘, school_dict)


class Course:
    def __init__(self, name, price, time):
        self.name = name
        self.price = price
        self.time = time
        self.classes = {}

    def msg_display(self):
        print(‘【課程】：\033[1;32m%s\033[0m 【價格】：\033[1;32m%s\033[0m 【周期】：\033[1;32m%s\033[0m‘ % (
        self.name, self.price, self.time))

    def create_class(self, class_obj):
        self.classes[class_obj.name] = class_obj


class Class:
    def __init__(self, name):
        self.name = name
        self.students = {}
        self.teachers = {}


class Teacher:
    def __init__(self, name):
        self.name = name


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


def main_center():
    flag = True
    while flag:
        print(‘********\033[1;35m歡迎來到管理員系統\033[0m!**********‘)
        choice = input(‘輸入1：增加課程\n輸入2：增加班級\n輸入3：增加教師\n輸入4：返回\n‘).strip()
        school_dict = file_opration(__school_db, ‘rb‘)
        if choice == ‘1‘:
            for i in school_dict:
                i.msg_display()
            while 1:
                school_choice = input("請輸入需要創建課程的校區名稱：\n")
                if school_choice == ‘北京‘ or school_choice == ‘上海‘:
                    for i in school_dict:
                        if i.name == school_choice:
                            school_obj = i
                    course_name = input("請輸入課程名稱\n")
                    price = input("請輸入課程價格\n")
                    time = input("請輸入課程周期\n")
                    course_obj = Course(course_name, price, time)
                    school_obj.create_course(course_obj, school_dict, __school_db)
                    print("\033[1;35m增加課程成功\033[0m")
                    break
                else:
                    print("\033[1;35m別瞎幾把亂輸！輸入學校名稱，懂？？\033[0m")

        elif choice == ‘2‘:
            for i in school_dict:
                i.msg_display()
            while flag:
                school_choice = input("請輸入需要創建班級的校區名稱：\n")
                if school_choice == ‘北京‘ or school_choice == ‘上海‘:
                    for i in school_dict:
                        if i.name == school_choice:
                            school_obj = i
                    if not school_dict[school_obj]:
                        print("\033[1;35m你腦袋在想啥？沒建課程，就想創班級？？\033[0m")
                        break
                    print(‘******\033[1;32m%s校區已有的課程如下：\033[0m******‘ % (school_choice))
                    course_name_list = []
                    for i in school_dict[school_obj]:
                        course_name_list.append(i.name)
                        i.msg_display()
                    while 1:
                        course_name = input("請輸入課程名稱\n")
                        if course_name in course_name_list:
                            for i in school_dict[school_obj]:
                                if i.name == course_name:
                                    if i.classes:
                                        print("%s課程已有的班級如下：" % (i.name))
                                        for j in i.classes:
                                            print(j)
                                    else:
                                        print("該課程該沒有班級，請創建。")
                                    class_name = input("請輸入要新建的班級名稱：\n")
                                    new_class_obj = Class(class_name)
                                    i.create_class(new_class_obj)
                                    file_opration(__school_db, ‘wb‘, school_dict)
                                    print("\033[1;32m創建成功！\033[0m")
                                    flag = False
                                    break
                            break
                        else:
                            print("\033[1;35m輸入已有課程的名字!understand?\033[0m")


                else:
                    print("\033[1;35m別瞎幾把亂輸！輸入學校名稱，懂？？\033[0m")

        elif choice == ‘3‘:
            flag = True
            for i in school_dict:
                i.msg_display()
            while flag:
                school_choice = input("請輸入需要招聘教師的校區名稱：\n")
                if school_choice == ‘北京‘ or school_choice == ‘上海‘:
                    for i in school_dict:
                        if i.name == school_choice:
                            school_obj = i
                    if not school_dict[school_obj]:
                        print("\033[1;35m你腦袋在想啥？課程都沒有，招老師去幹嗎？？\033[0m")
                        break
                    print(‘******\033[1;32m%s校區已有的課程如下：\033[0m******‘ % (school_choice))
                    course_name_list = []
                    for i in school_dict[school_obj]:
                        course_name_list.append(i.name)
                        i.msg_display()
                    flag2 = True
                    while flag2:
                        course_name = input("請輸入需要招聘教師的課程名稱\n")
                        if course_name in course_name_list:
                            for i in school_dict[school_obj]:
                                if i.name == course_name:
                                    if i.classes:
                                        print("%s課程已有的班級如下：" % (i.name))
                                        for j in i.classes:
                                            print(j)
                                    else:
                                        print("該課程該沒有班級，請創建後再進行教師招聘。")
                                        flag2 = False
                                        flag = False
                                        break
                                    while 1:
                                        class_name = input("請輸入要招聘教師的班級名稱：\n").strip()
                                        teacher_name = input("請輸入教師名字：\n")
                                        teacher_obj = Teacher(teacher_name)
                                        if class_name in i.classes:
                                            i.classes[class_name].teachers[teacher_name] = teacher_obj
                                            file_opration(__school_db, ‘wb‘, school_dict)
                                            print("\033[1;32m招聘成功！\033[0m")
                                        else:
                                            print("\033[1;35m輸入班級名稱！！！\033[0m")
                                        flag = False
                                        break
                            break
                        else:
                            print("\033[1;35m輸入已有課程的名字!understand?\033[0m")


                else:
                    print("\033[1;35m別瞎幾把亂輸！輸入學校名稱，懂？？\033[0m")
        elif choice == ‘4‘:
            break
        else:
            print("\033[1;35m別瞎幾把亂輸！輸入1、2、3，懂？？\033[0m")


def studet_center():
    print(‘********\033[1;35m歡迎來到學生系統\033[0m!**********‘)
    school_dict = file_opration(__school_db, ‘rb‘)
    while 1:
        choice = input(‘輸入1：報名\n輸入2：返回\n‘).strip()
        if choice == ‘1‘:
            student_name = input("請輸入您的姓名：\n").strip()
            student_age = input("請輸入您的年齡：\n").strip()
            student_obj = Student(student_name, student_age)
            flag = True
            for i in school_dict:
                i.msg_display()
            while flag:
                school_choice = input("請輸入需要要報名的校區名稱：\n")
                if school_choice == ‘北京‘ or school_choice == ‘上海‘:
                    for i in school_dict:
                        if i.name == school_choice:
                            school_obj = i
                    if not school_dict[school_obj]:
                        print("\033[1;35m你腦袋在想啥？課程都沒有，報啥名？？\033[0m")
                        break
                    print(‘******\033[1;32m%s校區已有的課程如下：\033[0m******‘ % (school_choice))
                    course_name_list = []
                    for i in school_dict[school_obj]:
                        course_name_list.append(i.name)
                        i.msg_display()
                    flag2 = True
                    while flag2:
                        course_name = input("請輸入需要加入的課程名稱\n")
                        if course_name in course_name_list:
                            for i in school_dict[school_obj]:
                                if i.name == course_name:
                                    if i.classes:
                                        print("%s課程已有的班級如下：" % (i.name))
                                        for j in i.classes:
                                            print(j)
                                    else:
                                        print("該課程班級都沒有，報啥子名，去哪上課？？")
                                        flag2 = False
                                        flag = False
                                        break
                                    while 1:
                                        class_name = input("請輸入加入的班級名稱：\n").strip()
                                        if class_name in i.classes:
                                            print("這門課要%s元，請確認你有錢嗎？" % (i.price))
                                            stu_choice = input("這麽貴你還要報名嗎?Y/N\n").strip()
                                            if stu_choice.lower() == ‘y‘:
                                                i.classes[class_name].students[student_name] = student_obj
                                                file_opration(__school_db, ‘wb‘, school_dict)
                                                print("\033[1;32m報名成功！\033[0m")
                                                flag = False
                                                break
                                            else:
                                                print("\033[1;32m窮鬼！！\033[0m\n")
                                                flag = False
                                                break
                                        else:
                                            print("\033[1;35m輸入班級名稱！！！\033[0m")

                            break
                        else:
                            print("\033[1;35m輸入已有課程的名字!understand?\033[0m")


                else:
                    print("\033[1;35m別瞎幾把亂輸！輸入學校名稱，懂？？\033[0m")

        elif choice == ‘2‘:
            break
        else:
            print("\033[1;35m別瞎幾把亂輸！輸入1、2，懂？？\033[0m")


def teacher_center():
    print(‘********\033[1;35m歡迎來到教師管理系統\033[0m!**********‘)
    teacher_name = input("請輸入您的姓名").strip()
    school_dict = file_opration(__school_db, ‘rb‘)
    while 1:
        choice = input(‘輸入1：查看學生信息  輸入2：選擇班級上課  輸入3：返回\n‘).strip()
        teacher_exit = False
        if choice == ‘1‘:
            for i in school_dict:
                for course_obj in school_dict[i]:
                    for class_obj in course_obj.classes.values():
                        if teacher_name in class_obj.teachers:
                            teacher_exit = True
                            print("***您的班級：\033[1;35m%s\033[0m，當前學生如下：" % (class_obj.name))
                            for i in class_obj.students:
                                print(i, end=‘  ‘)
                            print()
            if teacher_exit == False:
                print("沒有這個老師，請重新檢查後再輸入")
                break

        elif choice == ‘2‘:
            class_dic = {}
            for i in school_dict:
                for course_obj in school_dict[i]:
                    for class_obj in course_obj.classes.values():
                        if teacher_name in class_obj.teachers:
                            teacher_exit = True
                            class_dic[class_obj.name] = class_obj
            if teacher_exit == False:
                print("沒有這個老師，請重新檢查後再輸入")
                break
            print("您當前授課的班級如下請輸出班級名稱：")
            for j in class_dic:
                print(j, end=‘‘)
            print()
            cls_choice = input(">>>:").strip()
            if cls_choice in class_dic:
                print("成功在\033[1;32m%s\033[0m上課" % (cls_choice))

        elif choice == ‘3‘:
            break

        else:
            print("\033[1;35m別瞎幾把亂輸！輸入1、2、3，懂？？\033[0m")


def main():
    print(‘********\033[1;35m歡迎來到老男孩學生管理系統\033[0m!**********‘)
    while 1:
        choice = input(‘輸入1：學生登錄\n輸入2：教師登錄\n輸入3：管理員登錄\n輸入q:退出\n‘).strip()
        if choice == ‘1‘:
            studet_center()
        elif choice == ‘2‘:
            teacher_center()
        elif choice == ‘3‘:
            main_center()
        elif choice.upper() == ‘Q‘:
            break
        else:
            print("\033[1;35m別瞎幾把亂輸！輸入學校名稱，懂？？\033[0m")


if __name__ == ‘__main__‘:
    init_database()
    main()

三、關於程序的相關說明

1、這個系統支持一個課程有多個班級，一個同學選擇多門課程，一個老師任教多個班級。
2、系統功能基本實現，但是代碼還很low,而且還沒拆分程序，做文件目錄。

三、測試

登錄界面

增加課程

增加班級（選擇學校會顯示已有的課程，班級）：

增加教師：

學生報名：

老師方法：

註：這個系統支持一個課程有多個班級，一個同學選擇多門課程，一個老師任教多個班級。以上代碼僅是部分功能測試。

python選課系統完整版