选课系统开发

题目：选课系统开发，要求有四种角色:学校、学员、课程、讲师

详细要求:
1. 创建北京、上海2所学校
2. 创建linux,python,go3个课程，linuxpy在北京开，go在上海开
3. 课程包含，周期，价格，通过学校创建课程
4. 通过学校创建班级，班级关联课程、讲师
5. 创建学员时，选择学校，关联班级
6. 创建讲师角色时要关联学校，
7. 提供两个角色接口
8. 为学员、讲师、管理员分别提供用户界面，并提供对应功能：
    8.1 学员视图，可以注册，交学费，选择班级，
    8.2 讲师视图，讲师可管理自己的班级，上课时选择班级，查看班级学员列表，修改所管理的学员的成绩
    8.3 管理视图，创建讲师，创建班级，创建课程

说明：
程序运行入口是：bin文件夹下的start.py
结构见流程图

选课系统

bin目录下

start.py

# -*- coding:utf-8 -*-
#Author:Kris

import os,sys
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(BASE_DIR)

#print(sys.path)

from core import main
from conf import settings

if __name__ == '__main__':
    obj = main.Manage_center()
    obj.run()

　conf下的文件

settings

# -*- coding:utf-8 -*-
#Author:Kris

import os
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

database_path = os.path.join(BASE_DIR,"databases")
#print(data_path)
school_db_file = os.path.join(database_path,"school")

core下的文件

main.py

# -*- coding:utf-8 -*-
#Author:Kris
import os,sys,shelve
from conf import settings
from modules.school import School

class Manage_center(object):
    def __init__(self):
        pass
    def run(self):
        while True:
            print("33[31;0m欢迎进入选课系统33[0m
"
                  "1 学生视图
"
                  "2 教师视图
"
                  "3 管理视图
"
                  "4 退出学员管理系统(请按q)
")
            user_choice = input("请输入您要进入的视图序号:")
            if user_choice == '1':
                Manage_student()
            elif user_choice == '2':
                Manage_teacher()
            elif user_choice == '3':
                Manage_school()
            elif user_choice == 'q':
                print("感谢使用学员管理系统")
                break
            else:
                print("请输入正确的选项")

class Manage_school(object):
    '''学校管理视图'''
    def __init__(self):
        if os.path.exists(settings.school_db_file+".dat"): #shelve会生成三个文件，其中有.dat结尾
            self.school_db = shelve.open(settings.school_db_file)  #打开学校数据库文件
            self.run_manage()   #运行管理视图
            self.school_db.close()  #关闭数据库文件
        else:
            print("系统信息：初始化数据库")
            self.initialize_school()  #初始化数据库
            self.run_manage()
            self.school_db.close()

    def initialize_school(self):  ##初始化两所学校
        self.school_db = shelve.open(settings.school_db_file)
        self.school_db['北京'] = School('北京', '中国.北京')
        self.school_db['上海'] = School('上海', '中国.上海')
    def run_manage(self):
        '''运行学校管理视图 '''
        while True:
            for key in self.school_db:
                print("学校名称：",key)
            choice_school = input("输入要管理的学校名:").strip()
            if choice_school in self.school_db:
                self.choice_school = choice_school
                self.school_obj = self.school_db[choice_school] #取出value值
                while True:
                    print("
33[31;0m欢迎来到老男孩%s校区33[0m
"
                          "添加课程 add_course
"
                          "增加班级 add_class
"
                          "招聘讲师 add_teacher
"
                          "查看课程 check_course
"
                          "查看班级 check_class
"
                          "查看讲师 check_teacher
"
                          "退出程序 exit"% self.choice_school) ##也有可以self.school_obj.school_name
                    user_func = input("输入要操作的33[34;0m英文33[0m指令:").strip()
                    if hasattr(self,user_func):
                        getattr(self,user_func)()
            else:
                print("输入错误：请输入正确的学校名>>")

    def add_course(self):
        course_name = input("输入要添加课程的名称:").strip()
        course_price = input("输入要添加课程的价格:").strip()
        course_time = input("输入要添加课程的周期:").strip()
        if course_name in self.school_obj.school_course:  #判断课程是否已经添加过
            print("课程存在")
            self.school_obj.create_course(course_name, course_price, course_time)
            print("课程更新完成")
        else:
            self.school_obj.create_course(course_name,course_price,course_time)
            print("课程添加成功")
        self.school_db.update({self.choice_school: self.school_obj}) #更新数据库数据 k:v

    def add_class(self):
        class_name = input("输入要添加班级的名称：").strip()
        course_name = input("输入要关联的课程：").strip()
        if class_name not in self.school_obj.school_class:
            if course_name in self.school_obj.school_course:
                course_obj = self.school_obj.school_course[course_name]
                self.school_obj.create_class(class_name,course_obj)
                self.school_db.update({self.choice_school: self.school_obj})  # 更新数据库数据
                print("班级创建成功")
            else:
                print("33[31;1m系统错误：关联的课程不存在33[0m")
        else:
            print("33[31;1m系统错误：班级已经存在33[0m")

    def add_teacher(self):
        teacher_name = input("输入要招聘教师的名称：").strip()
        teacher_salary = input("输入教师的薪资：").strip()
        teacher_class = input("输入要关联的班级：").strip()
        if teacher_class in self.school_obj.school_class:  #判断班级是否存在
            class_obj = self.school_obj.school_class[teacher_class] #获取班级名对应的实例
            if teacher_name not in self.school_obj.school_teacher:#判断招聘教师是否存在，不存在创建，存在更新
                self.school_obj.create_teacher(teacher_name,teacher_salary,teacher_class,class_obj)
                print("新讲师招聘成功")
            else:
                self.school_obj.update_teacher(teacher_name, teacher_class, class_obj)
                print("讲师已经存在，信息更新完成")

            self.school_db.update({self.choice_school: self.school_obj})  # 更新数据库数据
        else:
            print("33[31;1m系统错误：关联的班级不存在33[0m")

    def check_course(self):
        self.school_obj.show_course()

    def check_class(self):
        self.school_obj.show_class()

    def check_teacher(self):
        self.school_obj.show_teacher()

    def exit(self):
        self.school_db.close()
        sys.exit("33[32;1m欢迎下次使用学员管理系统33[0m")

class Manage_student(object):
    '''学生视图'''
    def __init__(self):
        if os.path.exists(settings.school_db_file + ".dat"):  # shelve会生成三个文件，其中有.dat结尾
            self.school_db = shelve.open(settings.school_db_file)  # 打开学校数据库文件
            self.run_manage()  # 运行管理视图
            self.school_db.close()  # 关闭数据库文件
        else:
            print("数据库文件不存在，请先创建学校")
            exit()

    def run_manage(self):
        print("
欢迎进入学员视图")
        for key in self.school_db:
            print("学校名称：", key)
        choice_school = input("输入选择注册的学校名:").strip()
        if choice_school in self.school_db:
            self.choice_school = choice_school
            self.school_obj = self.school_db[choice_school]
            student_name = input("输入学生的姓名：").strip()
            student_age = input("输入学生的年龄：").strip()
            self.school_obj.show_class_course()
            class_choice = input("输入上课的班级：").strip()
            if class_choice in self.school_obj.school_class:
                self.school_obj.create_student(student_name,student_age,class_choice)
                self.school_db.update({self.choice_school: self.school_obj})  # 更新数据库数据
                print("学生注册成功")
            else:
                print("33[31;1m系统错误：输入的班级不存在33[0m")
        else:
            print("33[31;1m系统错误：输入的学校不存在33[0m")


class Manage_teacher(object):
    '''教师视图'''
    def __init__(self):
        if os.path.exists(settings.school_db_file + ".dat"):  # shelve会生成三个文件，其中有.dat结尾
            self.school_db = shelve.open(settings.school_db_file)  # 打开学校数据库文件
            self.run_manage()  # 运行管理视图
            self.school_db.close()  # 关闭数据库文件
        else:
            print("数据库文件不存在，请先创建学校")
            exit()

    def run_manage(self):
        for key in self.school_db:
            print("学校名称：", key)
        choice_school = input("输入选择学校名:").strip()
        if choice_school in self.school_db:
            self.choice_school = choice_school
            self.school_obj = self.school_db[choice_school]
            teacher_name = input("输入登录讲师的姓名：").strip()
            while True:
                if teacher_name in self.school_obj.school_teacher:
                    print("33[31;0m欢迎来到教师中心33[0m
"
                          "查看班级 check_class
"
                          "退出程序 exit
" )
                    user_func = input("输入要操作的命令：").strip()
                    if hasattr(self, user_func):
                        getattr(self, user_func)(teacher_name)
                else:
                    print("讲师不存在")

    def check_class(self,teacher_name):
        self.school_obj.show_teacher_classinfo(teacher_name)

    def exit(self,*args):
        self.school_db.close()
        sys.exit("欢迎下次使用学员管理系统")

databases下的文件

是pickle自动生成的数据库文件

modules下的文件

　　class.py

# -*- coding:utf-8 -*-
#Author:Kris

class Class(object):
    '''班级类，包含名称，课程，学生'''
    def __init__(self,class_name,course_obj):
        self.class_name = class_name
        self.class_course = course_obj
        self.class_student = {}         #学生字典

　　course.py

# -*- coding:utf-8 -*-
#Author:Kris

class Course():
    '''定义课程类，包含名称，价格，周期'''
    def __init__(self,course_name,course_price,course_time):
        self.course_name = course_name
        self.course_price = course_price
        self.course_time = course_time

　　school.py

# -*- coding:utf-8 -*-
#Author:Kris

from modules.course import Course
from modules.classs import Class
from modules.teacher import Teacher
from modules.student import Student

class School(object):
    '''学校类，包含名称，地址，课程，班级，教师'''
    def __init__(self,school_name,school_addr):
        self.school_name = school_name
        self.school_addr = school_addr
        self.school_course = {}             #学校所有的课程实例
        self.school_class = {}
        self.school_teacher = {}
        #self.school_student = {}
    def create_course(self,course_name,course_price,course_time):
        '''创建课程'''
        course_obj = Course(course_name,course_price,course_time)
        self.school_course[course_name] = course_obj

    def show_course(self):
        '''查看课程信息'''
        for key in self.school_course:
            course_obj = self.school_course[key]
            print("33[32;1m课程：%s	价格：%s	周期：%s个月33[0m"%(course_obj.course_name,course_obj.course_price,
                                         course_obj.course_time,))

    def create_class(self,class_name,courese_obj):
        '''创建班级'''
        class_obj = Class(class_name,courese_obj)
        self.school_class[class_name] = class_obj

    def show_class(self):
        for key in self.school_class:
            class_obj = self.school_class[key]
            print("33[32;1m班级：%s	关联课程：%s33[0m" % (class_obj.class_name, class_obj.class_courese.course_name))

    def show_class_course(self):
        for key in self.school_class:
            class_obj = self.school_class[key]
            course_obj = class_obj.class_courese
            print("33[32;1m班级：%s	关联课程：%s	价格：%s	周期：%s月33[0m" % (class_obj.class_name, course_obj.course_name,
                                                                    course_obj.course_price,course_obj.course_time))

    def create_teacher(self,teacher_name, teacher_salary,class_name,class_obj):
        '''创建讲师'''
        teacher_obj = Teacher(teacher_name, teacher_salary)
        teacher_obj.teacher_add_class(class_name,class_obj)
        self.school_teacher[teacher_name] = teacher_obj

    def update_teacher(self,teacher_name,class_name,class_obj):
        '''更新教师信息'''
        teacher_obj = self.school_teacher[teacher_name]
        teacher_obj.teacher_add_class(class_name,class_obj)

    def show_teacher(self):
        '''查看讲师信息'''
        for key in self.school_teacher:
            teacher_obj = self.school_teacher[key]
            class_list = []
            for i in teacher_obj.teacher_calss:
                class_list.append(i)
            print("33[32;1m讲师：%s	薪资：%s	关联班级：%s33[0m" % (teacher_obj.teacher_name, teacher_obj.teacher_salary,
                                                          class_list ))
    def create_student(self,student_name,student_age,class_choice):
        '''注册学生'''
        student_obj = Student(student_name,student_age)     #生成学生实例
        class_obj = self.school_class[class_choice]         #获取学生所注册班级的实例对象
        class_obj.class_student[student_name]=student_obj   #班级实例里添加学生信息
        self.school_class[class_choice] = class_obj         #学校班级字典更新

    def show_teacher_classinfo(self,teacher_name):
        teacher_obj = self.school_teacher[teacher_name]
        for i in teacher_obj.teacher_calss:
            class_obj = self.school_class[i]
            student_list = []
            for k in class_obj.class_student:
                student_list.append(k)
            print("33[32;1m班级：%s	关联课程：%s	学员:%s33[0m"
                  % (class_obj.class_name, class_obj.class_courese.course_name,student_list))

　　student.py

# -*- coding:utf-8 -*-
#Author:Kris

class Student(object):
    '''学生类，包含姓名，年龄'''
    def __init__(self,student_name,student_age):
        self.student_name = student_name
        self.student_age = student_age

　　teacher.py

# -*- coding:utf-8 -*-
#Author:Kris

class Teacher(object):
    '''讲师类，定义teacher_name，teacher_salary，包含teacher_class'''
    def __init__(self, teacher_name, teacher_salary):
        self.teacher_name = teacher_name
        self.teacher_salary = teacher_salary
        self.teacher_calss = {}
    def teacher_add_class(self,class_name,class_obj):
        self.teacher_calss[class_name] = class_obj