选课系统作业
Posted Optimus丶G
tags:
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一、作业需求
程序名称: 选课系统
角色:学校、学员、课程、讲师
要求:
1. 创建北京、上海 2 所学校
2. 创建linux , python , go 3个课程 ， linux\\py 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. 学员视图， 可以注册， 交学费， 选择班级，
9. 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
10. 管理视图，创建讲师， 创建班级，创建课程
11. 上面的操作产生的数据都通过pickle序列化保存到文件里
二、文件目录
三、源代码
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 import sys,os BASE_DIR=os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(BASE_DIR) from src import core if __name__ == \'__main__\': core.func()
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 STUDENTDB_PATH=r\'F:\\python文件\\选课系统\\db\\student\' TEACHERDB_PATH=r\'F:\\python文件\\选课系统\\db\\teacher\' COURSE_PATH=r\'F:\\python文件\\选课系统\\db\\course\' SCHOOL_PATH=r\'F:\\python文件\\选课系统\\db\\school\' CLASS_PATH=r\'F:\\python文件\\选课系统\\db\\class\'
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 from src import models from conf import settings import pickle import os s1 = models.School(\'北京校区\', \'中国北京\') s2 = models.School(\'上海校区\', \'中国上海\') python = s1.create_course(\'Python\', 19800, \'6mons\') linux = s1.create_course(\'Linux\', 17800, \'4mons\') go = s2.create_course(\'Go\', 9000, \'4mons\') school_obj=None def func(): while True: print(\'欢迎进入老男孩选课系统\'.center(30,\'*\'), \'\\n1.北京校区\\n\' \'2.上海校区\\n\' \'3.退出程序\') res=input(\'请选择学校： \').strip() global school_obj if res == \'1\': school_obj=s1 elif res == \'2\': school_obj=s2 elif res == \'3\': break else: print(\'输入错误\') continue while True: print(\'请选择视图\'.center(30,\'*\')) cmd=input(\'1.学生视图\\n\' \'2.老师视图\\n\' \'3.管理员视图\\n\' \'4.返回上一级\\n\' \'5.退出选课系统: \').strip() if cmd == \'1\': student_view() elif cmd == \'2\': teacher_view() elif cmd == \'3\': admin_viwe() elif cmd == \'4\': break elif cmd == \'5\': exit() else: print(\'输入错误，请重新输入！\') continue return school_obj def student_view(): \'\'\'学生视图\'\'\' while True: tag = True print(\'欢迎进入学生视图，请选择功能\'.center(30,\'*\')) cmd=input(\'1.注册信息\\n\' \'2.登录\\n\' #循环选择功能 \'3.返回上级\\n\' \'4.退出程序： \').strip() if cmd == \'1\': while True: print(\'欢迎注册学生信息\'.center(30, \'-\')) name=input(\'name: \').strip() name_id=input(\'name_id: \').strip() #注册信息 age=input(\'age: \').strip() sex=input(\'sex: \').strip() if not name: print(\'姓名必填\') continue break student_obj=models.Student(name,name_id,age,sex) student_obj.save() elif cmd == \'2\': while tag: print(\'请登录\'.center(30,\'-\')) name = input(\'请输入用户名： \') name_id = input(\'请输入用户id： \') #登录，如果数据库中有这个人的文件，继续，否则打印用户不存在 res = os.listdir(settings.STUDENTDB_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.STUDENTDB_PATH, item) with open(file_path, \'rb\') as f: student_obj = pickle.load(f) if name == student_obj.name and name_id == student_obj.user_id: while tag: cmd=input(\'登录成功\\n\' \'1.交学费\\n\' \'2.选择班级\\n\' \'3.返回上级\\n\' \'4.退出程序\\n\' \'请选择功能： \').strip() if cmd == \'1\': #交学费 money = int(input(\'请输入缴纳金额： \')) student_obj.tuition+=money print(\'缴纳成功，学费余额为%s\' %student_obj.tuition) student_obj.save() elif cmd == \'2\': #选择班级 res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.CLASS_PATH, item) with open(file_path, \'rb\') as f: class_obj = pickle.load(f) print(\'班级名称：<%s> 班级所学课程<%s>\' % (class_obj.name, class_obj.course)) course_cmd = input(\'请选择班级：\') res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.CLASS_PATH, item) with open(file_path, \'rb\') as f: class_obj = pickle.load(f) if course_cmd == class_obj.name: for i in class_obj.student: if student_obj.id == i.id: print(\'班级已有此人\') #如果班级里已有此人，则结束村换 tag=False else: class_obj.student.append(student_obj) student_obj.student_class.append(class_obj) student_obj.save() class_obj.save() print(\'班级添加成功\') student_obj.tell_info() elif cmd == \'3\': tag=False elif cmd == \'4\': exit() else: continue else: print(\'用户不存在\') tag=False elif cmd == \'3\': return elif cmd == \'4\': exit() else:continue def teacher_view(): \'\'\'讲师视图\'\'\' tag = True #添加一个标志位 while tag: print(\'请登录\'.center(30,\'-\')) name=input(\'请输入用户名： \').strip() name_id=input(\'请输入用户id： \').strip() res = os.listdir(settings.TEACHERDB_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.TEACHERDB_PATH, item) with open(file_path, \'rb\') as f: teacher_obj = pickle.load(f) if name == teacher_obj.name and name_id == teacher_obj.user_id: while tag: print(\'欢迎进入讲师视图\'.center(30,\'*\')) cmd=input(\'1.管理班级\\n\' \'2.选择上课班级\\n\' \'3.查看班级学员列表\\n\' \'4.修改学员成绩\\n\' \'5.返回上一级\\n\' \'6.退出选课系统\\n\' \'请选择功能： \').strip() if cmd == \'1\': for i in teacher_obj.teacher_class: i.tell_info() elif cmd == \'2\': res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.CLASS_PATH, item) with open(file_path, \'rb\') as f: class_obj = pickle.load(f) print(\'班级名称：<%s> 班级所学课程<%s>\' % (class_obj.name, class_obj.course)) class_cmd = input(\'请选择班级：\') res = os.listdir(settings.CLASS_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.CLASS_PATH, item) with open(file_path, \'rb\') as f: class_obj = pickle.load(f) if class_obj.name == class_cmd: class_obj.teacher.append(teacher_obj) teacher_obj.teacher_class.append(class_obj) teacher_obj.save() class_obj.save() teacher_obj.tell_info() elif cmd == \'3\': for i in teacher_obj.teacher_class: for j in i.student: j.tell_info() elif cmd == \'4\': name=input(\'请输入想要修改的学生姓名：\').strip() name_id=input(\'请输入学生id： \').strip() num=int(input(\'请输入要修改的成绩： \').strip()) res = os.listdir(settings.STUDENTDB_PATH) for item in res: file_path = r\'%s\\%s\' % (settings.STUDENTDB_PATH, item) with open(file_path, \'rb\') as f: student_obj = pickle.load(f) if name == student_obj.name and name_id == student_obj.user_id: student_obj.grade+=num print(\'%s 的成绩已修改为 %s\' %(student_obj.name,num)) student_obj.save() elif cmd == \'5\': tag=False elif cmd == \'6\': exit() else: continue def admin_viwe(): \'\'\'管理员视图\'\'\' print(\'请用管理员的身份登录，用户名：sam，密码：666\'.center(30,\'*\')) #管理员有固定的用户名密码 name=input(\'请输入用户名： \') password=input(\'请输入密码： \') if name == \'sam\' and password == \'666\': while True: print(\'欢迎进入管理员视图\'.center(30,\'-\')) cmd=input(\'1.创建讲师\\n\' \'2.创建班级\\n\' \'3.创建课程\\n\' \'4.返回\\n\' \'5.退出选课系统\\n\' \'请选择功能: \') if cmd == \'1\': name=input(\'请输入讲师姓名： \').strip() user_id=input(\'请输入讲师id： \').strip() age=input(\'请输入讲师年纪： \').strip() sex=input(\'请输入讲师性别： \').strip() salary=input(\'请输入讲师薪资： \').strip() if not name: print(\'名字不能为空\') continue teacher = school_obj.create_teacher(name,user_id,age,sex,salary) teacher.save() school_obj.save() print(\'%s 老师的信息创建成功\' %teacher.name) teacher.tell_info() elif cmd == \'2\': name = input(\'请输入班级名： \').strip() course = input(\'请输入班级课程： \').strip() if not name or not course: print(\'输入错误\') continue class_obj=school_obj.create_class(name,course) class_obj.save() school_obj.save() print(\'%s 班级创建成功\' %class_obj.name) class_obj.tell_info() elif cmd == \'3\': course = input(\'请输入课程名字： \').strip() price = input(\'请输入课程价钱： \').strip() period = input(\'请输入课程周期： \').strip() if not course or not price or not period: print(\'输入错误\') continue course_obj = school_obj.create_course(course,price,period) course_obj.save() school_obj.save() print(\'%s 课程创建成功\' %course_obj.course) course_obj.tell_course() elif cmd == \'4\': return elif cmd == \'5\': exit() else: continue else: print(\'用户名密码错误\') if __name__ == \'__main__\': func()
#! /usr/bin/env python # -*- coding: utf-8 -*- # __author__ = "Sam" # Date: 2017/7/4 from conf import settings import pickle import hashlib import os class School: \'\'\'学校类\'\'\' def __init__(self,school_name,school_site): self.school_name=school_name self.school_site=school_site self.school_courses=[] #为学校所有的课程创建一个空列表 self.school_terchers=[] #创建一个空列表存放老师 self.school_class=[] #创建一个空列表存放班级 def create_class(self,name,course): \'\'\'创建班级\'\'\' class_obj=Class(name,course) self.school_class.append(class_obj) return class_obj def create_course(self,course,price,period): \'\'\'创建课程\'\'\' course_obj=Course(course,price,period) self.school_courses.append(course_obj) return course_obj def create_teacher(self,name,user_id,age,sex,salary): \'\'\'创建老师\'\'\' teacher_obj=Teacher(name,user_id,age,sex,salary) self.school_terchers.append(teacher_obj) return teacher_obj def create_student(self,name,user_id,age,sex,classroom): \'\'\'创建学生\'\'\' student_obj=Student(name,user_id,age,sex) classroom.student.append(student_obj) return student_obj def save(self): \'\'\'保存信息\'\'\' with open(r\'%s\\%s\' %(settings.SCHOOL_PATH,self.school_name),\'wb\') as f: pickle.dump(self,f) class Class: \'\'\'班级类\'\'\' def __init__(self,name,course): self.name=name self.teacher=[] self.course=course self.student=[] def tell_info(self): \'\'\'查看班级信息\'\'\' print(\'\'\' -------%s info--------- name:%s teacher:%s course:%s student:%s \'\'\' %(self.name,self.name,self.teacher,self.course,self.student)) def save(self): \'\'\'保存班级信息\'\'\' with open(r\'%s\\%s\' %(settings.CLASS_PATH,self.name),\'wb\') as f: pickle.dump(self,f) class Course: \'\'\'课程类\'\'\' def __init__(self,course,price,period): self.course=course self.price=price self.period=period def tell_course(self): \'\'\'查看课程信息\'\'\' print(\'\'\' --------%s info--------- COURSE:%s PRICE:%s PERIOD:%s \'\'\' %(self.course,self.course,self.price,self.period)) def save(self): \'\'\'以上是关于选课系统作业的主要内容，如果未能解决你的问题，请参考以下文章