python学生选课系统

时间:2023-02-14 09:08:17
校园管理系统(02)
需求:
从“学生选课系统” 这几个字就可以看出来,我们最核心的功能其实只有 选课。
角色:
学生、管理员
功能:
登陆 : 管理员和学生都可以登陆,且登陆之后可以自动区分身份
选课 : 学生可以*的为自己选择课程
创建用户 : 选课系统是面向本校学生的,因此所有的用户都应该由管理员完
成
查看选课情况 :每个学生可以查看自己的选课情况,而管理员应该可以查看
所有学生的信息
工作流程:
登陆 :用户输入用户名和密码
判断身份 :在登陆成果的时候应该可以直接判断出用户的身份 是学生、讲师
还是管理员
学生用户 :对于学生用户来说,登陆的工作几乎不变
1、查看所有课程
2、选择课程
3、查看所选课程
4、退出程序
管理员用户:管理员用户也可以做更多的事情
1、创建课程
2、创建学生学生账号
3、查看所有课程
4、查看所有学生
5、查看所有学生的选课情况
# 讲师进阶需求
6、创建讲师
7、为讲师指定班级
8、创建班级
9、为学生指定班级
10、退出程序
讲师用户 :对于讲师用户来说,可以完成的功能如下
1、查看所有课程
2、查看所教班级
3、查看班级中的学生
4、退出程序

 

学生选课流程

  python学生选课系统

 

readme文件信息

python学生选课系统

 

 

 

python学生选课系统python学生选课系统
import os
import sys
base_path = os.path.dirname(os.path.dirname(__file__))
sys.path.append(base_path)
from core import cores

if __name__ == '__main__':
    cores.start()
bin下的start.py
python学生选课系统python学生选课系统
userinfo = r'D:\python_23\day07\db\userinfo'
courseinfo = r'D:\python_23\day07\db\courseinfo'
select_course = r'D:\python_23\day07\db\select_course'
gradeinfo = r'D:\python_23\day07\db\gradeinfo'
tearch_grade = r'D:\python_23\day07\db\tearch_grade'
student_grade = r'D:\python_23\day07\db\student_grade'
conf下的settings.py
python学生选课系统python学生选课系统
#登录
import hashlib
def md5(arg):  # 这是加密函数,将传进来的函数加密
    md5_pwd = hashlib.md5(bytes('123', encoding='utf-8'))
    md5_pwd.update(bytes(arg, encoding='utf-8'))
    return md5_pwd.hexdigest()  # 返回加密的数据

from conf import settings
def login():
    usr = input('please user:')
    pwd = input('please password: ')
    with open(settings.userinfo,'r') as f:
        for line in f:
            user,passwd,identify = line.strip().split('|')
            if user == usr and passwd == md5(pwd):
                print('登录成功')
                return {'user':user,'identify':identify}
        else:
            print('登录失败,输入正确的账号密码')
            return {'user': user, 'identify': None}
core下的auth.py
python学生选课系统python学生选课系统
#登录
import sys
import os
from core import auth
from conf import settings
import pickle

import hashlib
def md5(arg):  # 这是加密函数,将传进来的函数加密
    md5_pwd = hashlib.md5(bytes('123', encoding='utf-8'))
    md5_pwd.update(bytes(arg, encoding='utf-8'))
    return md5_pwd.hexdigest()  # 返回加密的数据

class Die:
    def show_select_courese(self):
        with open(settings.courseinfo,'rb') as f:
            while True:
                try:
                    obj = pickle.load(f)
                    print('课程名字:%s,课程价格:%s,课程周期:%s,教导老师:%s' % (obj.name, obj.price, obj.period, obj.tearch))
                except EOFError:
                    break
class Course:
    def __init__(self,name,price,period,tearch):
        self.name = name
        self.price = price
        self.period = period
        self.tearch = tearch

class Student:
    operat_list = [('查看可选课程','show_courese'),('选择课程','choose_course'),('查看已选课程','show_select_courese'),('退出','exit')]
    courses_list1 = []
    def __init__(self,name):
        self.name = name


    def show_courese(self):
        Die.show_select_courese(self.name)

    def choose_course(self):
        Die.show_select_courese(self.name)
        with open(settings.select_course, 'ab') as f1:
            cours = input('请选择要学习课程名字:')
            if cours in Student.courses_list1:
                print('课程已存在')
            else:
                Student.courses_list1.append(cours)
                pickle.dump({self.name: Student.courses_list1}, f1)
                print('用户%s,添加课程%s成功' % (self.name, cours))
                # pickle.dump({ret['user']:Student.courses_list1},f1)
                # print('用户%s,添加课程%s成功'%(ret['user'],cours))

    def show_select_courese(self):
        with open(settings.select_course, 'rb') as f1:
            while True:
                try:
                    obj = pickle.load(f1)
                    print(obj)
                except EOFError:
                    break

    def exit(self):
        exit('欢迎再来')

class Manager(Die):
    operat_list = [('创建课程', 'create_course'),
                   ('创建学生', 'create_student'),
                   ('查看可选课程', 'show_select_course'),
                   ('查看所有学生', 'show_select_student'),
                   ('查看所有学生和已选课程', 'show_stu_course'),
                   ('创建讲师', 'create_tearch'),
                   ('为讲师指定班级', 'tearch_grade'),
                   ('创建班级', 'create_grade'),
                   ('为学生指定班级', 'select_stu_grade'),
                   ('退出', 'exit')]
    def __init__(self,name):
        self.name = name

    def create_course(self):
        name = input('请输入课程:')
        price = input('价格:')
        period = input('周期:')
        tearch = input('tearch:')
        course = Course(name,price,period,tearch)
        with open(settings.courseinfo,'ab') as f:
            pickle.dump(course,f)
            print('课程创建成功')

    def create_student(self):
        user = input('请输入创建的学生名字: ')
        pwd = input('请输入密码: ')
        ret = input('输入学生的类别,例如Student:')
        if ret == 'Student':
            course = '\n%s|%s|%s'%(user,md5(pwd),ret)
            with open(settings.userinfo,'a') as f:
                f.write('%s'%course)
                print('%s创建成功'%user)
        else:
            print('您输入的不是Student')

    def show_select_course(self):
        Die.show_select_courese(self.name)

    def show_select_student(self):
        with open(settings.userinfo,'r') as f:
            for i in f:
                name,pwd,identify = i.strip().split('|')
            if identify == 'Manager' or identify == 'Tearch':
                pass
            else:
                print(name)

    def show_stu_course(self):
        with open(settings.select_course, 'rb') as f1:
            while True:
                try:
                    obj = pickle.load(f1)
                    for x,y in obj.items():
                        print('用户%s一共学习了%s课程'%(x,y))
                    # print(obj)
                except EOFError:
                    break

    def create_tearch(self):
        user = input('请输入创建的讲师名字: ')
        pwd = input('请输入密码: ')
        ret = input('输入讲师的类别,例如Tearch:')
        if ret == 'Tearch':
            course = '\n%s|%s|%s'%(user,md5(pwd),ret)
            with open(settings.userinfo,'a') as f:
                f.write('%s'%course)
                print('%s老师创建成功'%user)
        else:
            print('您输入的不是Student')

    def tearch_grade(self):
        grade_list = []
        with open(settings.userinfo,'r') as f:
            for line in f:
                name,pwd,identify = line.strip().split('|')
            with open(settings.gradeinfo,'rb') as f1:
                obj = pickle.load(f1)
                grade_list.append(obj)
                if identify == 'Tearch':
                    print('可以为%s老师分配班级有\n(%s)班'%(name,obj))
                    print('-------------')
                    grade = int(input('请输入班级号'))
                    with open(settings.tearch_grade,'ab') as f2:
                        pickle.dump({name:grade_list},f2)
                        print('%s老师已经为%s班的讲师'%(name,grade))

    def create_grade(self):
        grade = input('请输入您要创建的班级号')
        with open(settings.gradeinfo,'ab') as f:
            pickle.dump(grade,f)
            print('%s号班级已经创建成功'%grade)

    def select_stu_grade(self):
        stu_grade = []
        with open(settings.userinfo,'r') as f:
            with open(settings.gradeinfo, 'rb') as  f1:
                obj = pickle.load(f1)
            for line in f:
                name, pwd, identify = line.strip().split('|')
                if identify == 'Manager' or identify == 'Tearch':
                        pass
                else:
                    print('请为下面(%s)学生选择班级,\n可选班级有(%s)号班级\n'%(name,obj))
                    ret = input('请输入要选择的班级号')
                    # stu_grade.append('ret')
                    with open(settings.student_grade,'ab') as f3:
                        pickle.dump({name:ret},f3)
                        print('学生%s已经加入到%s班级'%(name,ret))

    def exit(self):
        exit('欢迎下次再来')

class Tearch(Die):
    operat_list = [('查看所有课程', 'select_course'),
                   ('查看所教班级', 'select_grade'),
                   ('查看班级中学生', 'select_grade_stu'),
                   ('退出', 'exit')]
    def __init__(self,name):
        self.name = name
    def select_course(self):
        Die.show_select_courese(self.name)

    def select_grade(self):
        with open(settings.tearch_grade,'rb') as f:
            obj = pickle.load(f)
            for x,y in obj.items():
                print('%s老师交的班级有%s'%(x,y))
    def select_grade_stu(self):
        with open(settings.student_grade,'rb') as f:
            obj = pickle.load(f)
            for x,y in obj.items():
                print('%s号班级里一共有%s位学生'%(y,x))

def start():
    ret = auth.login()
    if ret['identify']:
        cls = getattr(sys.modules[__name__],ret['identify'])
        obj = cls(ret['user'])
        while True:
            for index,i in enumerate(cls.operat_list,1):
                print(index,i[0])
            ind = int(input('please num'))
            print('----------------')
            func = cls.operat_list[ind-1][1]
            getattr(obj,func)()
            print('----------------')
core下的cores.py

db下的文件

courseinfo  ##课程名字数据文件
gradeinfo   ##班级号数据文件
select_course  ##选课数据文件
student_grade  ##学生所在班级数据文件
tearch_grade    ##老师所在班级数据文件
userinfo            ##存放用户密码和身份的数据文件  admin|4297f44b13955235245b2497399d7a93|Manager

log暂时没放