Python全栈开发：选课系统实例
2024-10-07 04:43:36
程序目录：
- bin文件夹下为可执行文件：administrator，students
- config文件夹下为设置文件，涉及系统参数配置：setting
- db文件夹为数据类文件，涉及系统的输入输出数据：admin,students
- lib文件夹下为公用模块文件
- log为日志文件夹
- bin文件夹
- administrator
#!/usr/bin/env python
# -*- coding;utf-8 -*- import random
import time
import pickle
import os
import sys
from config import settings
from lib import models
from lib.models import *
sys.path.append(os.path.dirname(os.path.dirname(__file__))) def create_course(admin_obj):
teacher_list = pickle.load(open(settings.TEACHER_DB_DIR, "rb"))
for num, item in enumerate(teacher_list, 1):
print(num, item.name, item.age, item.create_time, item.create_admin.username)
Course_list = []
while True:
name = input("请选择课程名称...：")
if name == "q":
break
cost = input("请选择课时费...：")
if cost == "q":
break
num = input("选择老师（序号）：")
if num == "q":
break
obj = models.Course(name, cost, teacher_list[int(num) - 1], admin_obj)
Course_list.append(obj) if os.path.exists(settings.COURSE_DB_DIR):
exists_list = pickle.load(open(settings.COURSE_DB_DIR, "rb"))
Course_list.extend(exists_list)
pickle.dump(Course_list, open(settings.COURSE_DB_DIR, "wb")) def create_teacher(admin_obj):
teacher_list = []
while True:
teacher_name = input("请输入老师姓名(q表示退出)：")
if teacher_name == "q":
break
teacher_age = input("请输入老师年龄：")
obj = models.Teacher(teacher_name, teacher_age, admin_obj)
teacher_list.append(obj)
if os.path.exists(settings.TEACHER_DB_DIR):
exists_list = pickle.load(open(settings.TEACHER_DB_DIR, "rb"))
teacher_list.extend(exists_list)
pickle.dump(teacher_list, open(settings.TEACHER_DB_DIR, "wb")) def login(user, pwd):
if os.path.exists(os.path.join(settings.BASE_ADMIN_DIR, user)):
# 从文件中将管理员对象读取出来（里面封装了用户信息以及提供了登录方法）
admin_obj = pickle.load(open(os.path.join(settings.BASE_ADMIN_DIR, user), "rb"))
if admin_obj.login(user, pwd):
print("登陆成功！")
while True:
se1 = input("1、创建老师；2、创建课程；(q表示退出)\n>>>")
if se1 == '1':
create_teacher(admin_obj)
elif se1 == '2':
create_course(admin_obj)
elif se1 == "q":
break
return 2
else:
return 1
else:
return 0 def register(user, pwd):
admin_obj = models.Admin()
admin_obj.register(user, pwd) def main():
inp = input("1、管理员登录；2、管理员注册;(q表示退出) \n>>>")
while True:
if inp == "1":
user = input("请输入用户名：")
pwd = input("请输入密码：")
ret = login(user, pwd)
if ret == 1:
print("用户名或密码错误！")
elif ret == 0:
print("用户不存在！")
elif ret == 2:
print("退出成功！")
break
elif inp == "2":
user = input("请输入用户名：")
pwd = input("请输入密码：")
register(user, pwd)
print("注册成功!")
elif inp == "q":
print("退出成功!")
break if __name__ == "__main__":
main() - students
#!/usr/bin/env python
# -*- coding;utf-8 -*-
import random
import time
from lib import models
import os
import sys
import pickle
from config import settings
from lib.models import Course, Admin, Teacher
sys.path.append(os.path.dirname(os.path.dirname(__file__))) def course_info(student_obj):
course_list = pickle.load(open(settings.COURSE_DB_DIR, "rb"))
for num, item in enumerate(student_obj.course_list, 1):
print(num, item.course_name, item.cost, item.teacher_obj.name) def select_course(student_obj):
"""
学生选课
:param student_obj:
:return:
"""
course_list = pickle.load(open(settings.COURSE_DB_DIR, "rb"))
for num, item in enumerate(course_list, 1):
print(num, item.course_name, item.cost, item.teacher_obj.name)
while True:
num = input("请选择课程（q退出）\n>>>")
if num == "q":
break
select_course_obj = course_list[int(num) - 1]
if select_course_obj not in student_obj.course_list:
student_obj.course_list.append(select_course_obj)
pickle.dump(student_obj, open(os.path.join(settings.BASE_STUDENTS_DIR, student_obj.username), "wb")) def register(user, pwd):
"""
学生注册
:param user:
:param pwd:
:return:
"""
obj = models.Students()
obj.register(user, pwd) def login(user, pwd):
"""
学生登录
:param user:
:param pwd:
:return:
"""
if os.path.exists(os.path.join(settings.BASE_STUDENTS_DIR, user)):
student_obj = pickle.load(open(os.path.join(settings.BASE_STUDENTS_DIR, user), "rb"))
while True:
if student_obj.login(user, pwd):
inp = input("1、选课；2、上课；3、查看课程信息（q表示退出！）\n>>>")
if inp == "1":
select_course(student_obj)
elif inp == "3":
course_info(student_obj)
elif inp == '2':
pass
elif inp == 'q':
break
else:
print("用户名或密码错误!")
return 1
else:
print("用户不存在")
return 0 def main():
inp = input("1、登录；2、注册；\n>>>")
user = input("请输入用户名：\n>>>")
pwd = input("请输入密码：\n>>>")
if inp == "1":
ret = login(user, pwd)
elif inp == '2':
ret = register(user, pwd)
if ret:
print("注册成功!") if __name__ == "__main__":
main()
- config配置文件
#!/usr/bin/env python
# -*- coding;utf-8 -*-
import os BASE_DIR = os.path.dirname(os.path.dirname(__file__)) BASE_ADMIN_DIR = os.path.join(BASE_DIR, "db", "admin") BASE_STUDENTS_DIR = os.path.join(BASE_DIR, "db", "students") TEACHER_DB_DIR = os.path.join(BASE_DIR, "db", "teacher_list") COURSE_DB_DIR = os.path.join(BASE_DIR, "db", "course_list") LOG_PATH = os.path.join(BASE_DIR, "log") - db数据文件：用来存放管理员和学生的注册用户名密码，以及选课开课信息。注意：开课信息和学生选课信息不能混淆，注意存放路径
- lib公用模块文件
#!/usr/bin/env python
# -*- coding;utf-8 -*-
import random
import time
import pickle
import os
from config import settings class Teacher:
"""
封装老师的相关信息
"""
def __init__(self, name, age, admin):
self.name = name
self.age = age
self.__assets = 0
self.create_time = time.strftime("%Y-%m-%d %H:%M:%S")
self.create_admin = admin def gain(self, cost):
"""
增加资产
:param cost: 增加的数量
:return: 收入
"""
self.__assets += cost def decrease(self, cost):
"""
减少资产
:param cost: 减少的数量
:return: 收入
"""
self.__assets -= cost class Admin:
"""
封装管理员的信息
"""
def __init__(self):
self.username = None
self.password = None def login(self, user, pwd):
"""
管理员登录
:param user: 用户名
:param pwd: 密码
:return:
"""
if self.username == user and self.password == pwd:
return True
else:
return False def register(self, user, pwd):
"""
管理员注册
:param user:
:param pwd:
:return:
"""
self.username = user
self.password = pwd path = os.path.join(settings.BASE_ADMIN_DIR, self.username) pickle.dump(self, open(path, "xb"))
return True class Course:
"""
课程相关信息
"""
def __init__(self, course_name, cost, teacher_obj, admin ):
self.course_name = course_name
self.cost = cost
self.teacher_obj = teacher_obj
self.create_time = time.strftime("%Y-%m-%d %H:%M:%S")
self.create_admin = admin def have_lesson(self):
"""
课程上课，自动给相关联的任课老师增加课时费
:return: 课程内容返回给上课者
"""
self.teacher.gain(self.cost)
content = random.randrange(10, 100) class Students:
"""
学生相关信息
"""
def __init__(self):
self.username = None
self.password = None
self.course_list = []
self.study_dict = {} def select_course(self,course_obj):
"""
学生选课
:param course_obj:
:return:
"""
self.course_list.append(course_obj) def study(self,course_obj):
"""
学生上课
:param course_obj:
:return:
"""
class_result = course_obj.have_lesson()
if course_obj in self.study_dict.keys():
self.study_dict[course_obj].append(class_result)
else:
self.study_dict[course_obj] = [class_result,] def login(self, user, pwd):
"""
学生登录
:param user:
:param pwd:
:return:
"""
if self.username == user and self.password == pwd:
return True
else:
return False def register(self, user, pwd):
"""
学生注册
:param user:
:param pwd:
:return:
"""
self.username = user
self.password = pwd path = os.path.join(settings.BASE_STUDENTS_DIR, self.username)
try:
pickle.dump(self, open(path, "xb"))
except Exception as f:
return False
else:
return True - 日志文件：保存系统相关操作记录
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