[python]选课系统

选课系统

 

1.学校视图

创建班级；创建课程；创建老师；显示班级；显示课程；显示老师

 

2.教师视图

显示班级；显示班级学生

 

3.学生视图

注册

程序包含五个类：学校，课程，班级，老师，学生

班级中关联课程和学生，

老师中关联所教的班级

一个班级一个课程一个老师，

一个课程可建多个班级

github：https://github.com/nasnan/CourseSystem

/conf/common.py

def checkInput(list):    while 1:        inputItemp = input()        if inputItemp in list:            return inputItemp        else:            print("输入错误，请重新输入")def checkRepeat(item,list,name):    if item in list:        print("%s已存在，输入y修改现有数据，输入q返回" %name)        chooseList = ["y", "q"]        choose = checkInput(chooseList)        if choose == "y":            return 1        elif choose == "q":            return 0def wait():    input("输入任意键返回")

/conf/settings.py

def checkInput(list):    while 1:        inputItemp = input()        if inputItemp in list:            return inputItemp        else:            print("输入错误，请重新输入")def checkRepeat(item,list,name):    if item in list:        print("%s已存在，输入y修改现有数据，输入q返回" %name)        chooseList = ["y", "q"]        choose = checkInput(chooseList)        if choose == "y":            return 1        elif choose == "q":            return 0def wait():    input("输入任意键返回")

/core/star.py

from main import *start = start()start.welcome()

/core/main.py

import sysimport osBASE_DIR =os.path.dirname(os.path.dirname(os.path.abspath(__file__)))sys.path.append(BASE_DIR)from conf.settings import *from conf.common import *from database.dbapi import *from modules.school import Schoolclass start(object):    def welcome(self):        choose_dict ={            "1": schoolManage,            "2":teacherManage,            "3":studentManage,            "q":exit        }        while 1:            print("请选择：\n1.学校视图\n2.教师视图\n3.学生视图\nq.退出")            choose = checkInput(choose_dict)            choose_dict[choose]()# 学校视图class schoolManage(object):    def __init__(self):        self.school_db = load_data_from_db(database_dir)    #将本地数据读到self.school_db        self.welcome()    def welcome(self):        choose_dict = {            "1":self.createClass,            "2":self.createCourse,            "3":self.createTeacher,            "4":self.showClass,            "5":self.showCourse,            "6":self.showTeacher,            "q":exit        }        while 1 :            print("请选择:\n1.创建班级\n2.创建课程\n3.创建老师\n4.显示班级\n5.显示课程\n6.显示老师\nq.退出")            choose = checkInput(choose_dict)            choose_dict[choose]()            wait()    def saveChange(self):        write_new_to_db(database_dir, self.school_db)    def createClass(self):        className = input("请输入班级号：")        if checkRepeat(className,self.school_db.schoolClass,"班级") == 0:            return 0        courseList = self.school_db.schoolCourse        self.showCourse()        print("请输入该班级关联的课程：")        classCourse = checkInput(courseList)        courseObj = self.school_db.schoolCourse[classCourse]        self.school_db.createClass(className,courseObj)        print("创建成功！")        self.saveChange()    def createCourse(self):        courseName = input("请输入课程名字：")        if checkRepeat(courseName,self.school_db.schoolCourse,"课程") == 0:            return 0        courseTime = input("请输入课程课时：")        coursePrice = input("请输入课程价格：")        self.school_db.createCourse(courseName,courseTime,coursePrice)        print("创建成功！")        self.saveChange()    # 创建老师    def createTeacher(self):        teacherName = input("请输入老师姓名：")        if checkRepeat(teacherName,self.school_db.schoolTeacher,"老师") == 0:            return 0        busyClass = set()        for tea in self.school_db.schoolTeacher:            for cla in self.school_db.schoolTeacher[tea].teachClass:                busyClass.add(cla)        while 1:            print("请输入任课班级")            self.showClass()            classNumber = checkInput(self.school_db.schoolClass)            if classNumber not in busyClass:                break            else:                print("此班级已有任课老师！")        classObj = self.school_db.schoolClass[classNumber]        self.school_db.createTeacher(teacherName,classObj)        print("创建成功！")        self.saveChange()    def showClass(self):        self.school_db.showClass()    def showCourse(self):        self.school_db.showCourse()    def showTeacher(self):        self.school_db.showTeacher()# 老师视图class teacherManage(object):    def __init__(self):        school_db = load_data_from_db(database_dir)        self.teacher_db = school_db.schoolTeacher        self.welcome()    def welcome(self):        print("请输入老师姓名:")        teacherName = checkInput(self.teacher_db)        self.teacherObj = self.teacher_db[teacherName]        self.class_list = self.teacherObj.teachClass        print("wlecome!")        while 1:            choose_dic = {                "1":self.showClass,                "2":self.showStudent,                "q":exit            }            print("请选择：\n1.查看所教班级\n2.查看班级学生\nq.退出")            choose = checkInput(choose_dic)            choose_dic[choose]()            wait()    def showClass(self):        print("所教班级有：")        for cla in self.class_list:            print(self.class_list[cla].className)    def showStudent(self):        print("选择要查看的班级：")        className = checkInput(self.class_list)        classObj = self.class_list[className]        print("%s 课程：%s 学生列表：%s" %(classObj.className,classObj.classCourse.courseName,classObj.classStudent))# 学生视图class studentManage(object):    def __init__(self):        self.school_db = load_data_from_db(database_dir)        self.student_list = self.school_db.schoolStudent        self.welcome()    def welcome(self):        while 1:            print("请选择：\n1.注册\n2.登陆\nq.退出")            choose_dict = {                "1":self.signUp,                "q":exit            }            choose = checkInput(choose_dict)            choose_dict[choose]()    # 注册    def signUp(self):        while 1:            studentName = input("请输入名字：")            if studentName not in self.student_list:                break            else:                print("名字已存在！")        self.school_db.showClass()        print("请选择班级：")        className = checkInput(self.school_db.schoolClass)        courseObj = self.school_db.schoolClass[className].classCourse        print("此班级的课程%s课时为：%s，价格为%s。" %(courseObj.courseName,courseObj.courseTime,courseObj.coursePrice))        print("输入y确认，q退出！")        choose_list = ["q","y"]        choose = checkInput(choose_list)        if choose == "y":            self.school_db.createStudent(studentName,className)            self.saveChange()            print("注册成功！")        else:            exit()    def saveChange(self):        write_new_to_db(database_dir, self.school_db)

/database/dbapi.py

import pickle# 加载数据def load_data_from_db(dbname):    dbtemp = open(dbname,'rb')    p =pickle.load(dbtemp)    dbtemp.close()    return p# 写入数据库def write_new_to_db(dbname,data):    dbtemp = open(dbname,'wb')    p = pickle.dump(data,dbtemp)    dbtemp.close()

/database/initDb.py

import sysimport osBASE_DIR =os.path.dirname(os.path.dirname(os.path.abspath(__file__)))sys.path.append(BASE_DIR)from modules.school import Schoolfrom dbapi import *school_Db = School("sch1")write_new_to_db("database.db",school_Db)

/modules/classes.py

class Class(object):    def __init__(self,className,classCourse):        self.className = className        self.classCourse = classCourse        self.classStudent = {}    def addStudent(self,studentName,studentObj):        self.classStudent[studentName] = studentObj

/database/major.py

class Course(object):    def __init__(self,courseName,courseTime,coursePrice):        self.courseName = courseName        self.courseTime = courseTime        self.coursePrice = coursePrice

/database/school.py

from modules.classes import Classfrom modules.major import Coursefrom modules.student import Studentfrom modules.teacher import Teacherclass School(object):    def __init__(self,schoolName):        self.schoolName = schoolName        self.schoolCourse = {}        self.schoolClass = {}        self.schoolTeacher = {}        self.schoolStudent = {}    # 创建课程    def createCourse(self,courseName,courseTime,coursePrice):        courseObj = Course(courseName,courseTime,coursePrice)        self.schoolCourse[courseName] = courseObj    # 创建班级    def createClass(self,className,courseObj):        classObj = Class(className,courseObj)        self.schoolClass[className] = classObj    # 创建老师    def createTeacher(self,teacherName,teachClass):        teacherObj = Teacher(teacherName)        teacherObj.teacherAddClass(teachClass.className,teachClass)   #给老师分班级        self.schoolTeacher[teacherName] = teacherObj    # 学生注册    def createStudent(self,studentName,className):        studentObj = Student(studentName)        classObj = self.schoolClass[className]        self.schoolStudent[studentName] = studentObj    # 学校学生字典里加新学生        classObj.addStudent(studentName,studentObj)     # 班级类中加学生        self.schoolClass[className] = classObj      # 更新学校的班级字典    # 显示课程    def showCourse(self):        for course in self.schoolCourse:            course = self.schoolCourse[course]            print("课名：%s 课时：%s 价格：%s" %(course.courseName,course.courseTime,course.coursePrice))    # 显示班级    def showClass(self):        for oneClass in self.schoolClass:            oneClass = self.schoolClass[oneClass]            stuList = []            for stu in oneClass.classStudent:                stuList.append(oneClass.classStudent[stu].studentName)            print("班级:",oneClass.className," 课程:",oneClass.classCourse.courseName," 学生:",stuList)    # 显示老师    def showTeacher(self):        for teacher in self.schoolTeacher:            teacher = self.schoolTeacher[teacher]            cla = []            for classes in teacher.teachClass:                cla.append(teacher.teachClass[classes].className)            print("姓名：%s 所教班级：%s" %(teacher.teacherName,cla))

/database/student.py

class Student(object):    def __init__(self,studentName):        self.studentName = studentName

/database/teacher.py

class Teacher(object):    def __init__(self,teacherName):        self.teacherName = teacherName        self.teachClass = {}    def teacherAddClass(self,classname,classObj):        self.teachClass[classname] = classObj