Python选课系统开发程序

#!/usr/bin/env python# -*- coding:utf-8 -*-#-Author-Lian import pickle,osBASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))#数据地址__db_main = BASE_DIR + r"/database/main_dict"__db_teacher = BASE_DIR + r"/database/teacher_dict" class School(object): #创建学校 def __init__(self,name,addr): self.name = name self.addr = addr def cat_school(self): print("学校名：【%s】/t地址：【%s】"%(self.name,self.addr))  def hire_teacher(self,dict,course,teacher,file): #数据库添加讲师信息 dict[self][course] = {"teacher":teacher} file_oper(file,"wb", dict)  def create_course(self,dict,course,file): # 数据库添加课程资料 dict[self][course]={} file_oper(file,"wb", dict) def create_grade(self,dict,teacher_dict,course,grade,teacher,file1,file2): #数据库添加班级信息 dict[self][course]["grade"] = grade file_oper(file1, "wb", dict) teacher_dict[teacher] = {"grade":grade} file_oper(file2, "wb", teacher_dict)class Course(): #创建课程 def __init__(self,name,price,time): self.name = name self.price = price self.time = time def cat_course(self): #查看课程信息 print("课程：【%s】/t价格：【￥%s】/t周期：【%s个月】"  %(self.name,self.price,self.time))class Grade(): # 创建班级 def __init__(self,name,course,teacher): student = set([]) self.name = name self.course = course self.teacher = teacher self.student = student  def cat_grade(self): #查看班级信息 print("班级：【%s】/t课程：【%s】/t讲师：【%s】"  %(self.name, self.course, self.teacher))  def add_student(self,student_name,dict,teacher,file): self.student.add(student_name) dict[teacher]={"grade":self} file_oper(file, "wb", dict)class People(): def __init__(self,name,age): self.name = name self.age = ageclass Teacher(People): # 创建讲师 def __init__(self,name,age,school,course,role="讲师"): super(Teacher,self).__init__(name,age) self.role = role self.school = school self.course = course def cat_teacher(self): #查看老师资料和课程 print('课程【%s】/t讲师【%s】'%(self.course,self.name))def file_oper(file,mode,*args): #数据库写入、读取操作 if mode == "wb": with open(file, mode) as f:  dict = args[0]  f.write(pickle.dumps(dict)) if mode == "rb": with open(file, mode) as f:  dict = pickle.loads(f.read())  return dictdef information(dict,mode,*args): '''通过匹配mode模式，打印相应的输出信息''' if args: dict_info, set_info = {}, args[0] else: dict_info,set_info = {},set([]) if dict: for key in dict:  if mode == "course":  key.cat_course()  if mode == "main":  key.cat_school()  if mode == "teacher" and key == "teacher":  dict[key].cat_teacher()  # dict_info[key] = dict[key]  set_info.add(dict[key].name)  if mode == "grade" and key == "grade":  dict[key].cat_grade()  set_info.add(dict[key].name)  if mode == "teacher_center":  pass  if type(key) != str: #key值不是字符串  dict_info[key.name] = key return dict_info,set_info def school_center(): #学校管理中心 Flag = True while Flag: dict_main = file_oper(__db_main,"rb") #主字典 res_dict = information(dict_main,"main")[0] #打印学校信息 school_name = input("/33[34;0m输入要选择的学校名/33[0m：").strip() if school_name in res_dict:  school = res_dict[school_name]  #匹配选择的学校  while Flag:  print("/33[32;1m欢迎进入【%s】学校/33[0m".center(50, "*")%school.name)  choice = options(list_school) #打印当前选项  if choice == "1":   while True:   print("/33[32;0m学校【%s】目前已经有的班级信息/33[0m".center(40, "-")%school.name)   teacher_dict = file_oper(__db_teacher,"rb")   res_course = information(dict_main[school], "None")[0]   set_info = set([])   if res_course: # 打印课程与讲师对应关系    for i in res_course:    k = res_course[i]    res_grade = information(dict_main[school][k], "grade",set_info)[1]   if_cont = input("/n/33[34;0m是否要创建班级 【y】创建 【b】退出/33[0m:")   if if_cont == "y":    grade_name = input("/33[34;0m输入要创建班级的名称/33[0m:").strip()    course_name = input("/33[34;0m输入要班级要上的课程/33[0m:").strip()    if course_name in res_course:    course = res_course[course_name]    if dict_main[school][course]:     teacher = dict_main[school][course]["teacher"]     if grade_name not in res_grade:     grade = Grade(grade_name, course_name, teacher.name)     school.create_grade(dict_main, teacher_dict, course, grade, teacher, __db_main,       __db_teacher)     else:     print("/33[31;0m错误：当前班级已经存在/33[0m")    else:     print("/33[31;0m错误：当前课程还没有讲师/33[0m")    else:    print("/33[31;0m错误:课程【%s】不存在，请先创建课程/33[0m" % course_name)   if if_cont == "b":    break   if choice == "2":   #招聘讲师   while True:   print("/33[32;0m学校【%s】目前已经有的课程与讲师/33[0m".center(40, "-")%school.name)   res_course = information(dict_main[school],"None")[0]   set_info = set([])   if res_course:   #打印课程与讲师对应关系    for i in res_course:    k = res_course[i]    res_teacher = information(dict_main[school][k], "teacher",set_info)[1]    if not res_teacher:     print("课程【%s】/t讲师【None】" %(i))   if_cont = input("/n/33[34;0m是否要招聘讲师 【y】招聘 【b】退出/33[0m:")   if if_cont == "y":    teacher_name = input("/33[34;0m输入要招聘讲师的名字/33[0m:").strip()    teacher_age = input("/33[34;0m输入要招聘讲师的年龄/33[0m:").strip()    course_name = input("/33[34;0m输入讲师【%s】要授课的课程/33[0m:"%teacher_name).strip()    if course_name in res_course:     course = res_course[course_name] #创建讲师并写入数据库     if teacher_name not in res_teacher:     teacher = Teacher(teacher_name,teacher_age,school.name,course_name)     school.hire_teacher(dict_main, course, teacher, __db_main)     else:     print("/33[31;0m错误:教师【%s】已经被聘用/33[0m" %teacher_name)    else:    print("/33[31;0m错误:课程【%s】不存在，请先创建课程/33[0m" %course_name)   if if_cont == "b":    break  if choice == "3":   #创建课程   while True:   print("/33[32;0m学校【%s】目前已经有的课程/33[0m".center(40,"-")%school.name)   res_dict = information(dict_main[school],"course")[0] #打印课程信息赋值给字典course_dict   if_cont = input("/n/33[34;0m是否要创建课程 【y】创建 【b】退出/33[0m:")   if if_cont == "y":    course_name = input("/33[34;0m输入要创建的课程/33[0m:").strip()    if course_name not in res_dict: #课程不存在，创建    price = input("/33[34;0m输入课程 【%s】 的价格/33[0m:" % (course_name))    time = input("/33[34;0m输入课程 【%s】 的周期（月）/33[0m:" % (course_name))    course = Course(course_name, price, time) #创建课程course    school.create_course(dict_main,course, __db_main) #关联学校和课程    else:     #课程存在    print("/33[31;0m错误：当前课程 【%s】 已经存在/33[0m" % (course_name))   if if_cont == "b":    break   if choice == "4":   Flag = False if Flag:  print("/33[31;0m错误：输入的学校 【%s】 不存在/33[0m"%(school_name))def teacher_center(): #讲师中心 print("/33[32;1m欢迎进入讲师中心/33[0m".center(50, "*")) teacher_dict = file_oper(__db_teacher, "rb") dict_info = information(teacher_dict,"teacher_center")[0] #验证登录 teacher_name = input("/n/33[34;0m输入要登录讲师的名字/33[0m:").strip() if teacher_name in dict_info:  while True:  print("/33[32;1m欢迎进入讲师【%s】的管理中心/33[0m".center(40, "*")%teacher_name)  choice = options(list_teacher)  teacher = dict_info[teacher_name]  grade = teacher_dict[teacher]["grade"]  if choice == "1":   print("/33[32;0m讲师【%s】的班级信息/33[0m".center(40,"-")%teacher.name)   print("学校【%s】/t课程【%s】/t班级【%s】/t"%(teacher.school,teacher.course,grade.name))   any = input("/n/33[34;0m输入任意键退出当前/33[0m:")  if choice == "2":   print("/33[32;0m讲师【%s】的班级学员列表/33[0m".center(40, "-") % teacher.name)   print("班级【%s】/n学员【%s】"%(grade.name,grade.student))   any = input("/n/33[34;0m输入任意键退出当前/33[0m:")  if choice == "3":   break else:  print("/33[31;0m错误：讲师【%s】 不存在/33[0m"%(teacher_name))def student_center(): #学员中心 print("/33[32;1m欢迎进入学员中心中心/33[0m".center(50, "*")) while True: choice = options(list_student)  #打印学生中心选项 if choice == "1":  student_name = input("/33[34;0m输入学员的名字/33[0m：")  dict = file_oper(__db_main, "rb")  teacher_dict = file_oper(__db_teacher,"rb")  school_dict = information(dict,"main")[0] #打印当前可选的学校  school_name = input("/33[34;0m输入要选择的学校名/33[0m：").strip()  if school_name in school_dict:  school = school_dict[school_name]  if dict[school]:   course_dict = information(dict[school],"course")[0] # 打印当前学校下的课程   course_name = input("/33[34;0m输入要选择的课程/33[0m：").strip()   if course_name in course_dict:   course = course_dict[course_name]   if dict[school][course].get("grade"):    for i in teacher_dict:    if course.name == i.course:     teacher = i     grade = teacher_dict[teacher]["grade"]    print("课程【%s】的费用为【%s】"%(course.name,course.price))    if_pay = input("/33[34;0m是否支付当前费用 支付【y】/33[0m:")    if if_pay == "y":  #上面全部匹配成功，选课成功    grade.add_student(student_name,teacher_dict,teacher,__db_teacher)    print("/33[31;0m选课成功/33[0m")    any = input("/n/33[34;0m输入任意键退出当前/33[0m:")   else:    print("/33[31;0m错误：课程没有班级/33[0m")   else:   print("/33[31;0m错误：课程不存在/33[0m")  else:   print("/33[31;0m错误：当前学校没有课程/33[0m") if choice == "2":  breakdef options(list): #打印可选择的操作模式，并返回选择值 for i, v in enumerate(list): print(i+1, v) choice = input("/33[34;0m选择要进入模式/33[0m:") return choice def start(): '''程序开始''' while True: print("/33[35;1m欢迎进入选课系统/33[0m".center(50, "#")) choice = options(list_main) #打印选项 if choice == "1":  student_center() #学生中心 if choice == "2":  teacher_center() #教师中心 if choice == "3":  school_center()  #学校中心 if choice == "4":  breakdef init_database(): '''数据库初始化，不存在则创建，存在跳过''' bj = School("北京","北京市") sh = School("上海","上海市") if not os.path.exists(__db_teacher): dict = {bj:{},sh:{}} file_oper(__db_main,"wb",dict) if not os.path.exists(__db_teacher): dict = {} file_oper(__db_teacher,"wb",dict)if __name__ == '__main__': init_database() #初始化数据库 list_main = ["学生中心", "讲师中心", "学校中心","退出"] list_school = ["创建班级", "招聘讲师", "创建课程","返回"] list_teacher = ["查看班级", "查看班级学员列表","返回" ] list_student = ["学员注册","返回"] start()