实现一个python选课系统实例

import sys,os    #程序主目录  BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))  print(BASE_DIR)    #添加环境变量  sys.path.append(BASE_DIR)    from core import main    if __name__ == '__main__':      a =main.Run()      a.interactive()

import hashlib  import time    def create_md():      m = hashlib.md5()      m.update(bytes(str(time.time()),encoding="utf-8"))      return m.hexdigest()

import sys,os       　　  import json　　　　　　#这里说一下json这个模块，java之中也有应用，所以一些数据也可以给java去用。  import pickle　　　　　    from bin import course  from core import uid    #数据库文件路径  db_DIR = course.BASE_DIR + r"db"  db_school = db_DIR + r"school"  db_teacher = db_DIR + r"teacher"  db_student = db_DIR + r"student"  db_classes = db_DIR + r"classes"  db_course = db_DIR + r"course"  db_admin = db_DIR + r"admin"  db_class_record = db_DIR + r"class_record"  db_class_grade = db_DIR + r"class_grade"    #基础类，主要包括文件的读写操作  class Baseclass(object):  #在python3中全部是新式类，但是建议还是这样写。在python2中存在经典类和新式类；例如：class Baseclass: 这种在python中是经典类，而class Baseclass(object):这样是新式类。有关它们的区别，我会在下一篇博客中具体说明。      def __init__(self):          pass      def save(self,type,dict):          filename = uid.create_md()          dict['uid'] = filename          file_path = "%s%s" %(db_DIR,type)          ab_file = "%s%s" %(file_path,filename)          if os.path.isdir(file_path):              with open(ab_file,"wb") as f:                  f.write(pickle.dumps(dict))                  if True:                      print(                      "-------",type,"创建成功","-------")                      for key in dict:                          print(key,":t",dict[key])      def seek_list(self,type,list):          filename = uid.create_md()          file_path = "%s%s" %(db_DIR,type)          ab_file = "%s%s" %(file_path,filename)          if os.path.isdir(file_path):              with open(ab_file,"wb") as f:                  f.write(pickle.dumps(list))                  if True:                      print(                      "-------",type,"创建成功","-------")                      for i in list:                          for key in i:                              print(key,i[key])                          print("n")          return True        def open(self,type):          all_data = []          db_path = "%s%s" %(db_DIR,type)          for i in os.listdir(db_path):              if os.path.isfile(os.path.join(db_path,i)):                  db_file = os.path.join(db_path,i)                  with open(db_file,"rb") as f:                      file_dict = pickle.load(f)                      all_data.append(file_dict)          return all_data    #admin类  class Admin(Baseclass):      def __init__(self):          Baseclass.__init__(self)      def create_school(self):          school_dict = {}          school_name = input("校名：")          school_address = input("地址：")          s1 = School(school_name, school_address)          school_dict["校名"] = s1.school_name          school_dict["地址"] = s1.school_address          Baseclass.save(self, "school", school_dict)      def create_teacher(self):          teacher_dict = {}          teacher_name = input("讲师姓名：")          teacher_salary = input("讲师工资：")          teacher_school = input("所属学校：")          t1 = Teacher(teacher_name, teacher_salary, teacher_school)          teacher_dict["姓名"] = t1.teacher_name          teacher_dict["工资"] = t1.teacher_salary          teacher_dict["所属学校"] = t1.teacher_school          print(teacher_dict)          Baseclass.save(self, "teacher", teacher_dict)      def create_student(self):          student_dict = {}          student_name = input("学员姓名：")          student_sex = input("学员性别：")          student_school = input("所属学校：")          student_classes = input("学员班级：")          st1 = Student(student_name, student_sex, student_school, student_classes)          student_dict["姓名"] = st1.student_name          student_dict["性别"] = st1.student_sex          student_dict["学校"] = st1.student_school          student_dict["班级"] = st1.student_classes          Baseclass.save(self, "student", student_dict)      def create_course(self):          course_dict = {}          course_name = input("课程名：")          course_period = input("周期：")          course_prices = input("价格：")          c1 = Course(course_name, course_period, course_prices)          course_dict["课程名"] = c1.course_name          course_dict["周期"] = c1.course_period          course_dict["价格"] = course_prices          Baseclass.save(self, "course", course_dict)      def create_classes(self):          classes_dict = {}          classes_name = input("班级名：")          classes_teachter = input("负责讲师：")          classes_course = input("所学课程：")          cs1 = Classes(classes_name, classes_teachter, classes_course)          classes_dict["班级名"] = cs1.classes_name          classes_dict["负责讲师"] = cs1.classes_teacher          classes_dict["课程"] = cs1.classes_course          Baseclass.save(self, "classes", classes_dict)    #School类  class School(Baseclass):      def __init__(self,school_name,school_address):          Baseclass.__init__(self)          self.school_name = school_name          self.school_address = school_address    #teacher类  class Teacher(Baseclass):      def __init__(self,teacher_name,teacher_salary,teacher_school):          Baseclass.__init__(self)          self.teacher_name = teacher_name          self.teacher_salary = teacher_salary          self.teacher_school = teacher_school      def create_class_record(self):          class_record = []          student_school = input("选择学校：")          student_classes = input("选择班级：")          student_times = input("课次：")          student_list = Baseclass.open(self,"student")          for i in student_list:              if i["学校"] == student_school and i["班级"] == student_classes:                  student_name = i["姓名"]                  student_status = input("%s 上课情况：" % student_name)                  i["上课情况"] = student_status                  i["课次"] = student_times                  class_record.append(i)          Baseclass.seek_list(self,"class_record",class_record)      def create_class_grade(self):          class_grade = []          student_school = input("选择学校：")          student_classes = input("选择班级：")          student_times = input("课次：")          student_list = Baseclass.open(self,"student")          for i in student_list:              if i["学校"] == student_school and i["班级"] == student_classes:                  student_name = i["姓名"]                  student_grade = input("%s 成绩：" % student_name)                  i["成绩"] = student_grade                  i["课次"] = student_times                  class_grade.append(i)          Baseclass.seek_list(self,"class_grade",class_grade)      def teacher_view_grade(self):          grade_list = []          student_school = input("校名：")          student_class = input("班级：")          student_times = input("课次：")          class_grade_list = Baseclass.open(self, "class_grade")          for i in class_grade_list:              for j in i:                  if j["学校"] == student_school and j["班级"] == student_class and j["课次"] == student_times:                      grade_list.append(j)          for i in grade_list:              for key in i:                  print(key,i[key])              print("n")        def tacher_view_record(self):          record_list = []          student_school = input("校名：")          student_class = input("班级：")          student_times = input("课次：")          class_record_list = Baseclass.open(self, "class_record")          for i in class_record_list:              for j in i:                  if j["学校"] == student_school and j["班级"] == student_class and j["课次"] == student_times:                      record_list.append(j)          for i in record_list:              for key in i:                  print(key,i[key])              print("n")    #classes类  class Course(Baseclass):      def __init__(self,course_name,course_period,course_prices):          Baseclass.__init__(self)          self.course_name = course_name          self.course_period = course_period          self.course_prices = course_prices    #student类  class Student(Baseclass):        def __init__(self,student_name,student_sex,student_school,student_classes):          Baseclass.__init__(self)          self.student_name = student_name          self.student_sex = student_sex          self.student_school = student_school          self.student_classes = student_classes      def student_registered(self):          student_dict = {}          print("欢迎进入学生注册系统")          student_name = input("注册姓名：")          student_sex = input("性别：")          student_school = input("学校：")          student_class = input("班级：")          st1 = Student(student_name,student_sex,student_school,student_class)          student_dict["姓名"] = st1.student_name          student_dict["性别"] = st1.student_sex          student_dict["学校"] = st1.student_school          student_dict["班级"] = st1.student_classes          Baseclass.save(self, "student", student_dict)      def student_pay_fees(self):          pass      def student_view_grade(self):          student_school = input("校名：")          student_class = input("班级：")          student_times = input("课次：")          student_name = input("姓名：")          class_grade_list = Baseclass.open(self,"class_grade")          for i in class_grade_list:              for j in i:                  if j["学校"] == student_school and j["班级"] == student_class and j["课次"] == student_times                       and j["姓名"] == student_name:                      for key in j:                          print(key,j[key])                      print("n")      def student_view_record(self):          student_school = input("校名：")          student_class = input("班级：")          student_times = input("课次：")          student_name = input("姓名：")          class_record_list = Baseclass.open(self,"class_record")          for i in class_record_list:              for j in i:                  if j["学校"] == student_school and j["班级"] == student_class and j["课次"] == student_times                       and j["姓名"] == student_name:                      for key in j:                          print(key,j[key])                      print("n")    #课程类  class Classes(Baseclass):      def __init__(self,classes_name,classes_teachter,classes_course):          Baseclass.__init__(self)          self.classes_name = classes_name          self.classes_teacher = classes_teachter          self.classes_course = classes_course    #管理员视图，继承Admin类  class Admin_view(Admin):      def __init__(self):          Admin.__init__(self)      def auth(self,username,password):          admin_file = "%s/%s.json" %(db_admin,username)          if os.path.isfile(admin_file):              with open(admin_file, 'r') as f:                  admin_data = json.load(f)              if admin_data["name"] == username and admin_data["password"] == password:                  return True              else:                  print("用户名或密码错误")      def login(self):          menu = u'''          ------- 欢迎进入管理视图 ---------              33[32;1m 1.  校区管理              2.  讲师管理              3.  学员管理              4.  课程管理              5.  返回              33[0m'''          menu_dic = {              '1': Admin_view.school_manager,              '2': Admin_view.teacher_manager,              '3': Admin_view.student_manager,              '4': Admin_view.course_manager,              '5': "logout",          }          username = input("输入用户名:").strip()          password = input("输入密码:").strip()          auth = Admin_view.auth(self,username,password)          if auth:              exit_flag = False              while not exit_flag:                  print(menu)                  option = input("请选择：").strip()                  if option in menu_dic:                      if int(option) == 5:                          exit_flag = True                      else:                          print(menu_dic[option])                          menu_dic[option](self)                  else:                      print("33[31;1m输入错误，重新输入33[0m")      def school_manager(self):          exit_flag = False          while not exit_flag:              print("""                  ------- 欢迎进入校区管理 ---------                  33[32;1m1.  创建校区                  2.  创建班级                  3.  返回                  33[0m              """)              option = input("请选择：").strip()              if int(option) == 1:                  Admin.create_school(self)              elif int(option) == 2:                  Admin.create_classes(self)              else:                  exit_flag = True      def teacher_manager(self):          exit_flag = False          while not exit_flag:              print("""                  ------- 欢迎进入讲师管理 ---------                  33[32;1m 1.  创建讲师                  2.  ...                  3.  返回                  33[0m              """)              option = input("请选择：").strip()              if int(option) == 1:                  Admin.create_teacher(self)              elif int(option) == 2:                  print("扩展中")              else:                  exit_flag = True        def student_manager(self):          exit_flag = False          while not exit_flag:              print("""                  ------- 欢迎进入学员管理 ---------                  33[32;1m 1.  创建学员                  2.  ...                  3.  返回                  33[0m              """)              option = input("请选择：").strip()              if int(option) == 1:                  Admin.create_student(self)              elif int(option) == 2:                  print("扩展中")              else:                  exit_flag = True      def course_manager(self):          exit_flag = False          while not exit_flag:              print("""                  ------- 欢迎进入课程管理 ---------                  33[32;1m 1.  创建课程                  2.  ...                  3.  返回                  33[0m              """)              option = input("请选择：").strip()              if int(option) == 1:                  Admin.create_course(self)              elif int(option) == 2:                  print("扩展中")              else:                  exit_flag = True    #讲师视图类，继承Teacher类  class Teacher_view(Teacher,):      def __init__(self,teacher_name,teacher_salary,teacher_school):          Teacher.__init__(self,teacher_name,teacher_salary,teacher_school)      def login(self):          menu = u'''          ------- 欢迎进入讲师视图 ---------              33[32;1m  1.  创建上课记录              2.  创建学员成绩              3.  查看学员上课记录              4.  查看学员成绩              5.  返回              33[0m'''          menu_dic = {              '1': Teacher.create_class_record,              '2': Teacher.create_class_grade,              '3': Teacher.tacher_view_record,              '4': Teacher.teacher_view_grade,              '5': "logout",          }          if True:              exit_flag = False              while not exit_flag:                  print(menu)                  option = input("请选择：").strip()                  if option in menu_dic:                      if int(option) == 5:                          exit_flag = True                      else:                          print(menu_dic[option])                          menu_dic[option](self)                  else:                      print("33[31;1m输入错误，重新输入33[0m")    #学员视图类，继承Student类  class Student_view(Student):      def __init__(self,student_name,student_sex,student_school,student_classes):          Student.__init__(self,student_name,student_sex,student_school,student_classes)        def login(self):          menu = u'''          ------- 欢迎进入学生管理视图 ---------          33[32;1m 1.  注册          2.  交学费          3.  查看上课记录          4.  查看作业成绩          5.  返回          33[0m'''          menu_dic = {              '1': Student.student_registered,              '2': Student.student_pay_fees,              '3': Student.student_view_record,              '4': Student.student_view_grade,              '5': "logout",          }          if True:              exit_flag = False              while not exit_flag:                  print(menu)                  option = input("请选择：").strip()                  if option in menu_dic:                      if int(option) == 5:                          exit_flag = True                      else:                          menu_dic[option](self)                  else:                      print("33[31;1m输入错误，重新输入33[0m")    #程序交互类  class Run(object):      def __init__(self):          pass      def interactive(self):          menu = u'''          ------- 欢迎进入选课系统 ---------          33[32;1m 1.  学生视图          2.  讲师视图          3.  管理视图          4.  退出          33[0m'''          menu_dic = {              '1': Student_view,              '2': Teacher_view,              '3': Admin_view,              # '4': logout,          }          exit_flag = False          while not exit_flag:              print(menu)              option_view = input("请选择视图：").strip()              if option_view in menu_dic:                  if int(option_view) == 4:                      exit_flag = True                  else:                      menu_dic[option_view].login(self)              else:                  print("33[31;1m输入错误，重新输入33[0m")