运行程序时总是提示

AttributeError: 'Class' object has no attribute 'class_student'

""" 注：bin目录 判断了系统环境，添加了环境变量，调用了主业务区main.py """ import os import sys import platform

if platform.system() == "Windows": BASE_DIR = "\".join(os.path.abspath(os.path.dirname(file)).split("\")[:-1])

else: BASE_DIR = "/".join(os.path.abspath(os.path.dirname(file)).split("/")[:-1])

sys.path.append(BASE_DIR) #print(sys.path)

from core import main from conf import settings

if name == 'main': obj = main.Manage_center() obj.run() ——————————————————————————————————————

""" 注：conf目录 定义了数据库路径 """ import os import sys import platform

if platform.system() == "Windows": BASE_DIR = "\".join(os.path.abspath(os.path.dirname(file)).split("\")[:-1]) database_path = os.path.join(BASE_DIR,"database")

else: BASE_DIR = "/".join(os.path.abspath(os.path.dirname(file)).split("/")[:-1]) database_path = os.path.join(BASE_DIR, "database")

school_db_file = os.path.join(database_path,"school")

——————————————————————————————————————

""" 注：core目录定义了4个类，管理中心，学员视图，讲师视图，学校视图 """

import os import sys import shelve from modules.school import School from conf import settings

class Manage_center(object): def init(self): pass

def run(self):
    while True:
        print("\n------欢迎进入校园管理页面-------\n"
                      "\t\t1.学校视图\n"
                      "\t\t2.教师视图\n"
                      "\t\t3.学生视图\n"
                      "\t\t4.按q健退出\n" )
        user_choice=input("\033[34;0m请输入您要登录的视图:\033[0m")
        if user_choice == '1':
            Manage_student()
        elif user_choice == '2':
            Manage_teacher()
        elif user_choice == '3':
            Manage_school()
        elif user_choice == 'q':
            print("\033[32;1m你即将退出管理系统，感谢你的使用\033[0m")
            break
        else:
            print("你输入的选择不正确，请重新确认")

class Manage_school(object): <>学校管理视图

def __init__(self):
    if os.path.exists(settings.school_db_file + ".dat"):  # shelve会生成三个文件，其中有.dat结尾
        self.school_db = shelve.open(settings.school_db_file)  # 打开学校数据库文件
        self.run_manger()  # 运行管理视图
        self.school_db.close()  # 关闭数据库文件
    else:
        print("\33[31;1m系统信息：初始化数据库\33[0m")
        self.initialize_school()  # 初始化数据库
        self.run_manger()
        self.school_db.close()

def initialize_school(self):
    '''实例化两个学校北京/上海'''
    self.school_db = shelve.open(settings.school_db_file)
    self.school_db['北京'] = School('北京', '中国.北京')
    self.school_db['上海'] = School('上海', '中国.上海')
def run_manger(self):
    '''运行学校管理视图 '''
    while True:
        for key in self.school_db:
            print("学校名称：", key)
        choice_school = input("\33[34;0m输入选择管理的学校名:\33[0m").strip()
        if choice_school in self.school_db:
            self.choice_school = choice_school
            self.school_obj = self.school_db[choice_school]
            while True:
                print("\n欢迎来到老男孩%s校区\n"
                      "添加课程 add_course\n"
                      "增加班级 add_class\n"
                      "招聘讲师 add_teacher\n"
                      "查看课程 check_course\n"
                      "查看班级 check_class\n"
                      "查看讲师 check_teacher\n"
                      "退出程序 exit" % self.school_obj.school_name)
                user_func = input('''\033[34;0m输入要操作的命令：\033[0m''').strip()
                if hasattr(self, user_func):
                    getattr(self, user_func)()
        else:
            print("\33[31;1m输入错误：请输入正确的学校名\33[0m")
def add_course(self):
    course_name = input('''\033[34;0m输入要添加课程的名称：\033[0m''').strip()
    course_price = input('''\033[34;0m输入要添加课程的价格：\033[0m''').strip()
    course_time = input('''\033[34;0m输入要添加课程的时长：\033[0m''').strip()
    if course_name in self.school_obj.school_course:  # 判断课程是否已经添加过
        print("\33[32;1m课程存在\33[0m")
        self.school_obj.create_course(course_name, course_price, course_time)
        print("\33[32;1m课程更新完成\33[0m")
    else:
        self.school_obj.create_course(course_name, course_price, course_time)
        print("\33[32;1m课程添加成功\33[0m")
    self.school_db.update({self.choice_school: self.school_obj})  # 更新数据库数据

def add_class(self):
    class_name = input('''\033[34;0m输入要添加班级的名称：\033[0m''').strip()
    course_name = input('''\033[34;0m输入要关联的课程：\033[0m''').strip()
    if class_name not in self.school_obj.school_class:
        if course_name in self.school_obj.school_course:
            course_obj = self.school_obj.school_course[course_name]
            self.school_obj.create_class(class_name, course_obj)
            self.school_db.update({self.choice_school: self.school_obj})  # 更新数据库数据
            print("\33[32;1m班级创建成功\33[0m")
        else:
            print("\33[31;1m系统错误：关联的课程不存在\33[0m")
    else:
        print("\33[31;1m系统错误：班级已经存在\33[0m")
def add_teacher(self):
    teacher_name = input('''\033[34;0m输入要招聘教师的名称：\033[0m''').strip()
    teacher_salary = input('''\033[34;0m输入教师的薪资：\033[0m''').strip()
    teacher_class = input('''\033[34;0m输入要关联的班级：\033[0m''').strip()
    if teacher_class in self.school_obj.school_class:  # 判断班级是否存在
        class_obj = self.school_obj.school_class[teacher_class]  # 获取班级名对应的实例
        if teacher_name not in self.school_obj.school_teacher:  # 判断招聘教师是否存在，不存在创建，存在更新
            self.school_obj.create_teacher(teacher_name, teacher_salary, teacher_class, class_obj)
            print("\33[32;1m新讲师招聘成功\33[0m")
        else:
            self.school_obj.update_teacher(teacher_name, teacher_class, class_obj)
            print("\33[32;1m讲师已经存在，信息更新完成\33[0m")

        self.school_db.update({self.choice_school: self.school_obj})  # 更新数据库数据
    else:
        print("\33[31;1m系统错误：关联的班级不存在\33[0m")

def check_course(self):
    self.school_obj.show_course()

def check_class(self):
    self.school_obj.show_class()

def check_teacher(self):
    self.school_obj.show_teacher()

def exit(self):
    self.school_db.close()
    sys.exit("\033[32;1m欢迎下次使用学员管理系统\033[0m")

class Manage_student(object): '''学生视图''' def init(self): if os.path.exists(settings.school_db_file+'.dat'): self.school_db=shelve.open(settings.school_db_file) self.run_manger() self.school_db.close() else: print("\033[31;1m数据库文件不存在，请先创建学校\033[0m") exit() def run_manger(self): print("\033[31;1m欢迎进入学生管理视图\033[0m") for key in self.school_db: print("学校名称：", key) chonse_school = input("\33[34;0m输入选择注册的学校名:\33[0m").strip() if chonse_school in self.school_db: self.chonse_school = chonse_school self.school_obj = self.school_db[chonse_school] student_name = input('''\033[34;1m输入学生的姓名：\033[0m''') student_age = input('''\033[34;1m输入学生的年龄：\033[0m''') self.school_obj.show_class_course() class_choice = input('''\033[34;0m输入上课的班级：\033[0m''') if class_choice in self.school_obj.school_class: self.school_obj.create_student[student_name, student_age, class_choice] self.school_db.update() print("\33[32;1m学生注册成功\33[0m") else: print("\33[31;1m系统错误：输入的班级不存在\33[0m") else: print("\33[31;1m系统错误：输入的学校不存在\33[0m")

class Manage_teacher(object): '''教师视图''' def init(self): if os.path.exists(settings.school_db_file+".dat"): self.school_db=shelve.open(settings.school_db_file) self.run_manger() self.school_db.close() else: print("\033[31;1m数据库文件不存在，请先创建学校\033[0m") exit() def run_manger(self): print("\033[31;1m欢迎进入讲师管理视图\033[0m") for key in self.school_db: print("学校名称",key) chonse_school = input("\33[34;0m输入选择学校名:\33[0m").strip() if chonse_school in self.school_db: self.chonse_school=chonse_school self.school_obj=self.school_db[chonse_school] teacher_name= input('''\033[34;0m输入登录讲师的姓名：\033[0m''').strip() while True: if teacher_name in self.school_obj.school_teacher: print("\n欢迎来到教师中心\n" "查看班级 check_class\n" "退出程序 exit" ) user_funk=input('''\033[34;0m输入要操作的命令：\033[0m''').strip() if hasattr(self,user_funk): getattr(self,user_funk)(teacher_name) else: print("\033[31;1m讲师不存在\033[0m") break def check_class(self,teacher_name): self.school_obj.show_teacher_classinfo(teacher_name)

def exit(self):
    self.school_db.close()
    sys.exit("\033[32;1m欢迎下次使用学员管理系统\033[0m")

'''注：modules目录 定义类属性'''

class Class(object): '''班级类，包含名称，课程，学生''' def init(self,class_name,course_obj): self.class_name = class_name self.class_courese = course_obj self.class_student = #学生字典

class Course(): '''定义课程类，包含名称，价格，周期''' def init(self,course_name,course_price,course_time): self.course_name = course_name self.course_price = course_price self.course_time = course_time

from modules.course import Course from modules.classs import Class from modules.teacher import Teacher from modules.student import Student

class School(object):

'''学校类，包含名称，地址，课程，班级，教师'''

def init(self,school_name,school_addr):

self.school_name = school_name

self.school_addr = school_addr

self.school_course=

self.school_class=

self.school_teacher=

def create_course(self,course_name,course_price,course_time):

<>添加课程

course_obj=Course(course_name,course_price,course_time)

self.school_course[course_name]=course_obj

def show_course(self):

<>查看课程信息

for key in self.school_course:

course_obj=self.school_course[key]

print("\033[32;1m 课程：%s\t 价格：%s\t 周期：%s周"%(course_obj.course_name,course_obj.course_price,course_obj.course_time))

def create_class(self,class_name,courese_obj):

<>创建班级

class_obj=Class(class_name,courese_obj)

self.school_class[class_name]=class_obj

def show_class(self):

<>查看班级信息

for key in self.school_class:

class_obj=self.school_class[key]

print("\33[32;1m班级：%s\t关联课程：%s,\33[0m" % (class_obj.class_name, class_obj.class_course.course_name))

def create_teacher(self, teacher_name,teacher_salary,class_name ,class_obj):

<>创建讲师

teacher_obj = Teacher(teacher_name, teacher_salary)

teacher_obj.teacher_add_class(class_name, class_obj)

self.school_teacher[teacher_name] = teacher_obj

def update_teacher(self, teacher_name, class_name, class_obj):

'''更新教师信息'''

teacher_obj = self.school_teacher[teacher_name]

teacher_obj.teacher_add_class(class_name, class_obj)

def show_teacher(self):

'''查看讲师信息'''

for key in self.school_teacher:

teacher_obj = self.school_teacher[key]

class_list = []

for i in teacher_obj.teacher_class:

class_list.append(i)

print("\33[32;1m讲师：%s\t薪资：%s\t关联班级：%s\33[0m" % (key,teacher_obj.teacher_salary,

class_list ))

def create_student(self,student_name,student_age,class_chonse):

'''注册学生'''

student_obj = Student(student_name,student_age) #生成学生实例

class_obj = self.school_class[class_chonse] #获取学生所注册班级的实例对象

class_obj.class_student[student_name]=class_student #班级实例里添加学生信息

self.school_class[class_chonse] = class_obj #学校班级字典更新

def show_teacher_classinfo(self,teacher_name):

teacher_obj = self.school_teacher[teacher_name]

for i in teacher_obj.teacher_class:

class_obj = self.school_class[i]

student_list = []

for k in class_obj.class_student:

student_list.append(k)

print("\33[32;1m班级：%s\t关联课程：%s\t学员:%s\33[0m" % (class_obj.class_name, class_obj.class_course.course_name,

student_list))

from modules.course import Course from modules.classs import Class from modules.teacher import Teacher from modules.student import Student

class School(object): '''学校类，包含名称，地址，课程，班级，教师''' def init(self,school_name,school_addr): self.school_name = school_name self.school_addr = school_addr self.school_course = #学校所有的课程实例 self.school_class = self.school_teacher = #self.school_student =

def create_course(self,course_name,course_price,course_time):
    '''创建课程'''
    course_obj = Course(course_name,course_price,course_time)
    self.school_course[course_name] = course_obj

def show_course(self):
    '''查看课程信息'''
    for key in self.school_course:
        course_obj = self.school_course[key]
        print("\33[32;1m课程：%s\t价格：%s\t周期：%s月\33[0m"%(course_obj.course_name,course_obj.course_price,
                                     course_obj.course_time,))

def create_class(self,class_name,courese_obj):
    '''创建班级'''
    class_obj = Class(class_name,courese_obj)
    self.school_class[class_name] = class_obj

def show_class(self):
    for key in self.school_class:
        class_obj = self.school_class[key]
        print("\33[32;1m班级：%s\t关联课程：%s\33[0m" % (class_obj.class_name, class_obj.class_courese.course_name))

def show_class_course(self):
    for key in self.school_class:
        class_obj = self.school_class[key]
        course_obj = class_obj.class_courese
        print("\33[32;1m班级：%s\t关联课程：%s\t价格：%s\t周期：%s月\33[0m" % (class_obj.class_name, course_obj.course_name,
                                                                course_obj.course_price,course_obj.course_time))

def create_teacher(self,teacher_name, teacher_salary,class_name,class_obj):
    '''创建讲师'''
    teacher_obj = Teacher(teacher_name, teacher_salary)
    teacher_obj.teacher_add_class(class_name,class_obj)
    self.school_teacher[teacher_name] = teacher_obj

def update_teacher(self,teacher_name,class_name,class_obj):
    '''更新教师信息'''
    teacher_obj = self.school_teacher[teacher_name]
    teacher_obj.teacher_add_class(class_name,class_obj)

def show_teacher(self):
    '''查看讲师信息'''
    for key in self.school_teacher:
        teacher_obj = self.school_teacher[key]
        class_list = []
        for i in teacher_obj.teacher_calss:
            class_list.append(i)
        print("\33[32;1m讲师：%s\t薪资：%s\t关联班级：%s\33[0m" % (teacher_obj.teacher_name, teacher_obj.teacher_salary,
                                                      class_list ))
def create_student(self,student_name,student_age,class_choice):
    '''注册学生'''
    student_obj = Student(student_name,student_age)     #生成学生实例
    class_obj = self.school_class[class_choice]         #获取学生所注册班级的实例对象
    class_obj.class_student[student_name]=student_obj   #班级实例里添加学生信息
    self.school_class[class_choice] = class_obj         #学校班级字典更新

def show_teacher_classinfo(self,teacher_name):
    teacher_obj = self.school_teacher[teacher_name]
    for i in teacher_obj.teacher_class:
        class_obj = self.school_class[i]
        student_list = []
        for k in class_obj.class_student:
            student_list.append(k)
        print("\33[32;1m班级：%s\t关联课程：%s\t学员:%s\33[0m" % (class_obj.class_name, class_obj.class_courese.course_name,
                                                        student_list))

class Student(object): '''学生类，包含姓名，年龄''' def init(self,student_name,student_age): self.student_name = student_name self.student_age = student_age

class Teacher(object): '''讲师类，定义teacher_name，teacher_salary，包含teacher_class''' def init(self, teacher_name, teacher_salary): self.teacher_name = teacher_name self.teacher_salary = teacher_salary self.teacher_class = #班级列表 [s14,15]

def teacher_add_class(self,class_name,class_obj):
    self.teacher_class[class_name] = class_obj