这几天学完面向对象，然后找了一个练习做（题目如下）:因为刚刚接触编程，可能有很多方面考虑得不周到
目录如下：
import os
import sys
BASEDIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(BASEDIR)
from core.admin_view import admin_main
from lib.public_func import instanc
from core.student_view import student_main
from core.teacher_view import teacher_main
def main():
msg = '''
--------------------选课系统---------------------
1 管理员
2 讲师
3 学生
'''
msg_main = {
'1' : admin_main,
'2' : teacher_main,
'3' : student_main
}
instanc(msg,msg_main)
if __name__ == '__main__':
main()
import os BASEDIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) DATABASE_DIR = os.path.join(BASEDIR,'db') ADMIN_DIR = os.path.join(DATABASE_DIR,'admin') COURSE_DIR = os.path.join(DATABASE_DIR,'course') COURSE_TO_TEACHER_DIR = os.path.join(DATABASE_DIR,'course_to_teacher') SCHOOL_DIR = os.path.join(DATABASE_DIR,'school') STUDENT_DIR = os.path.join(DATABASE_DIR,'student') TEACHER_DIR = os.path.join(DATABASE_DIR,'teacher') CLASSES_DIR = os.path.join(DATABASE_DIR,'classes') USER = None
from core.modu import *
from lib.public_func import *
@is_login('admin')
def adm_index():
msg = '''
--------------------------------------------
欢迎来到oldboy选课管理系统
1 创建校区
2 查看学校
3 添加老师
4 查看老师
5 添加班级
6 查看班级
7 添加课程
8 查看课程
'''
main_func = {
'1' : setting.USER.create_school,
'2' : School.get_all,
'3': setting.USER.add_teacher,
'4': Teacher.get_all,
'5': setting.USER.add_classes,
'6': Classes.get_all,
'7': setting.USER.add_course,
'8': Course.get_all
}
instanc(msg,main_func)
def initialization():
user = input('用户名：')
pwd = input('密码：')
admin = Admin(user,pwd)
admin.save()
def admin_view():
msg = """
----------------------------------------
1 初始化
2 登录
----------------------------------------
"""
main_func = {
'1' : initialization,
'2' : Admin.login
}
instanc(msg,main_func)
def admin_main():
adm_index()
if __name__ == '__main__':
adm_index()
from lib.Base import Base,Uid
from conf.setting import *
import pickle
class Admin(Base):
'''
管理员类
主要字段：
path 管理员对象存储地址
user 管理员账号
pwd 管理员密码
login 登录函数
'''
path = ADMIN_DIR
def __init__(self,user,pwd):
super().__init__()
self.user = user
self.pwd = pwd
def create_school(self):
'''
创建学校，并且保存
:return:
'''
sch_name = input('请输入校区地址：')
s1 = School(sch_name)
s1.save()
def add_teacher(self):
'''
创建老师，并且保存
:return:
'''
t_name = input("请输入老师的姓名：")
t_age = input("请输入老师的年龄：")
school_all = School.get_all()
school = input("请输入学校对应的下标,从0开始")
user = input("请输入对应的用户名：")
pwd = input("请输入密码：")
teacher = Teacher(t_name,t_age,user,pwd,Uid(school_all[int(school)].uuid))
teacher.save()
def add_classes(self):
'''
创建班级，并且保存
:return:
'''
name = input('请输入班级名称：')
school_all = School.get_all()
school_id = input("请输入所在校区：（下标从0开始）")
course_all = Course.get_all()
course_id = input("请输入此班级课程：（下标从0开始）")
classes = Classes(name,Uid(school_all[int(school_id)].uuid),Uid(course_all[int(course_id)].uuid))
classes.save()
tea = course_all[int(course_id)].to_teacher
for i in tea:
t = i.get_obj(TEACHER_DIR)
t.add_classes(Uid(classes.uuid))
t.save()
def add_course(self):
'''
添加课程，并且保存，这里的课程和老师是一对多的关系
:return:
'''
c_name = input("请输入课程名：")
c_price = input("请输入课程价格：")
c_period = input("课程周期：")
teacher_all = Teacher.get_all()
x = True;teacher_list = []
while x :
x = input("请选择授课讲师：（下标从0 开始，按b结束）")
if x == 'b':
break
teacher_list.append(teacher_all[int(x)].uuid)
course = Course(c_name,c_price,c_period,teacher_list)
course.save()
coursetoteacher = CourseToTeacher(Uid(course.uuid),Uid(teacher_list))
coursetoteacher.save()
class School(Base):
'''
学校类
'''
path = SCHOOL_DIR
name = 'oldboy'
def __init__(self,addr):
super().__init__()
self.addr = addr
def __repr__(self):
return '学校：%s（%s）' % (self.name,self.addr)
class Course(Base):
path = COURSE_DIR
def __init__(self,name,price,period,to_teacher):
super().__init__()
self.name = name
self.price = price
self.period = period
self.to_teacher = [Uid(i) for i in to_teacher]
def __repr__(self):
return '课程名： %s 授课讲师：%s ' % (self.name,[i.get_obj(TEACHER_DIR) for i in self.to_teacher])
class Teacher(Base):
path = TEACHER_DIR
def __init__(self,name,age,user,pwd,school_uuid):
super().__init__()
self.name = name
self.age = age
self.user = user
self.pwd = pwd
self.classes_uuid = []
self.class_uuid = ''
self.school_uuid = Uid(school_uuid)
def add_classes(self,val):
self.classes_uuid.append(val)
def get_cla_stu(self):
if self.class_uuid == "":
print("请先选择班级!")
return False
print("当前所在班级：%s" % self.class_uuid)
result = []
for i in os.listdir(STUDENT_DIR):
s = pickle.load(open(os.path.join(STUDENT_DIR, i), 'rb'))
if s.classes_id.uuid == self.class_uuid.uuid:
result.append(s)
print("当前班级学员有：(姓名，成绩)\n %s" % [(i.name,i.get_exploit()) for i in result])
return result
def show_class(self):
t_classes = [i.get_obj(CLASSES_DIR) for i in self.classes_uuid]
u_choice = input("请选择要管理的班级 %s(下标从0开始)：" %t_classes)
print("进入班级----> %s" % t_classes[int(u_choice)])
self.class_uuid = t_classes[int(u_choice)]
def set_stu_exploit(self):
if self.class_uuid == "":
print("请先选择班级!")
return False
print("当前所在班级：%s" % self.class_uuid)
stu = self.get_cla_stu()
choice = input("请选择需要修改成绩的学员下标（从0开始）：")
num = input("请输入该学员成绩：")
stu[int(choice)].set_exploit(int(num))
stu[int(choice)].save()
def __repr__(self):
return self.name
class CourseToTeacher(Base):
path = COURSE_TO_TEACHER_DIR
def __init__(self,course_uuid,teacher_uuid):
super().__init__()
self.course_uuid = course_uuid
self.teacher_uuid = teacher_uuid
class Student(Base):
path = STUDENT_DIR
def __init__(self,name,age,sex,user,pwd,classes_id,price=0,exploit=0):
super().__init__()
self.name = name
self.age = age
self.sex = sex
self.user = user
self.pwd = pwd
self.__exploit = exploit
self.price = price
self.classes_id = classes_id
def get_exploit(self):
return self.__exploit
def set_exploit(self,val):
self.__exploit = val
@staticmethod
def regiest():
name = input('请输入姓名：')
age = input("请输入年龄：")
sex = input("请输入性别：")
user= input("用户名：")
pwd = input("密码：")
classes_all = Classes.get_all()
class_id = input("选择班级：（下边从 0 开始）")
stu = Student(name,age,sex,user,pwd,Uid(classes_all[int(class_id)].uuid))
stu.save()
def show_all(self):
msg = '''
姓名：{0} 年龄：{1}
性别：{2} 所在班级：{3}
已交学费：{4}
'''
print(msg.format(self.name,self.age,self.sex,self.classes_id.get_obj(CLASSES_DIR).name,self.price))
def update_cla(self):
cla_all = Classes.get_all()
class_choice = input('请选择班级名称，下标从 0 开始：')
self.classes_id = Uid(cla_all[int(class_choice)].uuid)
self.save()
def get_price(self):
print('已交学费 %s 元' % self.price)
def update_price(self):
price = input("输入需要缴费的金额：")
self.price = price
self.save()
def __repr__(self):
return self.name
class Classes(Base):
path = CLASSES_DIR
def __init__(self,name,school_uuid,course_uuid):
super().__init__()
self.name = name
self.school_uuid = school_uuid
self.course_uuid = course_uuid
def __repr__(self):
return self.name
if __name__ == '__main__':
print(Classes.get_all())
from lib.public_func import *
from core.modu import *
@is_login('student')
def student_index():
msg = '''
--------------------------------------------
欢迎来到oldboy选课管理系统
1 查看资料
2 修改班级
3 查看已交学费
4 交学费
'''
main_func = {
'1' : setting.USER.show_all,
'2' : setting.USER.update_cla,
'3': setting.USER.get_price,
'4': setting.USER.update_price
}
instanc(msg,main_func)
def student_main():
student_index()
from lib.public_func import *
from core.modu import *
@is_login('teacher')
def teacher_index():
msg = '''
--------------------------------------------
欢迎来到oldboy选课管理系统
1 选择班级
2 查看班级学员
3 修改所在班级学员成绩
'''
main_func = {
'1' : setting.USER.show_class,
'2' : setting.USER.get_cla_stu,
'3': setting.USER.set_stu_exploit,
# '4': setting.USER.update_price
}
instanc(msg,main_func)
def teacher_main():
teacher_index()
import pickle
import os
import time
import hashlib
class Base:
'''
所有人类的基类，
拥有属性uuid，
拥有方法：
save 保存到数据库
get_all 获取所有元素
create_uuid 通过时间获取hash值
login 登录
'''
def __init__(self):
self.uuid = self.create_uuid()
def save(self):
pickle.dump(self,open(os.path.join(self.path,self.uuid),'wb'))
@classmethod
def get_all(cls):
result = []
for i in os.listdir(cls.path):
result.append(pickle.load(open(os.path.join(cls.path,i),'rb')))
print(result)
return result
@staticmethod
def create_uuid():
uuid = hashlib.md5(str(time.time()).encode('utf-8'))
return uuid.hexdigest()
@classmethod
def login(cls):
while True:
if cls.__name__ is "Student":
uchoice = input('如需要注册，请输入 c ：')
if uchoice == 'c':
cls.regiest()
print("注册成功")
user = input("用户名：")
pwd = input("密码：")
for i in os.listdir(cls.path):
f = pickle.load(open(os.path.join(cls.path,i),'rb'))
if f.user == user and f.pwd == pwd:
return f
print("账号密码错误!")
class Uid:
'''
关联类，当类与类关联时，如果直接关联对象会出现修改不同步的问题，所以就值关联uuid即可，这里是用一个中间对象来取代uuid字符串
get_obj方法就是用来通过uuid获取相对应的对象
'''
def __init__(self,uuid):
self.uuid = uuid
def get_obj(self,path):
for i in os.listdir(path):
if i == self.uuid:
return pickle.load(open(os.path.join(path,i),'rb'))
return None
from core.modu import *
from conf import setting
'''
把输出消息和功能结合到一起
'''
def instanc(main_msg,main):
u_choice = True
while u_choice:
u_choice = input(main_msg)
if u_choice == 'b':
break
main[u_choice]()
setting.USER = None
'''
判断是否登录的装饰器
'''
def is_login(types):
def warrp(func):
def deco(*args,**kwargs):
if setting.USER:
return func(*args,**kwargs)
else:
if types == 'admin':
setting.USER = Admin.login()
return func(*args,**kwargs)
elif types == 'teacher':
setting.USER = Teacher.login()
return func(*args, **kwargs)
elif types == 'student':
setting.USER = Student.login()
return func(*args,**kwargs)
return deco
return warrp