https://www.cnblogs.com/Eva-J/articles/9235899.html
Low Ver.
#!/usr/bin/env python
# encoding: utf-8
# Author: MeiMeiLong <[email protected]>
# Create Date: 2019-03-29 15:47:08
# Last Modified: 2019-03-31 11:41:25
# Description:
import os
import json
import pickle
import hashlib
class Account(object):
def __init__(self,username,password,userfile = 'userinfo.json',courcefile = 'courceinfo.pickle'):
self.username = username
self.__password = password
self.userfile = userfile
self.courcefile = courcefile
def __GetJson(self):
with open(self.userfile,mode='r',encoding='utf-8') as jsonfile:
return json.load(jsonfile)
def __PutJson(self,user_dic):
with open(self.userfile,mode='w',encoding='utf-8') as jsonfile:
json.dump(user_dic,jsonfile,sort_keys=True,indent=2,separators=(',',':'),ensure_ascii=False)
return True
def __md5encry(self,passwd):
md5 = hashlib.md5()
md5.update(passwd.encode('utf-8'))
return md5.hexdigest()
def __CheckAccount(self):
if os.path.exists(self.userfile):
if self.__GetJson() == '':
self.__PutJson({'Student':dict(),'Administrator':dict()})
return '账户初始化完成'
else:
self.__PutJson({'Student':dict(),'Administrator':dict()})
return '账户初始化完成'
def login(self):
self.__CheckAccount()
UserInfo = self.__GetJson()
for character in UserInfo:
if UserInfo[character].get(self.username):
if UserInfo[character][self.username] == self.__md5encry(self.__password):
return character
else:
print('用户名或密码错误')
return False,False
else:
print(f'用户:{self.username}不存在')
return False
def register(self,character='Student'):
self.__CheckAccount()
UserInfo = self.__GetJson()
if UserInfo[character].get(self.username):
print(f'用户:{self.username}已存在')
return False
else:
UserInfo[character][self.username] = self.__md5encry(self.__password)
if self.__PutJson(UserInfo):
return character
class Cources(object):
"""
课程并没有什么动作，所以我们只设计属性不设计方法。
"""
def __init__(self,name,price,cycle,teacher):
self.name = name
self.price = price
self.cycle = cycle
self.teacher = teacher
#Student
#{{{
class Student(Account,Cources):
"""
方法：查看可选课程、选择课程、查看所选课程、退出程序
"""
def __init__(self,username,password,userfile = 'userinfo.json',courcefile = 'courceinfo.pickle',cources=None):
super().__init__(username,password,userfile = 'userinfo.json',courcefile = 'courceinfo.pickle')
self.cources = cources
def __GetCource(self,f=None):
if f is None:
try:
with open(self.courcefile,mode='rb') as pickfile:
return pickle.load(pickfile)
except EOFError:
return []
else:
try:
with open(self.courcefile,mode='rb') as pickfile:
return pickle.load(pickfile)
except EOFError:
return []
def __PutCource(self,cource_lst,f=None):
if f is None:
with open(self.courcefile,mode='wb') as pickfile:
pickle.dump(cource_lst,pickfile)
return True
else:
with open(f,mode='wb') as pickfile:
pickle.dump(cource_lst,pickfile)
return True
def ViewCources(self,cources_lst=list()):
#return self.__GetCource(__userfile)
for cource in self.__GetCource():
dic = dict()
dic['name'] = cource.name
dic['price'] = cource.price
dic['cycle'] = cource.cycle
dic['teacher'] = cource.teacher
cources_lst.append(dic)
return cources_lst
def ChoiceCource(self,choice_lst=list()):
for dic in self.__GetCource():
print(f"名称:{dic.name},价格:{dic.price},周期:{dic.cycle},老师:{dic.teacher}")
select = input('是否选择此科目(Y/N):').strip()
if select.upper() == 'Y':
choice_lst.append(dic)
else:
self.cources = choice_lst
cachefile = self.username.username + '.pickle'
self.__PutCource(self.cources,cachefile)
return self.cources
def SelectedCourse(self):
cachefile = self.username.username + '.pickle'
cource_lst = self.__GetCource(cachefile)
for lesson in cource_lst:
print(f'选择了{lesson.name}科目')
#}}}
#Administrator
###{{{
class Administrator(Account,Cources):
"""
方法：创建课程、创建学生学生账号、查看所有课程、查看所有学生、查看所有学生的选课情况、退出程序
"""
def __init__(self,username,password,userfile = 'userinfo.json',courcefile = 'courceinfo.pickle'):
super().__init__(username,password,userfile = 'userinfo.json',courcefile = 'courceinfo.pickle')
def __GetCource(self,f=None):
if f is None:
try:
with open(self.courcefile,mode='rb') as pickfile:
return pickle.load(pickfile)
except EOFError:
return []
else:
try:
with open(self.courcefile,mode='rb') as pickfile:
return pickle.load(pickfile)
except EOFError:
return []
def __PutCource(self,cource_lst):
with open(self.courcefile,mode='wb') as pickfile:
pickle.dump(cource_lst,pickfile)
return True
def CreateCource(self,cource_name_lst=list()):
Cource_lst = self.__GetCource()
name = input('课程名称:').strip()
price = input('课程价格:').strip()
cycle = input('课程周期:').strip()
teacher = input('教课老师:').strip()
name = Cources(name,price,cycle,teacher)
for cource in Cource_lst:
cource_name_lst.append(cource.name)
if name.name not in cource_name_lst:
Cource_lst.append(name)
else:
print('课程已存在')
return False
ret = self.__PutCource(Cource_lst)
if ret:
print('课程添加成功')
return True
def CreateAccount(self):
return Register()
def ViewCources(self,cources_lst=list()):
#return self.__GetCource(__userfile)
for cource in self.__GetCource():
dic = dict()
dic['name'] = cource.name
dic['price'] = cource.price
dic['cycle'] = cource.cycle
dic['teacher'] = cource.teacher
cources_lst.append(dic)
return cources_lst
def __GetJson(self):
with open(self.userfile,mode='r',encoding='utf-8') as jsonfile:
return json.load(jsonfile)
def ViewStudents(self):
return [ student for student in self.__GetJson()['Student'] ]
def ViewStudent_Cources(self):
Student = self.ViewStudents()
for stu in Student:
if os.path.exists(stu + '.pickle'):
stu_cource = self.__GetCource(stu +'.pickle')
lesson = [ i.name for i in stu_cource]
print(f'学生{stu}选择了{",".join(lesson)}.')
else:
print(f'学生{stu}没有选择课程.')
#}}}
def Register():
user = input('输入你的用户名:'.strip())
passwd = input('输入你的密码:'.strip())
character = input('输入用户的角色(Administrator/Student):'.strip())
character = 'Student' if character is '' or character == 'Student' else 'Administrator'
user = Account(user,passwd)
chara = user.register(character)
if chara:
print(f'用户:{user.username}以{chara}身份注册成功')
return chara,True
def Login():
user = input('输入你的用户名:'.strip())
passwd = input('输入你的密码:'.strip())
user = Account(user,passwd)
chara = user.login()
if chara:
print(f'用户:{user.username}以{chara}身份登陆成功')
User = globals()[chara](user,passwd)
return chara,User
def Logout():
print('登出!')
return False
def Menu(character='Nobody'):
menu_title = {
'Nobody': ['登陆','注册','退出'],
'Student': ['查看所有课程','选择课程','查看所选课程','账号登出'],
'Administrator': ['创建课程','创建学生账号','查看所有课程','查看所有学生','查看所有学生的选课情况','账号登出'],
}
menu_action = {
'Nobody':{'1':Login,'2':Register,'3':Logout},
'Student':{'1':'ViewCources','2':'ChoiceCource','3':'SelectedCourse','4':Logout},
'Administrator':{'1':'CreateCource','2':'CreateAccount','3':'ViewCources','4':'ViewStudents','5':'ViewStudent_Cources','6':Logout},
}
print('学生选课系统'.center(40,'='))
print(f'所属用户:{character}'.rjust(42,' '))
for num,title in enumerate(menu_title[character]):
print(f'\033[32;1m{str(num+1)}、{title}\033[0m')
select = input('>>>').strip()
if select.isdigit():
if int(select) not in range(1,len(menu_action[character])+1):
print('请输入正确的数字')
return None
else:
print('请输入正确的数字')
return None
if callable(menu_action[character][select]):
return menu_action[character][select]()
else:
return menu_action[character][select]
if __name__ == "__main__" :
exit_flagI = True
while exit_flagI:
User = Menu()
if User is False or User is None:
exit_flagI = False
continue
elif User[1] == True:
exit_flagI = False
continue
if User:
exit_flagII = True
while exit_flagII:
character,class_user = User
Act = Menu(character)
if Act is False:
exit_flagII = False
continue
elif Act is None:
continue
if hasattr(class_user,Act):
if Act == 'ViewCources':
ret = getattr(class_user,Act)
print('所有课程'.center(40,'='))
for dic in ret():
print(f"名称:{dic['name']},价格:{dic['price']},周期:{dic['cycle']},老师:{dic['teacher']}")
elif Act == 'ViewStudents':
ret = getattr(class_user,Act)()
print('有学生:')
for student in ret:
print(f'{student}',end=' ')
else:
print('\n')
else:
ret = getattr(class_user,Act)()