#!/usr/bin/python3# -*- coding: utf-8 -*-# Author: zhw#读取文件中的内容def open_file(filename ,file_type , *args): #读取文件中的数据 if file_type == 'r': flie_list = [] with open(filename,file_type) as sub_all: for file_line in sub_all: flie_list.append(file_line.strip()) #print(flie_list) return flie_list #读取文件中的用户号 elif file_type == 'ru': flie_list = [] with open(filename,'r') as sub_all: for file_line in sub_all: file_l = file_line.split('|') user_no = file_l[0] flie_list.append(user_no.strip()) #print(flie_list) return flie_list #写入文件 elif file_type == 'a+': data = args[0] with open(filename, file_type) as sub_all: sub_all.write(data +"\n") else: print('您输入的格式没有，请检查')class User(object): def __init__(self, user_no, user_pw): self.user_no = user_no self.user_pw = user_pw self.file = 'login.log' @property #检查账号是否已经存在 def check_user(self): flie_list = open_file(self.file, 'ru') if self.user_no in flie_list: return '1' else: return '0' #注册账号 def regist(self): user_info = '%s|%s' % (self.user_no, self.user_pw) open_file(self.file, 'a+',user_info) #return'注册成功' #账号登录 def login(self): flie_list = open_file(self.file, 'r') user_info = '%s|%s' % (self.user_no, self.user_pw) if user_info in flie_list: return '1' else: return '0'def return_more(args): pass#循环验证登录，循环注册账号while True: print('请选择\n ' '1. 注册\n' '2. 登录\n' '3. 退出') choose = input('请选择').strip() if choose == '1': for i in range(3): user_no = input('请输入注册账号：').strip() user_pw = '' user = User(user_no,user_pw) #检查用户号是否存在 return_more = user.check_user if return_more == '0': user_pw = input('请输入注册密码：').strip() user = User(user_no, user_pw) return_more = user.regist() print(return_more) break else: print('您输入的账号已经存在，请选择其他账号') #print('您输入的错误次数太多，已退出！') elif choose == '2': for i in range(3): user_no = input('请输入登录账号：').strip() user_pw = input('请输入登录密码').strip() user = User(user_no, user_pw) #用户登录 return_mk = user.login() if return_mk =='0': print("登录失败，请重新输入") else: print('登录成功') break elif choose == '3': break else: print('输入序号有无，请重新输入')
来源：https://www.cnblogs.com/hong1227/p/11570564.html