# !/usr/bin/env python # -*- coding:utf8 -*- import hashlib def login(username, pwd): with open("user.db", 'r', encoding='utf-8') as f: while True: line = f.readline() if line: user, password = line.strip().split("|") if user == username and md5(pwd) == password: return True else: break return False def checkusername(username): with open('user.db', 'r') as f: while True: content = f.readline() if content: user = content.strip().split('|')[0] if user == username: return True else: break return False # with open('user.db', 'r') as f: # lines = f.readlines() # # for line in lines: # print(line.strip()) # user = line.strip().split("|")[0] # if user == username: # return True # else: # return False # with open('user.db', 'r', encoding='utf-8') as f: # for line in f: # user = line.strip().split("|")[0] # if user == username: # return True # else: # return False def register(username, pwd): with open('user.db', 'a+', encoding='utf-8') as f: temp = " " + username + "|" + md5(pwd) f.write(temp) def md5(pwd): hash = hashlib.md5(bytes('888888', encoding='utf-8')) hash.update(bytes(pwd, encoding='utf-8')) return hash.hexdigest() print("PLS select the function, 1: 登录; 2:注册") sel = input("Your Choose: ") username = input("Username: ") pwd = input("Password: ") if sel == "1": log_ret = login(username, pwd) if log_ret: print("登录成功") else: print("登录失败") elif sel == "2": # ret = False ret = checkusername(username) if ret: print("Username 已经存在,不予注册。") else: register(username, pwd)