hyzp_ybqx-Commit092：已初步实现显示保存的用户列表，选择列表项目后能够成功登录

lib/components/commonFun.dart

@@ -3,6 +3,7 @@ import 'dart:developer' as developer;
 import 'dart:io';
 import 'dart:math';
 
+import 'package:ai_save_account/ai_save_account.dart';
 import 'package:camera/camera.dart';
 import 'package:convert/convert.dart';
 import 'package:crypto/crypto.dart' as crypto;
@@ -221,6 +222,7 @@ int faceLogin = -1; //1 成功，0 失败，-1 处理中
 int faceRegUserID = -1; //人脸注册时所需用户ID，-1 非法
 
 List<CameraDescription> cameras;
+List<UserAccount> g_users = new List(); //历史账号
 UserInfo g_userInfo = UserInfo(mapUserInfoRet: {
   "ret": 200,
   "data": {