public function actionUpdateuserpassword()
 {
     $id = \Yii::$app->user->identity->XH_ID;
     $password = $_POST['password'];
     $usertb = new UserTb();
     $result = $usertb->updatePassword($id, $password);
     if ($result) {
         echo '{"success": true}';
     } else {
         echo '{"success": false}';
     }
 }