/**
  * 问题类型
  * @param $gameId 游戏ID 
  * $gameId=0即查询所有问题分类
  */
 private function getQuestionTypes($gameId)
 {
     $dao = new QuestionTypesModel();
     return $dao->getQuestionTypes($gameId);
 }
 /**
  * 问题类型
  */
 public function question_types()
 {
     if ($this->gmae_id) {
         $dao = new QuestionTypesModel();
         $list = $dao->getQuestionTypes($this->gmae_id);
         $this->ajaxReturn($list);
     } else {
         $this->ajaxReturn(NULL, "NO_FIND", 0);
     }
 }