/**
  * AJAX返回数据标准
  *
  * @param int $status
  * @param string $msg
  * @param mixed $data
  * @param string $dialog
  */
 protected function ajaxReturn($status = 1, $msg = '', $data = '', $dialog = '')
 {
     if (is_array($status)) {
         parent::ajaxReturn($status);
         return;
     }
     parent::ajaxReturn(array('status' => $status, 'info' => $msg, 'data' => $data, 'dialog' => $dialog));
 }
 function fetch($templateFile = '', $content = '', $prefix = '')
 {
     return parent::fetch($this->parseTemplate($templateFile), $content, $prefix);
 }