public function dealPicture($param)
 {
     $config = $this->getConfig();
     if ($config['switch']) {
         if ($config['water']) {
             $water = $config['water'];
         } else {
             $water = './Addons/Water/water.png';
         }
         $water_open = file_exists($water);
         require_once './Addons/Water/WaterMark.class.php';
         if ($water_open) {
             $watermark = new \WaterMark($param, $config['position']);
             $watermark->setWaterImage($water);
             $watermark->imageWaterMark();
         }
     }
     return $param;
 }