public function delete($id = 0)
 {
     if (is_array(Input::get('ids'))) {
         $id = Input::get('ids');
     }
     $ok = Comment::destroy($id);
     if ($ok) {
         $ok_extend = Extend::destroy($id);
         if ($ok_extend) {
             return Redirect::to('msg')->withInput()->with('jump_sec', 3)->with('message', "删除成功!");
         } else {
             return Redirect::to('msg')->withInput()->with('jump_sec', 120)->with('message', "扩展数据 删除失败! 请手工修复数据");
         }
     } else {
         return Redirect::to('msg')->withInput()->with('jump_sec', 3)->with('message', "删除失败!");
     }
 }