dedecms织梦模板分页列表添加省略号的方法

  if ($totalpage > $total_list) { 
           $half = floor(($total_list - 4) / 2); 
           $half_start = $this->PageNo - $half + 1; 
           if ($total_list % 2 !== 0) --$half_start; 
           $half_end = $this->PageNo + $half; 
       } 
       if (($totalpage - $this->PageNo) < ($total_list - 3)) { 
           $half_start = $totalpage - $total_list + 3; 
           unset($half_end);
       } 
       if ($this->PageNo <= ($total_list - 3)) { 
           $half_end = $total_list - 2; 
           unset($half_start); 
       }

   if (isset($half_start) && $j < $half_start && $j > 1) {
 
               if ($j == 2) $listdd .= "<li style='border:0;'><a href='javascript:void(0)'>...</a></li>";
               continue;
           }
           if (isset($half_end) && $j > $half_end && $j < $totalpage) { 
               if ($j == ($half_end + 1)) $listdd .= "<li style='border:0;'><a href='javascript:void(0)'>...</a></li>";
               continue; 
           }