/**
 *  获取图集图片数量
 *
 * @access    public
 * @param     string  $aid  	文章id
 * @return    string
 */
function GetImgCount($aid)     
{
    global $dsql;
    $imgurls = '';
    $row =$dsql->getone( "Select imgurls From `dede_addonimages` where aid='$aid' ");
    $imgurls= $row['imgurls'];
    preg_match_all("/{dede:img (.*){\/dede:img/isU",$imgurls,$wordcount);
    $count=count($wordcount[1]);
    return $count;
}

首页\列表页

[field:id function=GetImgCount(@me)/]

{dede:field.id function=GetImgCount(@me)/}