织梦列表页如何调用dede:img

function GetOneImgUrl($img,$ftype=1){   
    if($img <> &#39;&#39;){   
        $dtp = new DedeTagParse();   
        $dtp->LoadSource($img);   
        if(is_array($dtp->CTags)){   
            foreach($dtp->CTags as $ctag){   
                if($ctag->GetName()==&#39;img&#39;){   
                    $width = $ctag->GetAtt(&#39;width&#39;);   
                    $height = $ctag->GetAtt(&#39;height&#39;);   
                    $imgurl = trim($ctag->GetInnerText());   
                    $img = &#39;&#39;;   
                    if($imgurl != &#39;&#39;){   
                        if($ftype==1){   
                            $img .= $imgurl;   
                        }   
                        else{   
                            $img .= &#39;<img  src="&#39;.$imgurl.&#39;"    style="max-width:90%" height="&#39;.$height.&#39;" / alt="织梦列表页如何调用dede:img" >&#39;;   
                        }   
                    }   
                               
                }   
            }   
        }   
        $dtp->Clear();   
        return $img;       
    }   
}