dedecms 图片页面分离简单方法

{dede:field.body runphp='yes'} 
$str = @me; 
$str3 = preg_replace("/src=\"\http://www.dedecode.com/uploads/","src=\"http://img.dedecode.comhttp://www.dedecode.com/uploads",$str);
@me = $str3; 
{/dede:field.body}