织梦DEDECMS怎么DoNews右侧最新评论

{dede:sql sql="SELECT aid,username,urlindex,arctitle,url,msg FROM `dede_feedback` where ischeck=1 ORDER BY `dtime` DESC  LIMIT 0 , 30"}
[field:username runphp='yes']if(@me=='guest')@me=游客[/field:username]对<a href="[field:url/]">[field:arctitle function='cn_substr(@me,20)'/]</a>的评论<br/>
<a href="/plus/feedback.php?arcID=[field:aid/]&urlindex=[field:urlindex/]">[field:msg/]</a><br/>
{/dede:sql}