1.修改template/default/forum/discuz.htm文件找到以下代码：
<a href="forum.php?mod=redirect&tid=$forum[lastpost][tid]&goto=lastpost#lastpost" class="xi2"><!--{echo cutstr($forum[lastpost][subject], 30)}--></a><cite>$forum[lastpost][dateline]<!--{if $forum['lastpost']['author']}-->$forum['lastpost']['author']<!--{else}-->$_G[setting][anonymoustext]<!--{/if}--></cite><a href="forum.php?mod=redirect&tid=$forum[lastpost][tid]&goto=lastpost#lastpost">{lang forum_lastpost}:$forum[lastpost][dateline]</a> {lang never}2.替换为：
$forum[description]