找到当前使用的模版
template/xxxxxxx/forum/viewthread_node.htm
找到支持与反对的按钮 添加 红色部分代码
<a id="recommend_add" href="forum.php?mod=misc&action=recommend&do=add&tid=$_G[tid]&hash={FORMHASH}" {if $_G['uid']}οnclick="ajaxmenu(this, 3000, 1, 0, '43', 'recommendupdate({$_G['group']['allowrecommend']})');return false;"{else} οnclick="showWindow('login', this.href)"{/if} οnmοuseοver="this.title = $('recommendv_add').innerHTML + ' {lang activity_member_unit}$_G[setting][recommendthread][addtext]'"><i><img src="{IMGDIR}/rec_add.gif" alt="$_G['setting']['recommendthread'][addtext]" />$_G['setting']['recommendthread'][addtext]<span id="recommendv_add">$_G[forum_thread][recommend_add]</span></i></a>