dedecms织梦点赞功能怎么做

ALTER TABLE dede_archives ADD zan int(11) NOT NULL DEFAULT '0' AFTER weight;

CREATE TABLE IF NOT EXISTS `dede_zan` (   `id` int(11) NOT NULL AUTO_INCREMENT,   `aid` int(11) NOT NULL,   `ip` varchar(40) NOT NULL,   PRIMARY KEY (`id`) ) ENGINE=MyISAM  DEFAULT CHARSET=utf8

function zan($aid){    global $dsql;    $row = $dsql->GetOne("Select id,zan From dede_archives where id='".$aid."'");    return $row['zan'];    }

.zan p{background:#000; opacity:.8;filter:alpha(opacity=80);} .zan p a{padding-left:30px; height:24px; background:url(/images/heart.png) no-repeat  4px -1px;color:#fff; font-weight:bold; font-size:14px} .zan p a:hover{background-position:4px -25px;text-decoration:none}

<script type="text/javascript" src="/jquery.js"></script>  $(function(){     $("p a").click(function(){         var zan = $(this);         var id = zan.attr("rel"); //对应id         zan.fadeOut(300); //渐隐效果         $.ajax({             type:"POST",             url:"/zan.php",             data:"id="+id,             cache:false, //不缓存此页面             success:function(data){                 zan.html(data);                 zan.fadeIn(300); //渐显效果             }         });         return false;     }); });

<div class="zan"><p><a href="#"  title="赞一个 "class="img_on" rel="{dede:field.id/}">{dede:field.id function="zan(@me)"/}</a></p></div>

<?phprequire_once (dirname(__FILE__) . "/include/common.inc.php");$ip =getip(); //获取用户IP $id = $_POST['id']; if(!isset($id) || empty($id)) exit; //查询已赞过的IP$dsql->SetQuery("SELECT ip FROM dede_zan  WHERE aid='".$id."' and ip='$ip'");$dsql->Execute();$count = $dsql->GetTotalRow();if($count==0){ //如果没有记录     $dsql->ExecuteNoneQuery("update dede_archives set zan=zan+1 where id='$id'; ");//写入赞数         $dsql->ExecuteNoneQuery("insert into dede_zan (aid,ip) values ('$id','$ip'); ");//写入IP,及被赞的AID     $rows = $dsql->GetOne("Select zan  from dede_archives where id='".$id."'");//获取被赞的数量    $zan = $rows['zan']; //获取赞数值     echo $zan; }else{     echo "赞过了.."; }