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"); //對應id         zan.fadeOut(300); //漸隱效果         $.ajax({             type:"POST",             url:"/zan.php",             data:"id="+id,             cache:false, //不緩存此頁面             success:function(data){                 zan.html(data);                 zan.fadeIn(300); //漸顯效果             }         });         return false;     }); });

<div class="zan"><p><a href="#"  title="贊一個 "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(); //獲取用戶IP $id = $_POST['id']; if(!isset($id) || empty($id)) exit; //查詢已贊過的IP$dsql->SetQuery("SELECT ip FROM dede_zan  WHERE aid='".$id."' and ip='$ip'");$dsql->Execute();$count = $dsql->GetTotalRow();if($count==0){ //如果沒有記錄     $dsql->ExecuteNoneQuery("update dede_archives set zan=zan+1 where id='$id'; ");//寫入贊數         $dsql->ExecuteNoneQuery("insert into dede_zan (aid,ip) values ('$id','$ip'); ");//寫入IP,及被贊的AID     $rows = $dsql->GetOne("Select zan  from dede_archives where id='".$id."'");//獲取被贊的數量    $zan = $rows['zan']; //獲取贊數值     echo $zan; }else{     echo "贊過了.."; }