首先打开 include/model/comment_model.php文件

找到 while ($row = $this->db->fetch_array($ret)) {（即第45行）在这里增加一个获取useragent的信息，代码：

$row['useragent'] = htmlspecialchars($row['useragent']);

如图：

其次在249行的评论提交中增加一个useragent的信息到数据库里，修改代码如下：

function addComment($name, $content, $mail, $url, $imgcode, $blogId, $pid)
 { 
$ipaddr = getIp(); 
$useragent = $_SERVER['HTTP_USER_AGENT']; 
$utctimestamp = time(); 
if($pid != 0) 
{ $comment = $this->getOneComment($pid); 
$content = '@' . addslashes($comment['poster']) . '：' . $content; 
} 
$ischkcomment = Option::get('ischkcomment'); 
$hide = ROLE == ROLE_VISITOR ? $ischkcomment : 'n'; 
$sql = 'INSERT INTO '.DB_PREFIX."comment (date,poster,gid,comment,mail,url,hide,ip,pid,useragent) VALUES ('$utctimestamp','$name','$blogId','$content','$mail','$url','$hide','$ipaddr','$pid','$useragent')"; 
$ret = $this->db->query($sql); 
$cid = $this->db->insert_id();
$CACHE = Cache::getInstance(); 
if ($hide == 'n') { $this->db->query('UPDATE '.DB_PREFIX."blog SET comnum = comnum + 1 WHERE gid='$blogId'"); 
$CACHE->updateCache(array('sta', 'comment')); doAction('comment_saved', $cid); emDirect(Url::log($blogId).'#'.$cid);
} else { 
$CACHE->updateCache('sta'); doAction('comment_saved', $cid); emMsg('评论发表成功，请等待管理员审核', Url::log($blogId)); 
} 
}

然后打开博客模板目录，找到 module.php文件，添加代码：

<?php 
//获取评论用户操作系统、浏览器等信息 
function useragent($info){ 
 require_once 'useragent.class.php'; 
 $useragent = UserAgentFactory::analyze($info); 
?> 
<img src="<?php echo TEMPLATE_URL.$useragent->platform['image']?>">&nbsp;<?php echo $useragent->platform['title']; ?>&nbsp; 
<img src="<?php echo TEMPLATE_URL.$useragent->browser['image']?>">&nbsp;<?php echo $useragent->browser['title']; ?> 
<?php 
} 
?>

如图：

调用格式： <?php echo useragent($comment['useragent']); ?>

将这段代码添加到到 module.php评论列表和子评论列表适当位置即可...

其他一些文件直接下载后放到模板根目录，下载地址：百度网盘 密码：2qjs