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
}
?>

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