【it168 软件频道】Discuz!7.0是康盛创想(Comsenz)公司于2008年12月份发布的一款论坛BBS建站产品。Discuz!7.0中，看到论坛中有会员在问如何控制公告标题显示的宽度，现给出一临时解决办法，希望能帮到大家。

　　一、当公告标题太长时，公告的开始时间会被截取，导致会员看不到时间。

　　二、解决方法

　　1、打开论坛根目录下的 index.php，找到：

if(!$gid) {
        $announcements = '';
        if($_DCACHE['announcements']) {
                $readapmids = !empty($_DCOOKIE['readapmid']) ? explode('D', $_DCOOKIE['readapmid']) : array();
                foreach($_DCACHE['announcements'] as $announcement) {
                        if(empty($announcement['groups']) || in_array($groupid, $announcement['groups'])) {
                                if(empty($announcement['type'])) {
                                        $announcements .= '

'.$announcement['subject'].
                                                '('.gmdate($dateformat, $announcement['starttime'] + $timeoffset * 3600).')

';
                                } elseif($announcement['type'] == 1) {
                                        $announcements .= '

'.$announcement['subject'].
                                                '('.gmdate($dateformat, $announcement['starttime'] + $timeoffset * 3600).')

';
                                }
                        }
                }
        }

　　修改为：

if(!$gid) {
        $announcements = '';
        if($_DCACHE['announcements']) {
                $readapmids = !empty($_DCOOKIE['readapmid']) ? explode('D', $_DCOOKIE['readapmid']) : array();
                foreach($_DCACHE['announcements'] as $announcement) {
                        if(empty($announcement['groups']) || in_array($groupid, $announcement['groups'])) {
                                if(empty($announcement['type'])) {
                                        $announcements .= '

'.''.$announcement['subject'].''.
                                                '('.gmdate($dateformat, $announcement['starttime'] + $timeoffset * 3600).')

';
                                } elseif($announcement['type'] == 1) {
                                        $announcements .= '

'.''.$announcement['subject'].''.
                                                '('.gmdate($dateformat, $announcement['starttime'] + $timeoffset * 3600).')

';
                                }
                        }
                }
        }

　　修改完毕，保存文件。

　　2、打开模板文件 css_common.htm，找到：#ann li { overflow: hidden;  padding-left: 10px; white-space: nowrap; }

　　在其下面添加如下css代码：

　　#ann a:hover { text-decoration: none; }

　　#ann span { display: block; float: left; width: 100px; height: 30px; overflow: hidden; }

　　其中span属性 width: 100px; 中的100 为标题的长度，请根据自己的需要修改大小。

　　修改完毕，保存文件。

　　3、到后台更新模板缓存。

　　三、修改长度后，显示如下：