小编kej*_*eji的帖子

我有一个我计划用来登录的Bootstrap下拉菜单.它似乎很好,但是当我选择用户名nput时它会消失,因为焦点已经转移到输入.我将如何添加对输入的支持,或者是否有一种工作方法？

我目前的代码是:

    <li id="fat-menu" class="dropdown">
         <a href="#" id="drop3" role="button" class="dropdown-toggle" data-toggle="dropdown" data-target="#">Login <b class="caret"></b></a>
         <ul class="dropdown-menu" role="menu" aria-labelledby="drop3">
            <li role="presentation"><input name="username" type="text" placeholder="Username" /></li>
            <li role="presentation"><input name="password" type="password" placeholder="Password" /></li>
            <li role="presentation" class="divider"></li>
            <li role="presentation"><a role="menuitem" tabindex="-1" href="#">Login</a></li>
          </ul>
     </li>

我尝试jsfiddle.我根本无法获得下拉列表:http://jsfiddle.net/KF8dv/

当我第一次开始播放AUGraph并播放带有kAudioUnitSubType_AudioFilePlayer组件的歌曲时,我收到了一个声音.口吃约3秒,但它足以打扰我加上我注意到音乐在播放时有时会停止一瞬间(我猜缓冲？).我已经尝试kAudioUnitProperty_ScheduledFilePrime将更改为随机值但注意没有变化.

我应该改变哪些变量或值来摆脱这个缺陷？这是流格式的问题吗？

我正在使用来自https://github.com/ronaldmannak/YBAudioFramework/tree/master/YBAudioUnit的YBAudioUnit

码:

YBAudioFilePlayer:

- (void)setFileURL:(NSURL *)fileURL typeHint:(AudioFileTypeID)typeHint {
    if (_fileURL) {
        // Release old file:
        AudioFileClose(_audioFileID);
    }

    _fileURL = fileURL;

    if (_fileURL) {
        YBAudioThrowIfErr(AudioFileOpenURL((__bridge CFURLRef)fileURL, kAudioFileReadPermission, typeHint, &_audioFileID));
        YBAudioThrowIfErr(AudioUnitSetProperty(_auAudioUnit, kAudioUnitProperty_ScheduledFileIDs, kAudioUnitScope_Global, 0, &_audioFileID, sizeof(AudioFileID)));

        // Get number of audio packets in the file:
        UInt32 propsize = sizeof(_filePacketsCount);
        YBAudioThrowIfErr(AudioFileGetProperty(_audioFileID, kAudioFilePropertyAudioDataPacketCount, &propsize, &_filePacketsCount));

        // Get file's asbd:
        propsize = sizeof(_fileASBD);
        YBAudioThrowIfErr(AudioFileGetProperty(_audioFileID, kAudioFilePropertyDataFormat, &propsize, &_fileASBD));

        // Get unit's asbd:
        propsize = sizeof(_fileASBD);
        AudioUnitGetProperty(_auAudioUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, …

我有一个在NSLog中输出的数组:

log: (
        {
        "case_color" = White;
        "case_description" = "";
        "case_image" = "http://site.com/get/parts/part_images/nzxtphantom410.jpeg";
        "case_name" = "NZXT Phantom 410";
        "case_price" = "99.99";
        "case_type" = ATX;
        id = 1;
    }
)

我怎么能把它放在一个NSDictionary中,所以我可以这样称呼:

NSDictionary *object;
NSString *casename object[@"case_name"];

和casename等于"NZXT Phantom 410"

我在使用此查询时遇到问题,该查询会根据不同表中的回复数量对论坛主题进行排序.我尝试使用左连接之前的地方,但我的while循环中遗漏了一些数据.

SELECT forum_topics.*, COUNT(forum_posts.comment_id) AS replies 
FROM forum_topics 
WHERE forum_topics.subcat_id = '$subcatid' 
LEFT JOIN forum_posts 
ON forum_topics.topic_id=forum_posts.topic_num  
ORDER BY replies DESC

它给我这个错误:

You have an error in your SQL syntax; check the manual that corresponds to your 
MySQL server version for the right syntax to use near 'LEFT JOIN forum_posts ON 
forum_topics.topic_id=forum_posts.topic_num ORDER BY r' at line 1

这是之前正在运行的查询:

SELECT * FROM forum_topics WHERE subcat_id = '$subcatid' ORDER BY date DESC

为了回应我使用:

$getChildCategory = mysql_query($query) or die(mysql_error());
$num = mysql_num_rows($get); …