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App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网

...播 属性 方法 事件 « 返回首页 最新版拓展下载: edu.mit.appinventor.ble-20230728.aix 低功耗蓝牙,也称为蓝牙LE 或简称 BLE,是一类似于经典蓝牙的新通信协议,不同之处在于它旨在消耗更少的功耗和成本,同时保持同...
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What is q=0.5 in Accept* HTTP headers?

...o be based on the quality of the encoding. Consider, for instance, FLAC vs MP3. You could say something like: "Send me the MP3 version if it at worst is 50% of the quality of the lossless version. If it isn't, send me the FLAC version." How to quantify such quality, and whether that is used in pract...
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Static variables in JavaScript

...le: ' + this.title; } }; // static property Podcast.FILE_EXTENSION = 'mp3'; // static function Podcast.download = function(podcast) { console.log('Downloading ' + podcast + ' ...'); }; Given that example, you can access the static properties/function as follows: // access static properti...
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How to get the Full file path from URI

... Use: String path = yourAndroidURI.uri.getPath() // "/mnt/sdcard/FileName.mp3" File file = new File(new URI(path)); or String path = yourAndroidURI.uri.toString() // "file:///mnt/sdcard/FileName.mp3" File file = new File(new URI(path)); ...
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Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...终于找到了,原来使用Eclipse进行OpenGL开发,还需要另外下载OpenGL插件,如下图: 这里有OpenGL的类库,还有一个示例,把类库下载下来,解压,放到Eclipse的Plugin目录下,然后在我们的项目中添加依赖项,就可以看到我们需要...
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What is the difference between a string and a byte string?

... For example: If you want to store music, you must first encode it using MP3, WAV, etc. If you want to store a picture, you must first encode it using PNG, JPEG, etc. If you want to store text, you must first encode it using ASCII, UTF-8, etc. MP3, WAV, PNG, JPEG, ASCII and UTF-8 are examples o...
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REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...可以不安装或在安装完 pdksh 以后再安装。 将pdksh 程序包下载到本地。 Pdksh安装包需要在网上下载光盘里没有 # rpm -ivh pdksh-5.2.14-37.el5_8.1.x86_64.rpm 注意:如果提示该程序包与 ksh冲突,如果已经安装 ksh,建议使用命令 rpm -e ksh...
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How to create a MySQL hierarchical recursive query

...| 2 | | 6 | PORTABLE ELECTRONICS | 1 | | 7 | MP3 PLAYERS | 6 | | 8 | FLASH | 7 | | 9 | CD PLAYERS | 6 | | 10 | 2 WAY RADIOS | 6 | +-------------+----------------------+--------+ ...
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进程间通信(IPC)的几方式 - C/C++ - 清泛网 - 专注C/C++及内核技术

进程间通信(IPC)的几方式进程间通信就是在不同进程之间传播或交换信息,那么不同进程之间存在着什么双方都可以访问的介质呢?进程的用户空间是互相独立的,一般而言...进程间通信就是在不同进程之间传播或交换信息...
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Win10正式版官方原版ISO镜像下载大全(64位&32位) - 软件下载 - 清泛网 - ...

Win10正式版官方原版ISO镜像下载大全(64位&32位)Win10 官方原版 正式版【64位简体中文家庭 专业版】 文件名:cn_windows_10_multiple_editions_x64_dvd_6848463.iso 体积:4.01GB SHA1:C71D49A6...【64位简体中文家庭/专业版】 文件名:cn_wi...