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App Inventor 2 中文网 · 项目指南
...帮助”菜单 -> AI伴侣信息，直接手机扫码安装到手机 或 下载AI伴侣到电脑并拖动到商业模拟器安装。 注：手机和电脑必须在同一局域网内，原理是电脑端启动WEB服务器，手机AI伴侣与WEB通信；电脑连手机热...
How do malloc() and free() work?
... virtual memory manager can handle (most often multiples of 512 bytes e.g. 4KB).
So returning 40 Bytes to the OS will just not work. So what does free do?
Free will put the memory block in its own free block list. Normally it also tries to meld together adjacent blocks in the address space. The fr...
Why is the .bss segment required?
...ny uninitialized buffers 4096 bytes in length. Would you want all of those 4k buffers to contribute to the size of the binary? That would be a lot of wasted space.
– Jeff Mercado
Mar 2 '12 at 15:02
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What is the difference between localStorage, sessionStorage, session and cookies?
...domain. This gives you considerably more space to work with than a typical 4KB cookie.
The data is not sent back to the server for every HTTP request (HTML, images, JavaScript, CSS, etc) - reducing the amount of traffic between client and server.
The data stored in localStorage persists until explic...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...，与同学合伙创办了Sour网站，这是一个提供流媒体交换下载的服务平台，网友之间可以交换音乐和电影视频。
或许只是偶然，这个网站从一诞生就触犯了美国版权保护法。1999年，Sour被30多家音乐、影视出版巨头联合起诉，索...
App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
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DynamicComponents 拓展
.aix 拓展下载（最新版 v2.3.0）：
com.yusufcihan.DynamicComponents.aix
完全支持 App Inventor 2 的动态组件扩展。它基于 Java 的反射功能，因此只需键入类名称即可搜索类来创建组件。因此，...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...the number of printed As:
If N > 10, the number of As will be: 4^{N+1-4K}·3^{5K-N-1}
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MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...为MongoDB使用内存映射文件,所以必须使用64位版本。官方下载地址如下：http: www mongodb org downloads实验环境使用的Mongodb版本为mon 因为MongoDB使用内存映射文件,所以必须使用64位版本。
官方下载地址如下：http://www.mongodb.org/downloads...
CentOS+Nginx+PHP+MySQL详细配置(图解) - 更多技术 - 清泛网 - 专注C/C++及内核技术
...本一致，这是必须的，切记！
首先我们把PHP和PHP-FPM下载到同一目录下，此次用的为php-5.3.0.tar.bz2和php-5.3.0-fpm-0.5.12.diff.gz，下载到了同一目录下
#tar xvf php-5.3.0.tar.bz2
#gzip -cd php-5.3.0-fpm-0.5.12.diff.gz | patch -d php-5.3.0 -p1 //...
How do you validate a URL with a regular expression in Python?
.... I was going to quote the regex for validating a valid email address, but 4K+ characters don't fit in this box. These things are just hard to do, and the best answer probably is a dedicated parser once you manage to find some candidate text to feed it.
– RBerteig
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