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新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Checklist。
随着用户数据的不断增长，index管理也成了大问题，我们需要基于大量不同的用户配置定期的create、optimize、close、delete、snapshot不同的index，在某个服务器上手工配置crontab已是不可能，而且cron是单点。于是我们开发...
关于我们 · App Inventor 2 中文网，少儿编程陪伴者
...一名学生，升级VIP会员后，可以随时随地在线编程，遇到问题提问都能及时得到详细解答，我的App开发技能得到了极大的提升！另外，我享受到VIP学生价格优惠，非常划算！ ...
nginx showing blank PHP pages
...ginx that's shipped with Centos). I'd love to see the documentation around all of this improve.
– Jorre
Mar 27 '14 at 16:23
1
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How to Free Inode Usage?
...age is 100% (using df -i command).
However after deleting files substantially, the usage remains 100%.
15 Answers
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BLE 低功耗蓝牙调试助手：扫描、连接、读写、订阅通知（附 .aia 源码） · ...
...（解决乱码）
十六进制文本转字节发送
常见问题
用到的组件
验证范围
BLE 调试助手：一个 App 完成低功耗蓝牙的扫描、连接、选特征、读取、订阅通知和发送，收到的每一包同时显示十六进制和 UTF-8 文本。
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Are PHP Variables passed by value or by reference?
... function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference.
To have an argument to a function always passed by reference, prepend an ampersand (&) to the argument name in the function definition.
&l...
How to check that an object is empty in PHP?
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empty doesn't actually check if an array is empty, empty($var) equivalent to (!isset($var) || !$var). You can replace your empty($arr)s with !$arr since array() == FALSE
– Timothy Zorn
Aug 20 '15 at 18:35...
C++字符串截断时中文的处理问题（中文被截断怎么处理？） - c++1y / stl - ...
// 防止后台错误消息中汉字双字节被截断出现乱码
if (pRspMsg->RspMsg.buf[pRspMsg->RspMsg.Length() - 2] & 0x80)
pRspMsg->RspMsg.buf[pRspMsg->RspMsg.Length() - 2] = 0;
一个字节和0x80与运算（& 0x80 ）是否...
Make var_dump look pretty
...
I really love var_export(). If you like copy/paste-able code, try:
echo '<pre>' . var_export($data, true) . '</pre>';
Or even something like this for color syntax highlighting:
highlight_string("<?php\n\$data ...
Why use sprintf function in PHP?
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sprintf has all the formatting capabilities of the original printf which means you can do much more than just inserting variable values in strings.
For instance, specify number format (hex, decimal, octal), number of decimals, padding a...