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SVG gradient using CSS

...4 24h168c13 0 24-11 24-24l0-47c0-13-11-24-24-24h-21v-190c0-13-11-23-24-23h-123z"></path> </svg> <svg height="0" width="0"> <defs> <linearGradient id="lgrad-p" gradientTransform="rotate(75)"><stop offset="45%" stop-color="#4169e1"><...
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Is “double hashing” a password less secure than just hashing it once?

...use an ordered list of the most likely passwords. They start with "password123" and progress to less frequently used passwords. Let's say an attackers list is long, with 10 billion candidates; suppose also that a desktop system can compute 1 million hashes per second. The attacker can test her who...
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Regular expression for letters, numbers and - _

...et to show how you can use this pattern: <?php $arr = array( 'screen123.css', 'screen-new-file.css', 'screen_new.js', 'screen new file.css' ); foreach ($arr as $s) { if (preg_match('/^[\w.-]*$/', $s)) { print "$s is a match\n"; } else { print "$s is NO match!!!\n"; }; } ...
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Code Golf: Collatz Conjecture

...ut by passing a number to it on the command line: ; ; >> $ ./collatz 123 ; >> 123 --> 370 --> 185 --> 556 --> 278 --> 139 --> 418 --> 209 --> 628 --> 314 ; >> --> 157 --> 472 --> 236 --> 118 --> 59 --> 178 --> 89 --> 268 --> 134...
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Convert Rows to columns using 'Pivot' in SQL Server

..., 212), (105, 2, 78), (109, 2, 97), (105, 3, 60), (102, 3, 123), (101, 3, 220), (109, 3, 87); If your values are known, then you will hard-code the query: select * from ( select store, week, xCount from yt ) src pivot ( sum(xcount) for week in ([1], [2], [3]) ) pi...
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LR性能测试结果样例分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...服务器当前无法再进行计数器数据的获取了,所以,本次操作系统资源的监控只得到了场景执行的前23分半钟的数据。这样对本次测试结果有一定的影响。 获得上述数据后,最新的测试结果记录表如表3所示。 测试项 ...
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AsyncProcedures异步过程扩展 · App Inventor 2 中文网

...示例 示例1:数据处理 示例2:文件操作 常见问题 Q: 异步过程中如何更新UI? Q: 如何处理异步过程的错误? Q: 异步过程会阻塞应用吗? Q: 如何控制异步...
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...,这个应用程序提供了一个界面,用户通过这个界面访问操作系统内核的服务。Ken Thompson的sh是第一种Unix Shell,Windows Explorer是一个典型的图形界面Shell。 shell脚本(shell script),是一种为shell编写的脚本程序。业界所说的shell通...
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How to use hex color values

... How would you handle 123ABC? The compiler is burking at it not being a digit. – Islam Q. Mar 2 '16 at 6:28 1 ...
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C++并发编程(中文版) - 文档下载 - 清泛网 - 专注C/C++及内核技术

...、std::future和std::async等基础类的使用,到内存模型和原子操作、基于锁和无锁数据结构的构建,再扩展到并行算法、线程管理,最后还介绍了多线程代码的测试工作。 本书的附录部分还对C++11新语言特性中与多线程相关的项目...