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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术

...等等。至此,一个RTD Server的生命周期就结束了。 一 C#实例 来源:http://www.cnblogs.com/makemelaugh/archive/2008/11/06/1327960.html 创建一个项目ExcelRTD,添加Microsoft.Office.Interop.Excel引用。创建一个类MarketData.cs,这个类继承IRtdServer接口...
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...分别是Alfred Aho、Brian Kernighan、Peter Weinberger。gawk是awk的GNU本,它提供了Bell实验室和GNU的一些扩展。下面介绍的awk是以GUN的gawk为例的,在linux系统中已把awk链接到gawk,所以下面全部以awk进行介绍。 2. awk命令格式和选项 ...
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Any reason why scala does not explicitly support dependent types?

...inda defies the purpose of compiler acting as a proof assistant. (EDITED 2018.8.10) Talking about proof assistance, here is another big difference between Idris and Scala. There is nothing in Scala (or Haskell) that can prevent from writing diverging proofs: case class Void(underlying: Nothing) e...
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Why shouldn't I use mysql_* functions in PHP?

...rely as of PHP 7.0 (released December 2015) This means that as of 31 Dec 2018 it does not exist in any supported version of PHP. If you are using a version of PHP which supports it, you are using a version which doesn't get security problems fixed. Lacks an OO interface Doesn't support: Non-blo...
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分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...个Master都提供read-write服务。这个模型是Master-Slave的加强,数据间同步一般是通过Master间的异步完成,所以是最终一致性。 Master-Master的好处是,一台Master挂了,别的Master可以正常做读写服务,他和Master-Slave一样,当数据没有被...
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How to become an OpenCart guru? [closed]

...ges under construction but it is going to be helpful. [Update] As of Jan-2018, opencarhelp.com domain is down. share | improve this answer | follow | ...
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mmap() vs. reading blocks

... The upshot is that, on my (modern Intel, circa 2018) hardware, mmap has lower overhead than read for larger-than-page-sized (4 KiB) reads. Now it's very true that if you want to access data sparsely and randomly, mmap is really, really good - but the converse isn't necess...
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What is TypeScript and why would I use it in place of JavaScript? [closed]

...nd won third place in the most loved programming language category. In the 2018 state of js survey TypeScript was declared as one of the two big winners in the JavaScript flavors category (with ES6 being the other). In the 2019 StackOverlow deverloper survey TypeScript rose to the 9th place of most ...
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...e 30 Minute Regex Tutorial。由于评论里有过长的URL,所以本页排比较... 来园子之前写的一篇正则表达式教程,部分翻译自codeproject的The 30 Minute Regex Tutorial。 由于评论里有过长的URL,所以本页排比较混乱,推荐你到原处...
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How to run a program without an operating system?

...ng that Linux based Unikernel news, but felt too edgy yet: next.redhat.com/2018/11/14/ukl-a-unikernel-based-on-linux – Ciro Santilli 郝海东冠状病六四事件法轮功 Nov 26 '18 at 11:10 ...