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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
...尽可能少重复
处理选项
在C#中，你可以使用Regex(String, RegexOptions)构造函数来设置正则表达式的处理选项。如：Regex regex = new Regex(@"\ba\w{6}\b", RegexOptions.IgnoreCase);
上面介绍了几个选项如忽略大小写，处理多行等，这些选项...
What is the meaning of “non temporal” memory accesses in x86
...f the writes ineffective.
For this and similar situations, processors provide support for non-temporal write operations. Non-temporal in this context means the data will not be reused soon, so there is no reason to cache it. These non-temporal write operations do not read a cache line and then modi...
Git submodule update
...try in the parent repo index), and you will need to add, commit and push said references from the main repo.
Next time you will clone that parent repo, it will populate the submodules to reflect those new SHA1 references.
The rest of this answer details the classic submodule feature (reference to a...
What is the most robust way to force a UIView to redraw?
... a viewController that then proceeds to do the following. from method viewDidLoad I fire off a URLRequest for data that is required by on of my subviews - a UIView subclass with drawRect overridden. When the data arrives from the cloud I start building my view hierarchy. the subclass in question get...
What is the purpose of the -m switch?
...a module located using -m is executed just as if its filename had been provided on the command line.
With -m more is possible, like working with modules which are part of a package, etc. That's what the rest of PEP 338 is about. Read it for more info.
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...exes (like what pthread gives me or whatever the native system library provides) or a single one for an object.
5 Answers
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Git for beginners: The definitive practical guide
Ok, after seeing this post by PJ Hyett , I have decided to skip to the end and go with Git .
37 Answers
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classical inheritance vs prototypal inheritance in javascript
I have googled so many links and can't get good idea about the difference between classical inheritance and prototypal inheritance?
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How to write WinForms code that auto-scales to system font and dpi settings?
...PF." However, I think that is based on .NET 1.1; it appears they actually did a pretty good job of implementing auto-scaling in .NET 2.0. At least based on our research and testing so far. However, if some of you out there know better, we'd love to hear from you. (Please don't bother arguing we sho...
Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
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Besides the tests mentioned in the question, I recently created some new ones involving much fewer HTTP calls (5000 compared to 1 million previously) but on requests that took much longer to execute (500 milliseconds compared to...