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WCF:使用Array替代List - 更多技术 - 清泛网 - 专注C/C++及内核技术

...le exaple is only to show high duplex performance. } } 搜索这个问题的解决方案花了我相当数量的时间,然后以字节数组(array of bytes)替换List<byte>得到了更好的结果:CPU基本1-2%。为什么几乎相同类型的数据结果存在这么大的差异? ...
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What is the difference between window, screen, and document in Javascript?

...at about the document object then? The document object is your html, aspx, php, or other document that will be loaded into the browser. The document actually gets loaded inside the window object and has properties available to it like title, URL, cookie, etc. What does this really mean? That means i...
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Scalar vs. primitive data type - are they the same thing?

...ce of scalars and primitives, it depends on the language. According to the PHP manual, for example, only half of its primitive types are scalars: php.net/manual/en/language.types.intro.php – Joe Bowbeer May 16 '16 at 18:36 ...
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What is the best regular expression to check if a string is a valid URL?

...EFFFD}!\$&amp;amp;'\(\)\*\+,;=:@])|[\/\?])*)?)$/i How they were compiled (in PHP): &amp;lt;?php /* Regex convenience functions (character class, non-capturing group) */ function cc($str, $suffix = '', $negate = false) { return '[' . ($negate ? '^' : '') . $str . ']' . $suffix; } function ncg($str, $...
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How to tell if node.js is installed or not

... My mistake, I forgot to mention I am running this through a php script. So where then will it be printed if not by terminal? – user1340052 May 7 '12 at 1:38 ...
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Getting the last revision number in SVN?

Using PHP, Perl, or Python (preferably PHP), I need a way to query an SVN database and find out the last revision number sent to SVN. I don't need anything other than that. It needs to be non-intensive (so I do it every 5 minutes as a cron job; SVN's performance should not be affected). ...
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Difference between \w and \b regular expression meta characters

...javascriptkit.com/javatutors/redev2.shtml http://www.virtuosimedia.com/dev/php/37-tested-php-perl-and-javascript-regular-expressions http://www.i-programmer.info/programming/javascript/4862-master-javascript-regular-expressions.html I found this to be a very useful book: Mastering Regular Expres...
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Can anyone explain what JSONP is, in layman terms? [duplicate]

...p; xhr.status == 200) { // success }; }; xhr.open("GET", "somewhere.php", true); xhr.send(); JSONP Request: var tag = document.createElement("script"); tag.src = 'somewhere_else.php?callback=foo'; document.getElementsByTagName("head")[0].appendChild(tag); The difference between a JSON...
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Using OpenSSL what does “unable to write 'random state'” mean?

... Yes, if you run from php web server, the user is www-data, and you should add "export" before every openssl: shell_exec('export RANDFILE=".rnd";openssl ecparam -genkey -name secp256k1')) – diyism Jun 21 '13...
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How do I match any character across multiple lines in a regular expression?

..., but there should be a modifier that you can add to the regex pattern. In PHP it is: /(.*)&amp;lt;FooBar&amp;gt;/s The s at the end causes the dot to match all characters including newlines. share | imp...