大约有 5,229 项符合查询结果(耗时:0.0133秒) [XML]

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Why does the order of the loops affect performance when iterating over a 2D array?

...brought over to the CPU in little chunks (called 'cache lines'), typically 64 bytes. If you have 4-byte integers, that means you're geting 16 consecutive integers in a neat little bundle. It's actually fairly slow to fetch these chunks of memory; your CPU can do a lot of work in the time it takes fo...
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Redirect all to index.php using htaccess

... Using xampp on win 10 64 bit this is the rewrite rule that worked for my instance. – nwolybug Aug 11 at 21:03 add a commen...
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What are the underlying data structures used for Redis?

...erence the data stored at that node. Pointers require memory (8 bytes on a 64 bit system), and so for small lists, a doubly linked list is very inefficient. A Zip List stores elements sequentially in a Redis String. Each element has a small header that stores the length and data type of the element...
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Remove border radius from Select tag in bootstrap 3

...ackground-repeat: no-repeat; background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAMCAYAAABSgIzaAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyJpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG...
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Reliable method to get machine's MAC address in C#

...s running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been scraping the output of "ipconfig /all" but this is terribly unreliable...
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Why would you use Oracle database? [closed]

... Robert GouldRobert Gould 64.3k5757 gold badges174174 silver badges267267 bronze badges ...
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Value of i for (i == -i && i != 0) to return true in Java

...are byte, short, int, and long, whose values are 8-bit, 16-bit, 32-bit and 64-bit signed two's-complement integers ..." and "The values of the integral types are integers in the following ranges ... For int, from -2147483648 to 2147483647, inclusive" and the definition of the Java unar...
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How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?

... 64 I recently saw that I was having the same problem. Visual Studio 2010 was refusing to update t...
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Why can't static methods be abstract in Java?

... 64 @erickson - Even without an instance, the class hierarchy is intact - inheritance on static methods can work just like inheritance of insta...
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What does %~dp0 mean, and how does it work?

...irst, I'd like to recommend this useful reference site for batch: http://ss64.com/nt/) Then just another useful explanation: http://htipe.wordpress.com/2008/10/09/the-dp0-variable/ The %~dp0 Variable The %~dp0 (that’s a zero) variable when referenced within a Windows batch file will ex...