大约有 40,000 项符合查询结果(耗时:0.0637秒) [XML]

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How can I multiply and divide using only bit shifting and adding?

...kes a constant multiple of time compared to addition and shifting. If I recall correctly, modern processors, if pipelined properly, can do multiplication just about as fast as addition, by messing with the utilization of the ALUs (arithmetic units) in the processor. ...
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Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?

...odeFile(photoPath, options); selected_photo.setImageBitmap(bitmap); or http://mihaifonoage.blogspot.com/2009/09/displaying-images-from-sd-card-in.html share | improve this answer | ...
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system(“pause”); - Why is it wrong?

...upon because it's a platform-specific hack that has nothing to do with actually learning programming, but instead to get around a feature of the IDE/OS - the console window launched from Visual Studio closes when the program has finished execution, and so the new user doesn't get to see the output o...
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One SVN repository or many?

... its own tags, trunk and branches. If one gets too big or I need to physically isolate a customer's code for their comfort, I can quickly and easily create a new repository. I recently consulted with a relatively large firm on migrating multiple source code control systems to Subversion. They have...
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What does “%” (percent) do in PowerShell?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?

...torage space for number of characters you specify even if you don't use up all that space. varchar and nvarchar are variable-length which will only use up spaces for the characters you store. It will not reserve storage like char or nchar. nchar and nvarchar will take up twice as much storage spac...
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Boost Statechart vs. Meta State Machine

...th information on the performance/scalability tradeoffs can be found here: http://www.boost.org/doc/libs/1_45_0/libs/statechart/doc/performance.html share | improve this answer | ...
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How can I extract a good quality JPEG image from a video file with ffmpeg?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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How do I know which version of Javascript I'm using?

... Click on this link to see which version your BROWSER is using: http://jsfiddle.net/Ac6CT/ You should be able filter by using script tags to each JS version. <script type="text/javascript"> var jsver = 1.0; </script> <script language="Javascript1.1"> jsver = 1.1; &...
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When splitting an empty string in Python, why does split() return an empty list while split('\n') re

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...