大约有 3,000 项符合查询结果(耗时:0.0215秒) [XML]

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How do I make a matrix from a list of vectors in R?

... > library(plyr) > as.matrix(ldply(a)) V1 V2 V3 V4 V5 V6 [1,] 1 1 2 3 4 5 [2,] 2 1 2 3 4 5 [3,] 3 1 2 3 4 5 [4,] 4 1 2 3 4 5 [5,] 5 1 2 3 4 5 [6,] 6 1 2 3 4 5 [7,] 7 1 2 3 4 5 [8,] 8 1 2 3 4 5 [9,] 9 1 2 3 ...
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How do I type using my keyboard on the iphone simulator?

... 72 Don't trash the iPhone simulator preference files. There's no need to do this. Look in the sim...
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How do I perform an IF…THEN in an SQL SELECT?

... Zyku 1,29722 gold badges2121 silver badges3737 bronze badges answered Sep 15 '08 at 14:37 John SheehanJohn She...
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Pipe to/from the clipboard in Bash script

... 72 Note that xclip -selection c will send data to the clipboard that works with ^C, ^V in most applications – Klaas van ...
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What does ':' (colon) do in JavaScript?

... 72 You guys are forgetting that the colon is also used in the ternary operator (though I don't kno...
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Save all files in Visual Studio project as UTF-8

... 72 Since you're already in Visual Studio, why not just simply write the code? foreach (var f in n...
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Creating a div element in jQuery [duplicate]

... 72 No, no, no! The example (and the entire pointless discussion about quotes below) illustrates what not to do. There is a reason why jQuery p...
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fatal error: Python.h: No such file or directory

... 72 Two things you have to do. Install development package for Python, in case of Debian/Ubuntu/Mi...
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What is the difference between HTTP status code 200 (cache) vs status code 304?

...nclude style.css?v1 and increment in the <link> element to style.css?v2 when there are changes. – Ben Regenspan Nov 3 '09 at 3:46 1 ...
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Eclipse IDE: How to zoom in on text?

... 72 Too late but it could be helpful : Go to Window Menu > Preferences > General > Appear...