大约有 47,000 项符合查询结果(耗时:0.0513秒) [XML]

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Global access to Rake DSL methods is deprecated

...may see something like rake aborted! You have already activated Rake 0.9.1 ... I still had a copy of Rake 0.9.1 in my directory so I deleted it. You can "delete" Rake 0.9.1 by running the following command: gem uninstall rake -v=0.9.1 If you have multiple versions of the gem installed, you'...
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How do I make a matrix from a list of vectors in R?

... 124 One option is to use do.call(): > do.call(rbind, a) [,1] [,2] [,3] [,4] [,5] [,6] ...
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How is “int* ptr = int()” value initialization not illegal?

... 110 int() is a constant expression with a value of 0, so it's a valid way of producing a null poin...
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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...

... 185 Because you are comparing the (boolean) result of the first equality with the (non-boolean) th...
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What's the algorithm to calculate aspect ratio?

... 18 Answers 18 Active ...
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Regular expression for floating point numbers

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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?

... 156 This approach will use the actual boolean type (and resolve to true and false) if the compiler...
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Regular expression to match any character being repeated more than 10 times

...le regular expression to match the same character being repeated more than 10 or so times. So for example, if I have a document littered with horizontal lines: ...
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How do I replace NA values with zeros in an R dataframe?

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Can I keep Nuget on the jQuery 1.9.x/1.x path (instead of upgrading to 2.x)?

... 117 In my opinion, this is a mistake on the package author's part. An update which removes support...