大约有 3,000 项符合查询结果(耗时:0.0123秒) [XML]

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What is your preferred style for naming variables in R? [closed]

...ered Nov 16 '12 at 8:55 Rasmus BååthRasmus Bååth 3,62222 gold badges2121 silver badges2525 bronze badges ...
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What is the equivalent of the C++ Pair in Java?

...return "(" + first + ", " + second + ")"; – Juha Syrjälä Sep 1 '09 at 8:31 6 Also, either mark ...
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Multi-project test dependencies with gradle

...s no longer a public property of a project. – David Pärsson Jan 14 '13 at 10:39 3 ...
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Split a string by a delimiter in python

...he variable ev contains this string and we apply separator '@': Sa., 23. März@19:00@Klavier + Orchester: SPEZIAL Then, after split operation the variable date will have value "Sa., 23. März" time will have value "19:00" event_name will have value "Klavier + Orchester: SPEZIAL" ...
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pypi UserWarning: Unknown distribution option: 'install_requires'

...ed Nov 28 '11 at 15:38 Fredrik HåårdFredrik Håård 2,4622020 silver badges3232 bronze badges ...
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Hashing a string with Sha256

... answered May 18 at 19:26 Erçin DedeoğluErçin Dedeoğlu 3,22944 gold badges3434 silver badges5656 bronze badges ...
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Why do we use Base64?

...vote, but has 64 votes. Sorry this is perfect. – Jessé Catrinck Jan 7 '16 at 18:31  |  show 6 more comments ...
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How do you get a timestamp in JavaScript?

...ow it will look: new Date() Thu Oct 29 2015 08:46:30 GMT+0100 (Mitteleuropäische Zeit ) new Date(now()) Thu Oct 29 1970 09:46:30 GMT+0100 (Mitteleuropäische Zeit ) Of course it will break daylight saving time but depending on what you are building this might be useful to you if you need t...
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Extract subset of key-value pairs from Python dictionary object?

...works in 2.7 too): {k: bigdict[k] for k in ('l', 'm', 'n')} Update: As Håvard S points out, I'm assuming that you know the keys are going to be in the dictionary - see his answer if you aren't able to make that assumption. Alternatively, as timbo points out in the comments, if you want a key tha...
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Convert pandas dataframe to NumPy array

...ed Mar 13 '19 at 14:09 Jean-François Corbett 33.6k2525 gold badges124124 silver badges172172 bronze badges answered Jul 17 '14 at 1:13 ...