大约有 47,000 项符合查询结果(耗时:0.0489秒) [XML]

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Split string every nth character?

... >>> line = '1234567890' >>> n = 2 >>> [line[i:i+n] for i in range(0, len(line), n)] ['12', '34', '56', '78', '90'] share | ...
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Speed up the loop operation in R

... 438 Biggest problem and root of ineffectiveness is indexing data.frame, I mean all this lines where...
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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]

... Mehrdad AfshariMehrdad Afshari 379k8383 gold badges822822 silver badges775775 bronze badges ...
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Why is there no tuple comprehension in Python?

... You can use a generator expression: tuple(i for i in (1, 2, 3)) but parentheses were already taken for … generator expressions. share | improve this answer | ...
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How to convert an integer to a string in any base?

... | edited Mar 13 '18 at 0:18 Devin 1,97522 gold badges1717 silver badges2525 bronze badges an...
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How to dynamically compose an OR query filter in Django?

... 13 Answers 13 Active ...
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How do I verify that an Android apk is signed with a release certificate?

... 376 Use this command, (go to java < jdk < bin path in cmd prompt) $ jarsigner -verify -verb...
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How can you dynamically create variables via a while loop? [duplicate]

... | edited Feb 18 '11 at 2:37 answered Feb 18 '11 at 1:28 Jo...
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How can I determine the direction of a jQuery scroll event?

... | edited Mar 21 '13 at 17:50 user372743 answered Dec 1 '10 at 17:04 ...
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Matplotlib: “Unknown projection '3d'” error

... First off, I think mplot3D worked a bit differently in matplotlib version 0.99 than it does in the current version of matplotlib. Which version are you using? (Try running: python -c 'import matplotlib; print matplotlib."__version__") I'm guessing...