大约有 14,000 项符合查询结果(耗时:0.0290秒) [XML]

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What's the function like sum() but for multiplication? product()?

...h is easy). Pronouncement on prod() Yes, that's right. Guido rejected the idea for a built-in prod() function because he thought it was rarely needed. Alternative with reduce() As you suggested, it is not hard to make your own using reduce() and operator.mul(): from functools import reduce # Requi...
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JQuery .each() backwards

... I like this idea/code too, but it doesn't return a chainable object (that is reversed) like the higher-voted answers :) Still, definitely a good method for the way it's setup – Ian Aug 17 '13 at 18:...
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What is the difference between UTF-8 and Unicode?

... We've got lots of languages with lots of characters that computers should ideally display. Unicode assigns each character a unique number, or code point. Computers deal with such numbers as bytes... skipping a bit of history here and ignoring memory addressing issues, 8-bit computers would treat a...
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Calling Objective-C method from C++ member function?

...iate MyClass in MyClassImpl's constructor, but that generally isn't a good idea. The MyClass instance is destructed from MyClassImpl's destructor. As with the C-style implementation, the wrapper methods simply defer to the respective methods of MyClass. MyCPPClass.h (PIMPL) #ifndef __MYCPP_CLASS...
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Cannot refer to a non-final variable inside an inner class defined in a different method

... } } Seems like probably you could do a better design than that, but the idea is that you could group the updated variables inside a class reference that doesn't change. share | improve this answe...
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How to determine if an NSDate is today?

...rst one? I hadn't really thought about that, but it also seems like a good idea. – David Kanarek Dec 5 '12 at 11:59 1 ...
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How to print the contents of RDD?

...is to use collect(): myRDD.collect().foreach(println) That's not a good idea, though, when the RDD has billions of lines. Use take() to take just a few to print out: myRDD.take(n).foreach(println) share | ...
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Sending emails with Javascript

... the idea was that my application fills the body for them. I'll edit the question to make that clearer... – nickf Nov 7 '08 at 3:42 ...
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Cleanest way to get last item from Python iterator

...re (idx, value) tuple whereas we're only interested in value. Interesting idea. – Taylor Edmiston Jun 12 '17 at 2:18 add a comment  |  ...
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How do I replace a git submodule with another repo?

...not work for me. My submodule still pointed to the old URL after this. Any ideas why? – Arne Nov 22 '13 at 15:55 34 ...