大约有 21,000 项符合查询结果(耗时:0.0298秒) [XML]

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Why shouldn't I use mysql_* functions in PHP?

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What is the difference between bottom-up and top-down?

...s" and "bottom-up" may be "compose the subproblems"). Previously, I have read on memoization being a different kind of dynamic programming as opposed to a subtype of dynamic programming. I was quoting that viewpoint despite not subscribing to it. I have rewritten this answer to be agnostic of the te...
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Best architectural approaches for building iOS networking applications (REST clients)

...r developers in your team, but I agree, that there can be a "good" and a "bad" architecture. You said: collect the most interesting approaches from experienced iOS developers, I don't think that my approach is the most interesting or correct, but I've used it in several projects and satisfied with ...
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What is the difference between trie and radix trie data structures?

Are the trie and radix trie data structures the same thing? 3 Answers 3 ...
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Logical operators for boolean indexing in Pandas

... expectations, the designers of NumPy and Pandas refuse to guess, and instead raise a ValueError. Instead, you must be explicit, by calling the empty(), all() or any() method to indicate which behavior you desire. In this case, however, it looks like you do not want boolean evaluation, you want el...
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Encrypt and decrypt a string in C#?

... EDIT 2013-Oct: Although I've edited this answer over time to address shortcomings, please see jbtule's answer for a more robust, informed solution. https://stackoverflow.com/a/10366194/188474 Original Answer: Here's a working example derived from the "RijndaelManaged Class" document...
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mmap() vs. reading blocks

... I was trying to find the final word on mmap / read performance on Linux and I came across a nice post (link) on the Linux kernel mailing list. It's from 2000, so there have been many improvements to IO and virtual memory in the kernel since then, but it nicely explains th...
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How to find list of possible words from a letter matrix [Boggle Solver]

... solution was faster; it turns out to use regular-expression matching instead of a set of characters. Doing the same in Python about doubles the speed. share | improve this answer | ...
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Web colors in an Android color xml resource file

... You have surely made your own by now, but for the benefit of others, please find w3c and x11 below. <?xml version="1.0" encoding="utf-8"?> <resources> <color name="white">#FFFFFF</color> <color name="yellow">...
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What's the difference between eval, exec, and compile?

...ing that has statements, if you just compiled it into bytecode before instead of passing it as a string: >>> eval(compile('if 1: print("Hello")', '<string>', 'exec')) Hello >>> works without problems, even though the compiled code contains statements. It still returns None...