大约有 42,000 项符合查询结果(耗时:0.0401秒) [XML]

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Are list-comprehensions and functional functions faster than “for loops”?

In terms of performance in Python, is a list-comprehension, or functions like map() , filter() and reduce() faster than a for loop? Why, technically, they run in a C speed , while the for loop runs in the python virtual machine speed ?. ...
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How to remove the underline for anchors(links)?

Is there anyway (in CSS) to avoid the underline for the text and links introduced in the page .. ? 15 Answers ...
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Checking from shell script if a directory contains files

From a shell script, how do I check if a directory contains files? 26 Answers 26 ...
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What is the equivalent of the C++ Pair in Java?

Is there a good reason why there is no Pair<L,R> in Java? What would be the equivalent of this C++ construct? I would rather avoid reimplementing my own. ...
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How can I use a batch file to write to a text file?

I need to make a script that can write one line of text to a text file in the same directory as the batch file. 7 Answers ...
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How to paste yanked text into the Vim command line

I'd like to paste yanked text into Vim's command line. Is it possible? 10 Answers 10 ...
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How to Flatten a Multidimensional Array?

Is it possible, in PHP, to flatten a (bi/multi)dimensional array without using recursion or references? 29 Answers ...
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Putting license in each code file? [closed]

I find it unnecessarily duplicated to have it in each code file, but I see it on most open source projects. Should I do that same, or just include a single license outside the code? ...
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How do I do a multi-line string in node.js?

With the rise of node.js, multi-line strings are becoming more necessary in JavaScript. 9 Answers ...
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Logical XOR operator in C++?

Is there such a thing? It is the first time I encountered a practical need for it, but I don't see one listed in Stroustrup . I intend to write: ...