大约有 4,769 项符合查询结果(耗时:0.0256秒) [XML]

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windows batch SET inside IF not working

... echo %var2% occurs before the block is executed. At this time var2 is empty. Therefore the delayedExpansion syntax exists, it uses ! instead of % and it is evaluated at execution time, not parse time. Please note that in order to use !, the additional statement setlocal EnableDelayedExpansion i...
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Check time difference in Javascript

How would you check time difference from two text-boxes in Javascript? 17 Answers 17 ...
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Commit only part of a file in Git

When I make changes to a file in Git, how can I commit only some of the changes? 23 Answers ...
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Matplotlib transparent line plots

... matplotlib and I'd like to plot each of the lines with partial transparency so that the red (plotted second) doesn't obscure the blue. ...
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Why does Google +1 record my mouse movements? [closed]

This is only on pages with a Google +1 box on my website: 9 Answers 9 ...
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Understanding FFT output

... You should neither look for the real or imaginative part of a complex number (that what's your real and imaginary array is). Instead you want to look for the magnitude of the frequency which is defined as sqrt (real * real + ...
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Is there a decorator to simply cache function return values?

... Starting from Python 3.2 there is a built-in decorator: @functools.lru_cache(maxsize=100, typed=False) Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expens...
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Comparing two NumPy arrays for equality, element-wise

What is the simplest way to compare two NumPy arrays for equality (where equality is defined as: A = B iff for all indices i: A[i] == B[i] )? ...
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How to compare type of an object in Python?

Basically I want to do this: 14 Answers 14 ...
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How to position one element relative to another with jQuery?

... NOTE: This requires jQuery UI (not just jQuery). You can now use: $("#my_div").position({ my: "left top", at: "left bottom", of: this, // or $("#otherdiv") collision: "fit" }); For fast positioning (jQuery UI/...