大约有 47,000 项符合查询结果（耗时：0.0603秒） [XML]
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
How to wait in a bash script for several subprocesses spawned from that script to finish and return exit code !=0 when any of the subprocesses ends with code !=0 ?
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initialize a numpy array
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If you know only know the width (e.g. needed for np.concatenate()), you can initialize with: np.empty((0, some_width)). 0, so your first array won't be garbage.
– NumesSanguis
Sep 1 '17 at 5:59
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How to print binary tree diagram?
...Node<T>> newNodes = new ArrayList<Node<T>>();
for (Node<T> node : nodes) {
if (node != null) {
System.out.print(node.data);
newNodes.add(node.left);
newNodes.add(node.right);
} else {
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Make xargs execute the command once for each line of input
How can I make xargs execute the command exactly once for each line of input given?
It's default behavior is to chunk the lines and execute the command once, passing multiple lines to each instance.
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iPad Safari scrolling causes HTML elements to disappear and reappear with a delay
I'm currently developing a web app using html5 and jQuery for iPad Safari. I'm running into a problem wherein large scroll areas cause the elements that are offscreen to appear after a delay when I scroll down to them.
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How can I shrink the drawable on a button?
...tCompoundDrawables(sd.getDrawable(), null, null, null); //set drawableLeft for example
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Is floating point math broken?
... standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly represented.
For 0.1 in the standard binary64 format, the representation ...
Java synchronized static methods: lock on object or class
...class. The locking is essentially the same as locking on the Object.class for each synchronized method.
– Steven
Oct 16 '12 at 23:36
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Modify SVG fill color when being served as Background-Image
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Don't forget if you're serving the SVG from a server-side script, to make sure you also send the correct MIME header. In PHP this would be: <?php header('Content-type: image/svg+xml'); ?>
– slightlyfault...
Convert RGB to RGBA over white
...ossible rgba color (when displayed over white). Make sense? I'm looking for an algorithm, or at least idea of an algorithm for how to do so.
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