大约有 1,390 项符合查询结果（耗时：0.0262秒） [XML]
Are std::vector elements guaranteed to be contiguous?
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MottiMotti
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How to deal with floating point number precision in JavaScript?
...said may not be obvious enough: (9.99*5).toPrecision(2) = 50 instead of 49.95 because toPrecision counts the whole number, not just decimals. You can then use toPrecision(4), but if your result is >100 then you're out of luck again, because it'll allow the first three numbers and one decimal, tha...
How does the bitwise complement operator (~ tilde) work?
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MottiMotti
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Extract first item of each sublist
...nd numpy-way. Also explained by @dawg:
%timeit list(np.array(lst)[:,0])
4.95 µs ± 179 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)
Surprisingly (well, at least for me) the native way using list comprehension is the fastest and about 10x faster than the numpy-way. Running the two...
How do you tell if caps lock is on using JavaScript?
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95
You can give it a try.. Added a working example. When focus is on input, turning on caps lock...
How to generate a number of most distinctive colors in R?
... maxColorValue=255),
rgb(103,143,57, maxColorValue=255),
rgb(196,95,46, maxColorValue=255),
rgb(79,134,165, maxColorValue=255),
rgb(205,71,103, maxColorValue=255),
rgb(203,77,202, maxColorValue=255),
rgb(115,113,206, maxColorValue=255)))
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In Python how should I test if a variable is None, True or False
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kgiannakakiskgiannakakis
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How can I determine if a .NET assembly was built for x86 or x64?
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cfedukecfeduke
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1
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Retrieve list of tasks in a queue in Celery
...9828a48bc86fe993b210d984f 0
10@torob2.celery.pidbox 0
11926b79e30a4f0a9d95df61b6f402f7 0
15c036ad25884b82839495fb29bd6395 1
celerey_mail_worker@torob2.celery.pidbox 0
celery 166
celeryev.795ec5bb-a919-46a8-80c6-5d91d2fcf2aa 0
celeryev.faa4da32-a225-4f6c-be3b-d8814856d1b6 0
the num...
Appending to an empty DataFrame in Pandas?
... edited Jun 25 '19 at 1:38
cs95
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answered May 16 '13 at 20:58
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