大约有 1,000 项符合查询结果（耗时：0.0134秒） [XML]
Is ASCII code 7-bit or 8-bit?
... is encoded on 8 bits and enjoys 256 characters (including Á, Ä, Œ, é, è and other characters useful for european languages as well as mathematical glyphs and other symbols).
While UTF-8 uses the same encoding as the basic ASCII table (meaning 0x41 is A in both codes), it does not share the sa...
Does use of final keyword in Java improve the performance?
... final does make a significant difference.
– Casper Færgemand
Apr 3 '14 at 13:05
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What does 'stale file handle' in Linux mean?
Say I have a terminal open, and through that terminal I have cd 'ed to some directory. Through another terminal, I delete that directory and restore it back from an identical backup. When I try to vim a file from the first terminal, in the same directory, why do I get an error about a stale file ...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...russels")
In [32]: %timeit t.tz_localize(None)
1000 loops, best of 3: 233 µs per loop
In [33]: %timeit pd.DatetimeIndex([i.replace(tzinfo=None) for i in t])
10 loops, best of 3: 99.7 ms per loop
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What is bootstrapping?
I keep seeing "bootstrapping" mentioned in discussions of application development. It seems both widespread and important, but I've yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don't, tho...
PHP - How to check if a string contains a specific text [duplicate]
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@PadronizaçãoSA The ! operator will affect the falsiness of the return value from strpos which means === won't work the way it's intended.
– Dai
Jun 27 '18 at 15:04
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MySQL Orderby a number, Nulls last
...M table ORDER BY ISNULL(field) ASC; (MySQL 5.5)
– Marçal Juan
Sep 7 '12 at 11:10
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get just the integer from wc in bash
...< I get an error. parse error near '\n'
– Nuno Gonçalves
Sep 29 '19 at 20:32
add a commen...
How to validate an e-mail address in swift?
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Ah, Finally.. :D
– Ümañg ßürmån
Feb 26 at 19:01
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Fast way of counting non-zero bits in positive integer
... However, numberOfSetBits processes my 864×64 numpy.ndarray in 841 µs. With bitCountStr I have to loop explicitly, and it takes 40.7 ms, or almost 50 times longer.
– gerrit
Nov 24 '15 at 18:32
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