大约有 31,840 项符合查询结果（耗时：0.0463秒） [XML]
dd: How to calculate optimal blocksize? [closed]
...have said, there is no universally correct block size; what is optimal for one situation or one piece of hardware may be terribly inefficient for another. Also, depending on the health of the disks it may be preferable to use a different block size than what is "optimal".
One thing that is pretty r...
sendmail: how to configure sendmail on ubuntu? [closed]
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One thing that isn't clear is what replacements to make in AuthInfo:your.isp.net "U:root" "I:user" "P:password" Specifically, how do you replace U:root and I:user
– Tom Haws
Aug 29 '13 ...
How do I convert an interval into a number of hours with postgres?
...s interval, and extract result is integer, not float). So. Autocast/Floor done.
– Offenso
Aug 12 '15 at 13:24
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Why use a prime number in hashCode?
... inserted into will only be determined by the least significant entry (the one not multiplied at all). Similar entries will collide. Not good for a hash function.
31 is a large enough prime that the number of buckets is unlikely to be divisible by it (and in fact, modern java HashMap implementation...
Will Try / Finally (without the Catch) bubble the exception?
...an exception, of course, in which case that will effectively "replace" the one that was originally thrown.
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Android and setting alpha for (image) view alpha
... the former, but it's the counterpart to View.setAlpha(float). And as mentioned multiple times here already, android:alpha / View.setAlpha(float) are available as of API level 11 only.
– sschuberth
Nov 19 '13 at 20:33
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Why is there no String.Empty in Java?
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I'll still +1 you, but I feel dirty because you mentioned StringBuilder without talking about how nine times out of ten it's totally inappropriate to use StringBuilder rather than concatenation.
– Randolpho
Aug 10 '10 at 15:36
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Create two blank lines in Markdown
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Markdown treats multiple blank lines as one blank line, you could pre tag to contain blank lines. As markdown inside pre block is not parsed. I would prefer not to do this, instead add as many <br>'s as needed.
– vmx
Dec...
Recursive lambda functions in C++11
... Wondering why this isn't marked as 'answer', and that Python one is classified as 'Answer' ?!
– Ajay
Jan 26 '13 at 6:05
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namespaces for enum types - best practices
Often, one needs several enumerated types together. Sometimes, one has a name clash. Two solutions to this come to mind: use a namespace, or use 'larger' enum element names. Still, the namespace solution has two possible implementations: a dummy class with nested enum, or a full blown namespace.
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