大约有 48,000 项符合查询结果（耗时：0.0492秒） [XML]
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...
This is a string intended for human eyes and without a strict definition of valid values, relying on this is not a good idea - write code that checks actual functionality instead.
– Thorbjørn Ravn Andersen
...
What is the difference between “int” and “uint” / “long” and “ulong”?
...ainable code. Sure, it's easy to use type 'int' and use it without all the extra darn typing. It's a lot of work to figure out what they really meant, and a bit mind-numbing.
It's crappy coding when you mix int.
use int and uint when you just want a fast integer and don't care about the range (other...
What is the best way to compute trending topics or tags?
...
This problem calls for a z-score or standard score, which will take into account the historical average, as other people have mention, but also the standard deviation of this historical data, making it more robust than just using the avera...
Git Gui: Perpetually getting “This repository currently has approximately 320 loose objects.”
... command line fixed it for me. May be git gui runs something like git gc --extra-unaggressive :)
– sashoalm
Jan 30 '14 at 13:57
38
...
How to change the name of a Django app?
...e changed the name of an app in Django by renaming its folder, imports and all its references (templates/indexes). But now I get this error when I try to run python manage.py runserver
...
What is the difference between Numpy's array() and asarray() functions?
...l be returned uncopied iff it's compatible with the specified requirements string.
copy: The input is always copied.
fromiter: The input is treated as an iterable (so, e.g., you can construct an array from an iterator's elements, instead of an object array with the iterator); always copied.
There ...
What is an alternative to execfile in Python 3?
It seems they canceled in Python 3 all the easy way to quickly load a script by removing execfile()
12 Answers
...
How to remove the arrow from a select element in Firefox
...-appearance, text-indent and text-overflow. It is pure CSS and requires no extra markup.
select {
-moz-appearance: none;
text-indent: 0.01px;
text-overflow: '';
}
Tested on Windows 8, Ubuntu and Mac, latest versions of Firefox.
Live example: http://jsfiddle.net/joaocunha/RUEbp/1/
Mo...
How do I profile memory usage in Python?
...
This one has been answered already here: Python memory profiler
Basically you do something like that (cited from Guppy-PE):
>>> from guppy import hpy; h=hpy()
>>> h.heap()
Partition of a set of 48477 objects. Total size = 3265516 bytes.
Index Count % Size % Cumulat...
Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
...go-rwx DIR (nobody other than owner can access content)
chmod go+x DIR (to allow "users" including _www to "enter" the dir)
sudo chgrp -R _www ~/my/web/root (all web content is now group _www)
chmod -R go-rwx ~/my/web/root (nobody other than owner can access web content)
chmod -R g+rx ~/my/web/root...