大约有 47,000 项符合查询结果(耗时:0.0630秒) [XML]

https://stackoverflow.com/ques... 

When is assembly faster than C?

... @Praxeolitic: FP add is commutative (a+b == b+a), but not associative (reordering of operations, so rounding of intermediates is different). re: this code: I don't think uncommented x87 and a loop instruction are a very awesome demonstration of fast asm. loop is apparently not actually a bottlen...
https://stackoverflow.com/ques... 

Sound alarm when code finishes

...os.system('play -nq -t alsa synth {} sine {}'.format(duration, freq)) In order to use this example, you must install sox. On Debian / Ubuntu / Linux Mint, run this in your terminal: sudo apt install sox On Mac, run this in your terminal (using macports): sudo port install sox Speech on Mac ...
https://stackoverflow.com/ques... 

What is a serialVersionUID and why should I use it?

...I wouldn't expect it to say you need one - but it may be suggesting one in order to help you serialize exceptions correctly. If you're not going to serialize them, you really don't need the constant. – Jon Skeet Jun 15 '14 at 18:43 ...
https://stackoverflow.com/ques... 

Left Align Cells in UICollectionView

...CGFloat maxY = -1.0f; //this loop assumes attributes are in IndexPath order for (UICollectionViewLayoutAttributes *attribute in attributes) { if (attribute.frame.origin.y >= maxY) { leftMargin = self.sectionInset.left; } attribute.frame = CGRectMake(l...
https://stackoverflow.com/ques... 

How to model type-safe enum types?

...s of limited utility in practice (you might as well use case objects). In order to get something most closely resembling a Java Enum (i.e. with sensible toString and valueOf methods -- perhaps you are persisting the enum values to a database) you need to modify it a bit. If you had used skaffman's...
https://stackoverflow.com/ques... 

Saving interactive Matplotlib figures

... On my py3.5 on MacOS 10.11, the order of fig.show() doesn't appear to matter - maybe that bug was fixed. I can pickle before/after show() without issue. – Demis Feb 1 '16 at 19:42 ...
https://stackoverflow.com/ques... 

How can I convert ereg expressions to preg in PHP?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
https://stackoverflow.com/ques... 

iOS Tests/Specs TDD/BDD and Integration & Acceptance Testing

...tput goes into the build window where you have to unfold the build step in order to read it. We wanted easy to read test reporting, both on the command line and in Xcode. OCUnit results appear nicely in the build window in Xcode, but building from the command line (or as part of a CI process) res...
https://stackoverflow.com/ques... 

How to “log in” to a website using Python's Requests module?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
https://stackoverflow.com/ques... 

Anaconda vs. EPD Enthought vs. manual installation of Python [closed]

... old and we were unable to update becasue of the weird proxy situation. In order to add some packages (such as recent version of xlrd/xlwt), I compiled from source. To update SciPy and NumPy, I used the precompiled installer from http://www.lfd.uci.edu/~gohlke/pythonlibs/, but it would sometimes scr...