大约有 6,000 项符合查询结果(耗时:0.0247秒) [XML]

https://stackoverflow.com/ques... 

How to properly seed random number generator

...s program should not be run on the Go playground but if you run it on your machine you get a rough estimate on what type of precision you can expect. I see increments of about 1000000 ns, so 1 ms increments. That's 20 bits of entropy that are not used. All the while the high bits are mostly constant...
https://stackoverflow.com/ques... 

navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't

...this, at least it works in all current browsers (on Windows, I don't own a Mac): if (navigator.geolocation) { var location_timeout = setTimeout("geolocFail()", 10000); navigator.geolocation.getCurrentPosition(function(position) { clearTimeout(location_timeout); var lat = p...
https://stackoverflow.com/ques... 

Can't find the PostgreSQL client library (libpq)

I'm trying to install PostgreSQL for Rails on Mac OS X 10.6. First I tried the MacPorts install but that didn't go well so I did the one-click DMG install. That seemed to work. ...
https://stackoverflow.com/ques... 

HTML5 Canvas vs. SVG vs. div

...user can drag elements in the diagram around. What I found was that on my Mac, for very large images, SVG is superior. I have a MacBook Pro 2013 13" Retina, and it runs the fiddle below quite well. The image is 6000x6000 pixels, and has 1000 objects. A similar construction in canvas was impossible...
https://stackoverflow.com/ques... 

How do you diff a directory for only files of a specific type?

... I wish I'd noticed John's comment earlier, but on macOs/bash I came to a similar solution to produce the exclusion file with several patterns to keep: find . -not -name "*.c" -and -not -name "*.h" -and -type f -print0 | xargs -0 basename | grep -E '.*\..+' | sed 's/\./\//g' ...
https://stackoverflow.com/ques... 

How to use if - else structure in a batch file?

...%==0 IF %C%==1 ( ::copying a directory c from d, /s: boş olanlar hariç, /e:boş olanlar dahil xcopy "%sourceCopyDirectory%" "%destinationCopyDirectory%" /s/e ) IF %F%==0 IF %C%==0 ( ::moving a directory xcopy /E "%sourceMoveDirectory%" "%destinationMoveDirectory%" rd /s /...
https://stackoverflow.com/ques... 

Error Dropping Database (Can't rmdir '.test\', errno: 17)

... I ran into this same issue on a new install of mysql 5.5 on a mac. I tried to drop the test schema and got an errno 17 message. errno 17 is the error returned by some posix os functions indicating that a file exists where it should not. In the data directory, I found a strange file "...
https://stackoverflow.com/ques... 

How to change XAMPP apache server port?

This is my Apache httpd.conf settings : 6 Answers 6 ...
https://stackoverflow.com/ques... 

Enter “&” symbol into a text Label in Windows Forms?

...ed Dec 1 '10 at 14:03 Øyvind BråthenØyvind Bråthen 52.2k2525 gold badges113113 silver badges138138 bronze badges ...
https://stackoverflow.com/ques... 

How do I turn off Oracle password expiration?

... Jul 21 '11 at 13:47 Pedro CarriçoPedro Carriço 3,60822 gold badges1313 silver badges1111 bronze badges ...