大约有 37,000 项符合查询结果(耗时:0.0353秒) [XML]

https://stackoverflow.com/ques... 

How do I get my Python program to sleep for 50 milliseconds?

...oth as long as you have a Python implementation that is up to spec on your OS, the above is OS independent. – Chris Nov 21 '18 at 14:57 add a comment  |  ...
https://stackoverflow.com/ques... 

Proper use of beginBackgroundTaskWithExpirationHandler

... The accepted answer is very helpful and should be fine in most cases, however two things bothered me about it: As a number of people have noted, storing the task identifier as a property means that it can be overwritten if the method is called multiple times, leading to a task that...
https://stackoverflow.com/ques... 

Add up a column of numbers at the Unix shell

...lable on some systems! awk, on the other hand is (I believe) required for POSIX compliance. – vktec Jan 1 '17 at 20:23  |  show 4 more comment...
https://stackoverflow.com/ques... 

How to use find command to find all files with extensions from list?

... answered Apr 12 '10 at 11:16 JoseKJoseK 29.9k1313 gold badges9595 silver badges124124 bronze badges ...
https://stackoverflow.com/ques... 

Generating file to download with Django

Is it possible to make a zip archive and offer it to download, but still not save a file to the hard drive? 8 Answers ...
https://stackoverflow.com/ques... 

Detect Android phone via Javascript / jQuery

...sh.name'; } PHP: $ua = strtolower($_SERVER['HTTP_USER_AGENT']); if(stripos($ua,'android') !== false) { // && stripos($ua,'mobile') !== false) { header('Location: http://android.davidwalsh.name'); exit(); } Edit : As pointed out in some comments, this will work in 99% of the cases,...
https://stackoverflow.com/ques... 

How to use `subprocess` command with pipes

...aturely; ps may hang indefinitely if it produces enough output to fill its OS pipe buffer (because you haven't called ps.stdout.close() in the parent). Swap the starting order, to avoid it – jfs Mar 22 '16 at 17:23 ...
https://stackoverflow.com/ques... 

Find and replace with sed in directory and sub directories

... Actually adding -e does not work on Mac OS. touch a b c d e followed by the command above produces a directory listing like this: a a-e b b-e c c-e d d-e e e-e. – paulmelnikow Mar 10 '14 at 5:22 ...
https://stackoverflow.com/ques... 

Different font size of strings in the same TextView

...e length of the string. IndexOutOfBoundsException: indicating wrong index position for start and end of span. in the above Hello length is 5 so i applied span from index 0 to 5 – Raghunandan May 2 '13 at 11:12 ...
https://stackoverflow.com/ques... 

Some questions about Automatic Reference Counting in iOS5 SDK

I'm currently developing an app for iPad. The development started for iOS 4.2 and is now continuing (and I think will be completed) for iOS 4.3. I just read about ARC in iOS 5, and basically I understood that we will never need to release and retain objects anymore. My questions are: ...