大约有 47,000 项符合查询结果（耗时：0.0561秒） [XML]
What's the difference between Perl's backticks, system, and exec?
...ere you want to fetch STDOUT, STDERR or the return code, you can use well known standard modules like IPC::Open2 and IPC::Open3.
Example:
use IPC::Open2;
my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'some', 'cmd', 'and', 'args');
waitpid( $pid, 0 );
my $child_exit_status = $? >> 8;
Finally, IPC:...
UIButton won't go to Aspect Fit in iPhone
...
Yeah tried that, but now can't get the button to refit to the image
– marty
Aug 11 '10 at 21:34
...
Javascript trick for 'paste as plain text` in execCommand
...
Seems now that the problem I had was due to calling your script from a file which was itself loaded by a script. I can't paste into neither textarea nor input in your fiddle in FF 47.0.1 (can do it in chrome), but can paste into di...
Could not execute editor
...et the full path to vi (e.g. /usr/bin/vi) rather than just the executable. Now everything works. I have to admit that I don't get it since vi is perfectly executable on its own (my $EDITOR env variable is also set to vi), but it's working and my technical karma hasn't been so great lately so maybe I...
UIRefreshControl on UICollectionView only works if the collection fills the height of the container
...upported. UIRefreshControl can only be used with UITableViewController and now it is strictly enforced.
– Luke Van In
May 8 '14 at 21:27
3
...
Multiple glibc libraries on a single host
...of glibc on the same system (we do that every day).
However, you need to know that glibc consists of many pieces (200+ shared libraries) which all must match. One of the pieces is ld-linux.so.2, and it must match libc.so.6, or you'll see the errors you are seeing.
The absolute path to ld-linux.so....
Is there a good reason to use upper case for SQL keywords? [closed]
...itors didn't do code colouring.
I used to prefer all upper case, but I'm now leaning towards all lower.
share
|
improve this answer
|
follow
|
...
What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java
...times. If the <script> tags have the defer attribute set you can't know in which order they'll be interpreted, so as described above this fixes that problem too.
share
|
improve this answer
...
Is there a way to auto expand objects in Chrome Dev Tools?
...);
} else {
console.log(item);
}
}
})();
Now running:
expandedLog({
"glossary": {
"title": "example glossary",
"GlossDiv": {
"title": "S",
"GlossList": {
"GlossEntry": {
"ID": "SGML",
...
What is the difference between the HashMap and Map objects in Java?
...eMap instead of HashMap in Foo. I update Foo, changing HashMap to TreeMap. Now, SpecialFoo doesn't compile anymore, because I've broken the contract: Foo used to say it provided HashMaps, but now it's providing TreeMaps instead. So we have to fix SpecialFoo now (and this kind of thing can ripple thr...