大约有 46,000 项符合查询结果（耗时：0.0553秒） [XML]
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
...and with $! you get the PID of the last command launched in background.
Modify the loop to store the PID of each spawned sub-process into an array, and then loop again waiting on each PID.
# run processes and store pids in array
for i in $n_procs; do
./procs[${i}] &
pids[${i}]=$!
done
...
What's the scope of the “using” declaration in C++?
...
But if you put the using declaration inside a namespace it's limited to the scope of that namespace, so is generally OK (with the usual caveats on your particular needs and style).
– Zero
De...
How can I delete all unversioned/ignored files/folders in my working copy?
If I have a working copy of a Subversion repository, is there a way to delete all unversioned or ignored files in that working copy with a single command or tool? Essentially, I'm looking for the SVN analogue to git clean .
...
How to check if a word is an English word with Python?
I want to check in a Python program if a word is in the English dictionary.
9 Answers
...
Android: I am unable to have ViewPager WRAP_CONTENT
...measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
int h = child.getMeasuredHeight();
if(h > height) height = h;
}
if (height != 0) {
heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
}
super.on...
How to filter specific apps for ACTION_SEND intent (and set a different text for each app)
How can you filter out specific apps when using the ACTION_SEND intent? This question has been asked in various ways, but I haven't been able to gather a solution based on the answers given. Hopefully someone can help. I would like to provide the ability to share within an app. Following Android ...
Iterate through a HashMap [duplicate]
... + " = " + pair.getValue());
it.remove(); // avoids a ConcurrentModificationException
}
}
Read more about Map.
share
|
improve this answer
|
follow
...
How to organize large R programs?
...swer is to use packages -- see the Writing R Extensions manual as well as different tutorials on the web.
It gives you
a quasi-automatic way to organize your code by topic
strongly encourages you to write a help file, making you think about the interface
a lot of sanity checks via R CMD check
a ...
Android: When should I use a Handler() and when should I use a Thread?
...works fine.
Creating a Handler and running it works as well.
What's the difference? When should I use each one?
What are the advantages / reasons to use a Handler and not a Thread ?
...
How to get current location in Android [duplicate]
...r);
}
And finally make sure that you have added the permission on the Manifest,
For using only network based location use this one
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
For GPS based location, this one
<uses-permission android:name="android.perm...