大约有 45,272 项符合查询结果（耗时：0.0493秒） [XML]
C-like structures in Python
... a way to conveniently define a C-like structure in Python? I'm tired of writing stuff like:
25 Answers
...
When should I use Kruskal as opposed to Prim (and vice versa)?
I was wondering when one should use Prim's algorithm and when Kruskal's to find the minimum spanning tree? They both have easy logics, same worst cases, and only difference is implementation which might involve a bit different data structures. So what is the deciding factor?
...
Fling gesture detection on grid layout
...
Thanks to Code Shogun, whose code I adapted to my situation.
Let your activity implementOnClickListener as usual:
public class SelectFilterActivity extends Activity implements OnClickListener {
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int...
Create directories using make file
...
This would do it - assuming a Unix-like environment.
MKDIR_P = mkdir -p
.PHONY: directories
all: directories program
directories: ${OUT_DIR}
${OUT_DIR}:
${MKDIR_P} ${OUT_DIR}
This would have to be run in the top-level direct...
How to filter specific apps for ACTION_SEND intent (and set a different text for each app)
...answers given. Hopefully someone can help. I would like to provide the ability to share within an app. Following Android Dev Alexander Lucas' advice , I'd prefer to do it using intents and not using the Facebook/Twitter APIs.
...
How to use unicode characters in Windows command line?
...t in Team Foundation Server (TFS) that has a non-English character (š) in it. When trying to script a few build-related things we've stumbled upon a problem - we can't pass the š letter to the command-line tools. The command prompt or what not else messes it up, and the tf.exe utility can't fi...
What is the best way to compare floats for almost-equality in Python?
It's well known that comparing floats for equality is a little fiddly due to rounding and precision issues.
15 Answers
...
Disable ScrollView Programmatically?
I would like to enable ScrollView and disable it by a Button Click.
Disable means like if the ScrollView wasn't there.. and enable it returns the ScrollView.
...
Nullable type issue with ?: Conditional Operator
... has been asked a bunch of times already. The compiler is telling you that it doesn't know how convert null into a DateTime.
The solution is simple:
DateTime? foo;
foo = true ? (DateTime?)null : new DateTime(0);
Note that Nullable<DateTime> can be written DateTime? which will save you a bu...
What are file descriptors, explained in simple terms?
... like (...100, 101, 102....). This entry number is the file descriptor.
So it is just an integer number that uniquely represents an opened file in operating system.
If your process opens 10 files then your Process table will have 10 entries for file descriptors.
Similarly when you open a network so...