大约有 8,100 项符合查询结果（耗时：0.0182秒） [XML]
Can Android do peer-to-peer ad-hoc networking?
Is it possible to set up Android in ad-hoc peer-to-peer wifi mode? For example, I would like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited.
...
How to query as GROUP BY in django?
... you can use the aggregation features of the ORM:
from django.db.models import Count
Members.objects.values('designation').annotate(dcount=Count('designation'))
This results in a query similar to
SELECT designation, COUNT(designation) AS dcount
FROM members GROUP BY designation
and the output ...
linq query to return distinct field values from a list of objects
Assume there is list with 100 elements of obj, but only 10 unique typeIDs.
Is it possible to do write a LINQ query return the 10 unique ints from the list of objs?
...
Keyboard Interrupts with python's multiprocessing Pool
How can I handle KeyboardInterrupt events with python's multiprocessing Pools? Here is a simple example:
10 Answers
...
Ruby: Can I write multi-line string with no concatenation?
...
There are pieces to this answer that helped me get what I needed (easy multi-line concatenation WITHOUT extra whitespace), but since none of the actual answers had it, I'm compiling them here:
str = 'this is a multi-line string'\
' ...
How can I use “sizeof” in a preprocessor macro?
Is there any way to use a sizeof in a preprocessor macro?
13 Answers
13
...
How to duplicate a whole line in Vim?
How do I duplicate a whole line in Vim in a similar way to Ctrl + D in IntelliJ IDEA/ Resharper or Ctrl + Alt + ↑ / ↓ in Eclipse ?
...
SublimeText encloses lines in white rectangles
...
share
|
improve this answer
|
follow
|
edited Dec 1 '16 at 21:58
Christopher Rapcewicz
...
Which method performs better: .Any() vs .Count() > 0?
in the System.Linq namespace, we can now extend our IEnumerable's to have the Any() and Count() extension methods .
...
How do I tar a directory of files and folders without including the directory itself?
I typically do:
17 Answers
17
...