大约有 40,700 项符合查询结果（耗时：0.0484秒） [XML]
Why should I use document based database instead of relational database?
...typical kinds of applications or domains where the document based database is more suitable than the relational database?
7...
Use PHP composer to clone git repo
...to use composer to automatically clone a git repository from github that isn't in packagist but it's not working and I can't figure out what am I doing wrong.
...
How can I record a Video in my Android App.?
...
Here is a simple video recording example using the MediaRecorder:
public class VideoCapture extends Activity implements OnClickListener, SurfaceHolder.Callback {
MediaRecorder recorder;
SurfaceHolder holder;
boolean r...
What does |= (ior) do in Python?
...ts: a union operation
dicts: an update operation
counters: a union (of multisets) operation
numbers: a bitwise OR, binary operation
In most cases, it is related to the | operator. See examples below.
Sets
For example, the union of two assigned sets s1 and s2 share the following equivalent expressi...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
... 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing things up...
This is a known bug in the support package.
If you need to save the instance and add something to your outState Bundle you can use the following:
@Override
protected void onSaveInstanceState(Bu...
how does multiplication differ for NumPy Matrix vs Array classes?
...rix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable.
8 Answers
...
Trust Store vs Key Store - creating with keytool
...vate/public keys and the trust store only public keys (and represents the list of trusted parties you intend to communicate with). Well, that's my first assumption, so if that's not correct, I probably haven't started very well...
...
Rounding up to next power of 2
...n that returns the nearest next power of 2 number. For example if my input is 789, the output should be 1024. Is there any way of achieving this without using any loops but just using some bitwise operators?
...
ASP.NET MVC: What is the purpose of @section? [closed]
For an ASP.NET MVC application, I saw this blog article .
The author ScottGu adds @section to the Index.cshtml.
4 Answe...
MySQL select 10 random rows from 600K rows fast
...jan.kneschke.de/projects/mysql/order-by-rand/
For most general case, here is how you do it:
SELECT name
FROM random AS r1 JOIN
(SELECT CEIL(RAND() *
(SELECT MAX(id)
FROM random)) AS id)
AS r2
WHERE r1.id >= r2.id
ORDER BY r1.id ASC...