大约有 44,000 项符合查询结果（耗时：0.0223秒） [XML]
How to detect if a script is being sourced
...othing really related...
You could even check that $SECONDS is close to 0.000, but that's ensure only manualy sourced cases...
You even could try to check for what's parent is:
Place this into your testfile.ksh:
ps $PPID
Than:
./testfile.ksh
PID TTY STAT TIME COMMAND
32320 pts/4 S...
How to get RelativeLayout working with merge and include?
...ebView" android:layout_below="@id/header"
android:background="#77CC0000" android:layout_height="wrap_content"
android:layout_width="fill_parent" android:focusable="false" />
<LinearLayout android:layout_alignParentBottom="true"
android:layout_height="wrap_content" a...
Why does changing 0.1f to 0 slow down performance by 10x?
...p and resolve them using microcode.
If you print out the numbers after 10,000 iterations, you will see that they have converged to different values depending on whether 0 or 0.1 is used.
Here's the test code compiled on x64:
int main() {
double start = omp_get_wtime();
const float x[16]...
Rank items in an array using Python/NumPy, without sorting array twice
...slower for small arrays. On my machine they're equal when the array has 2,000 elements. At 20,000 elements, your method is about 25% faster.
– joshayers
Mar 12 '11 at 20:33
...
What is the difference between background and background-color
...ecificity down the road.
I thought that when a browser sees background: #000;, they really see background: #000 none no-repeat top center;. I don't have a link to a resource here, but I recall reading this somewhere.
Ref : https://github.com/mdo/css-perf#background-vs-background-color
...
How to print time in format: 2009‐08‐10 18:17:54.811
...struct timeval" used by gettimeofday() has microseconds which, divided by 1000 will yield the milliseconds. All those upvotes are really wrong and misleading! Unless someone reports under which architecture you get time details below the second with "struct tm".
– EnzoR
...
SQL variable to hold list of integers
...e TabA.ID in (select id from @listOfIDs)
or
declare @listOfIDs varchar(1000);
SET @listOfIDs = ',1,2,3,'; --in this solution need put coma on begin and end
select *
from TabA
where charindex(',' + CAST(TabA.ID as nvarchar(20)) + ',', @listOfIDs) > 0
...
How can I force WebKit to redraw/repaint to propagate style changes?
...
I'd upvote 1,000,000 times if I could. This is the only way I could get chrome to repaint a stupid div I was dragging around. By the way, you don't have to add a style element (at least I didn't) any element will work. I made a div and ga...
How to draw polygons on an HTML5 canvas?
...ze * Math.sin(i * 2 * Math.PI / numberOfSides));
}
ctx.strokeStyle = "#000000";
ctx.lineWidth = 1;
ctx.stroke();
#hexagon { border: thin dashed red; }
<canvas id="hexagon"></canvas>
share
|...
MySQL select 10 random rows from 600K rows fast
...andy. I just used this approach to pick 10 random rows from a table with 1,000,000+rows. Sure, I had to wait a bit; but I just wanted to get an idea, what typical rows in this table looks like...
– Sergey Orshanskiy
Dec 15 '13 at 22:20
...