大约有 5,570 项符合查询结果（耗时：0.0256秒） [XML]
How to write the Fibonacci Sequence?
...owError when n is slightly above 600. Other approaches can handle an n of 1000 or more without blowing up or losing precision.
– cdlane
Sep 4 '17 at 20:54
...
memory_get_peak_usage() with “real usage”
...$percentage = (($memoryUsed + $stat['HIGHEST_DIFF']) / $memoryAvailable) * 100;
// var_dump($percentage, $memoryDiff);
// Stop your scipt
if ($percentage > $peekPoint) {
print(sprintf("Stoped at: %0.2f", $percentage) . "%\n");
$stat['AVERAGE'] = array_sum($stat['AVE...
Sending files using POST with HttpURLConnection
...nn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000);
conn.setConnectTimeout(15000);
conn.setRequestMethod("POST");
conn.setUseCaches(false);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestProperty("Connecti...
How do I modify fields inside the new PostgreSQL JSON datatype?
...the end of the array:
SELECT jsonb_set('{"a":[null,{"b":[1,2]}]}', '{a,1,b,1000}', jsonb '3', true)
-- will yield jsonb '{"a":[null,{"b":[1,2,3]}]}'
For inserting into JSON array (while preserving all of the original values), the jsonb_insert() function can be used (in 9.6+; this function only, in ...
Android: How can I pass parameters to AsyncTask's onPreExecute()?
...tring input1 = "test";
boolean input2 = true;
int input3 = 100;
long input4 = 100000000;
new MyTask(input3, input4).execute(input1, input2);
}
private class MyTaskResult {
String text1;
String text2;
}
private class MyTask extends As...
How to paste yanked text into the Vim command line
...
Isn't there a badge “100/1 length ratio between answer and question?” :)
– Benoit
Oct 22 '10 at 13:35
8
...
How is “=default” different from “{}” for default constructor and destructor?
...concerned, you the rights of a trivial type" I'd fix it but I'm not quuite 100% sure what was intended.
– jcoder
Nov 28 '12 at 8:50
2
...
How to prevent Browser cache for php site
... can process 754 MiB/s without blinking. (openssl speed md5) Combined, a 100KB CSS file would have a combined additional overhead of… 129µs (microseconds, 0.1295ms) + 8ns (which does not meaningfully contribute to the final number) = 129µs.
– amcgregor
Ju...
How to filter SQL results in a has-many-through relation
....club(id)
);
INSERT INTO tmp.student(id)
SELECT generate_series(1,1000)
;
INSERT INTO tmp.club(id)
SELECT generate_series(1,100)
;
INSERT INTO tmp.student_club(student_id,club_id)
SELECT st.id , cl.id
FROM tmp.student st, tmp.club cl
;
DELETE FROM tmp.student_clu...
What does the CSS rule “clear: both” do?
...rder-box;
}
header, footer {
border: 5px solid #000;
height: 100px;
}
aside {
float: left;
width: 30%;
border: 5px solid #000;
height: 300px;
}
section {
float: left;
width: 70%;
border: 5px solid #000;
height: 300px;
}
.clear {
...