大约有 30,000 项符合查询结果（耗时：0.0538秒） [XML]
Why is pow(a, d, n) so much faster than a**d % n?
...ized, but in x ** y % n, x could be an object that implements __pow__ and, based on a random number, returns one of several different objects implementing __mod__ in ways that also depend on random numbers, etc.
– BrenBarn
Jan 3 '13 at 19:12
...
PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI
...
@Dominic108 I revised my answer based on your suggestions, tidied things up a bit, and added an Order of Operation section. Let me know what you think. Thanks!
– Beejor
Dec 17 '15 at 2:36
...
Checking images for similarity with OpenCV
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Dashed line border around UIView
... working in Swift, this class extension on UIView makes it easy. This was based on sunshineDev's answer.
extension UIView {
func addDashedBorder() {
let color = UIColor.red.cgColor
let shapeLayer:CAShapeLayer = CAShapeLayer()
let frameSize = self.frame.size
let shapeRect = CGRec...
Guava equivalent for IOUtils.toString(InputStream)
...
Based on the accepted answer, here is a utility method that mocks the behavior of IOUtils.toString() (and an overloaded version with a charset, as well). This version should be safe, right?
public static String toString(fina...
When should I use the Visitor Design Pattern? [closed]
... a new feature, they would need to add that method to every feature in the base class. This is particularly hard when the base classes appear in a separate library, or are produced by a separate team.
(I have heard it argued that the Visitor pattern is in conflict with good OO practices, because it...
javascript: Clear all timeouts?
... that Opera, Safari, Chrome and IE > 8 starts timeout ids from 1, Gecko-based browsers from 2 and IE <= 8 from some random number that is magically saved across tab refresh. You can discover it yourself.
All that meens that in IE <=8 the while (lastTimeoutId--) cycle may run over 8digits t...
How can I prevent SQL injection in PHP?
...d queries. These are SQL statements that are sent to and parsed by the database server separately from any parameters. This way it is impossible for an attacker to inject malicious SQL.
You basically have two options to achieve this:
Using PDO (for any supported database driver):
$stmt = $pdo-&g...
C# Thread safe fast(est) counter
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Get Android API level of phone currently running my application [duplicate]
...uild.VERSION_CODES Human Version Name
1 BASE Android 1.0 (no codename)
2 BASE_1_1 Android 1.1 Petit Four
3 CUPCAKE Android 1.5 Cupcake
4 DONUT ...