大约有 37,000 项符合查询结果（耗时：0.0561秒） [XML]
Does “\d” in regex mean a digit?
...
[0-9] is not always equivalent to \d. In python3, [0-9] matches only 0123456789 characters, while \d matches [0-9] and other digit characters, for example Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩.
...
LINQ: Not Any vs All Don't
...
answered Jan 27 '12 at 0:52
Jon HannaJon Hanna
99.7k99 gold badges128128 silver badges227227 bronze badges
...
How do I adb pull ALL files of a folder present in SD Card
...e2.jpg
pull: /sdcard/Folder1/image3.jpg -> ./image3.jpg
3 files pulled. 0 files skipped.
Specific Files/Folders using find from BusyBox:
adb shell find "/sdcard/Folder1" -iname "*.jpg" | tr -d '\015' | while read line; do adb pull "$line"; done;
Here is an explanation:
adb shell find "/sdca...
What is the purpose of setting a key in data.table?
...e other vignettes that we plan to.
I've updated this answer again (Feb 2016) in light of the new on= feature that allows ad-hoc joins as well. See history for earlier (outdated) answers.
What exactly does setkey(DT, a, b) do?
It does two things:
reorders the rows of the data.table DT by the...
Clear file cache to repeat performance testing
... |
edited Nov 13 '12 at 5:05
Jeff Atwood
59.8k4545 gold badges146146 silver badges149149 bronze badges
a...
Check if $_POST exists
...
answered Aug 16 '10 at 20:29
ehmadehmad
2,28544 gold badges1717 silver badges1919 bronze badges
...
boolean in an if statement
...== entirely.
As an example of how confusing it can be:
var x;
x = 0;
console.log(x == true); // false, as expected
console.log(x == false); // true as expected
x = 1;
console.log(x == true); // true, as expected
console.log(x == false); // false as expected
x = 2;
console.l...
How to pause a YouTube player when hiding the iframe?
...ementById("popupVid");
var iframe = div.getElementsByTagName("iframe")[0].contentWindow;
div.style.display = state == 'hide' ? 'none' : '';
func = state == 'hide' ? 'pauseVideo' : 'playVideo';
iframe.postMessage('{"event":"command","func":"' + func + '","args":""}', '*');
}
</scri...
Bootstrap: Open Another Modal in Modal
...
20 Answers
20
Active
...
How do I generate random integers within a specific range in Java?
...
+150
In Java 1.7 or later, the standard way to do this is as follows:
import java.util.concurrent.ThreadLocalRandom;
// nextInt is normal...