大约有 40,200 项符合查询结果（耗时：0.0596秒） [XML]
Java integer to byte array
I got an integer: 1695609641
13 Answers
13
...
How to check if an element is in an array
...
Swift 2, 3, 4, 5:
let elements = [1, 2, 3, 4, 5]
if elements.contains(5) {
print("yes")
}
contains() is a protocol extension method of SequenceType (for sequences of Equatable elements) and not a global method as in
earlier releas...
Convert decimal to hexadecimal in UNIX shell script
...
echo "obase=16; 34" | bc
If you want to filter a whole file of integers, one per line:
( echo "obase=16" ; cat file_of_integers ) | bc
share
|
...
Ruby function to remove all white spaces?
...
54
\s+ means 1 or more whitespace characters (space, newline, tab). The // surrounding show that it's a regular expression.
...
Make the current Git branch a master branch
...
14 Answers
14
Active
...
Easiest way to check for an index or a key in an array?
...
answered Nov 4 '12 at 18:25
doubleDowndoubleDown
6,70711 gold badge2727 silver badges4444 bronze badges
...
How to run a python script from IDLE interactive shell?
...
145
Python3:
exec(open('helloworld.py').read())
If your file not in the same dir:
exec(open('./...
A Regex that will never be matched by anything
...nd only then not find the "a" and return a negative match. I see it take ~480ms to scan a ~275k line file. The converse "a^" takes about the same time, even if it might seem more efficient. On the other hand, a negative lookahead need not scan anything: "(?!x)x" (anything not followed by an x als...
Codesign error: Certificate identity appearing twice
CodeSign error: Certificate identity 'iPhone Developer: XXXX (12345678)' appears more than once in the keychain. The codesign tool requires there only be one.
...
How to construct a timedelta object from a simple string
...as a string. The user must enter something like "32m" or "2h32m", or even "4:13" or "5hr34m56s"... Is there a library or something that has this sort of thing already implemented?
...