大约有 47,000 项符合查询结果（耗时：0.0543秒） [XML]
Forward an invocation of a variadic function in C
...t.h>
#include <alloca.h>
#include <inttypes.h>
#include <string.h>
/* This macros allow wrapping variadic functions.
* Currently we don't care about floating point arguments and
* we assume that the standard calling conventions are used.
*
* The wrapper function has to star...
Extracting numbers from vectors of strings
I have string like this:
11 Answers
11
...
How to know/change current directory in Python shell?
... ^ SyntaxError: EOL while scanning string literal
– AAI
Sep 4 '16 at 0:31
1
...
How to get a substring between two strings in PHP?
I need a function that returns the substring between two words (or two characters).
I'm wondering whether there is a php function that achieves that. I do not want to think about regex (well, I could do one but really don't think it's the best way to go). Thinking of strpos and substr functions....
What is the difference between MediaPlayer and VideoView in Android
...e most appropriate app for playing the video, which is even easier to do:
String url = "rtsp://yourrtsplink.com/blah";
Uri uri = Uri.parse(url);
startActivity(new Intent(Intent.ACTION_VIEW, uri));
Video should be tested on a device, since emulator playback is poor, and you should also be aware th...
Permutations in JavaScript?
...
usedChars.pop();
}
return permArr
};
document.write(JSON.stringify(permute([5, 3, 7, 1])));
share
|
improve this answer
|
follow
|
...
How do Python's any and all functions work?
....0001, True, (False,)])
(True, True) # ^^^-- truthy non-empty string
>>> any([0, 0.0, False, (), '']), all([1, 0.0001, True, (False,), {}])
(False, False) # ^^-- falsey
If the iterables are empty, any returns False, and all ret...
How do you echo a 4-digit Unicode character in Bash?
...3 # Ceiling
local p=128 # Accum. bits
local s='' # Output string
(( c < 0x80 )) && { fast_chr "$c"; echo -n "$REPLY"; return; }
while (( c > o )); do
fast_chr $(( t = 0x80 | c & 0x3f ))
s="$REPLY$s"
(( c >>= 6, l++, p += o+1,...
Numeric for loop in Django templates
...
Generate a string of arbitrary length with 'rjust' {% for i in "x"|rjust:"100" %}
– Aaron
Mar 30 '16 at 19:48
29
...
Swift equivalent for MIN and MAX macros
... accept any parameter type that conforms to Comparable protocol, may it be String, Character or one of your custom class or struct.
Thereby, the following Playground sample code works perfectly:
class Route: Comparable, CustomStringConvertible {
let distance: Int
var description: String {...