大约有 43,000 项符合查询结果（耗时：0.0663秒） [XML]
Replace tabs with spaces in vim
...d like to convert tab to spaces in gVim. I added the following line to my _vimrc :
11 Answers
...
Make a negative number positive
...
Note the edge cases, e.g. Math.abs(Integer.MIN_VALUE) = Integer.MIN_VALUE.
– Zach Scrivena
Jan 30 '09 at 0:24
...
Why is UICollectionViewCell's outlet nil?
...I don't use it, it gives me error Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:]
– Shaheera
Jun 30 '16 at 11:04
...
Detect HTTP or HTTPS then force HTTPS in JavaScript
... answered Jul 7 '12 at 12:20
b1_b1_
1,9522323 silver badges3636 bronze badges
...
How can I represent an infinite number in Python?
...t infinity is defined in the norm IEEE 754-1985 (en.wikipedia.org/wiki/IEEE_754-1985), which Any modern language will rely on. Another point is that, according to this norm, infinity must (obviously) be a floating-point number. This might explain why Python have chosen this akward syntax.
...
Easy way to print Perl array? (with a little formatting)
...ng 'local' to avoid having ripple effects throughout the script:
use 5.012_002;
use strict;
use warnings;
my @array = qw/ 1 2 3 4 5 /;
{
local $" = ', ';
print "@array\n"; # Interpolation.
}
OR with $,:
use feature q(say);
use strict;
use warnings;
my @array = qw/ 1 2 3 4 5 /;
{
l...
Extracting numbers from vectors of strings
...meric(gsub("([0-9]+).*$", "\\1", years))
or
# pattern is to just remove _years_old
as.numeric(gsub(" years old", "", years))
or
# split by space, get the element in first index
as.numeric(sapply(strsplit(years, " "), "[[", 1))
...
How to draw border around a UILabel?
...ion adversely affects performance during animation.
override func draw(_ rect: CGRect) {
// Drawing code
}
*/
@IBInspectable var borderColor: UIColor = UIColor.white {
didSet {
layer.borderColor = borderColor.cgColor
}
}
@IBInspectable va...
Why are regular expressions so controversial? [closed]
...(?&mailbox) | (?&group))
(?<mailbox> (?&name_addr) | (?&addr_spec))
(?<name_addr> (?&display_name)? (?&angle_addr))
(?<angle_addr> (?&CFWS)? < (?&addr_spec) > (?&CFWS)?)
(?<group> (?&am...
In bash, how does one clear the current input?
...
Found a short reference at http://www.ice2o.com/bash_quick_ref.html while searching.
ctrl + e (if not at the end of the line) plus ctrl + u will do it.
share
|
improve this a...