大约有 17,000 项符合查询结果（耗时：0.0257秒） [XML]
How to generate all permutations of a list?
...approach, taken from http://code.activestate.com/recipes/252178/:
def all_perms(elements):
if len(elements) <=1:
yield elements
else:
for perm in all_perms(elements[1:]):
for i in range(len(elements)):
# nb elements[0:1] works in both string a...
How to version control a record in a database
...ite queries against the FOO table. Happy days.
Then, I would create a FOO_HISTORY table. This has all the columns of the FOO table. The primary key is the same as FOO plus a RevisionNumber column. There is a foreign key from FOO_HISTORY to FOO. You might also add columns related to the revisio...
JSON to pandas DataFrame
...
I found a quick and easy solution to what I wanted using json_normalize() included in pandas 1.01.
from urllib2 import Request, urlopen
import json
import pandas as pd
path1 = '42.974049,-81.205203|42.974298,-81.195755'
request=Request('http://maps.googleapis.com/maps/api/elevati...
Sort a single String in Java
...es a code point order UTF-16 sort method: icu-project.org/docs/papers/utf16_code_point_order.html . I don't think Arrays.sort will destroy any supplementary characters due to the way the ranges are defined, but don't quote me.
– McDowell
Mar 3 '09 at 14:00
...
Remove padding from columns in Bootstrap 3
... I just create this @mixin nopadding{ padding:0!important; } in my _mixin.scss and then add @include nopadding; to the code above. :)
– jpcmf80
Mar 18 '15 at 14:49
...
Bash command to sum a column of numbers [duplicate]
...0s
user 2m26.230s
sys 0m0.660s
bash-2.03$ time perl -nle'
$s += $_; END { print $s }
' infile
1.249999925e+15
real 1m34.663s
user 1m33.710s
sys 0m0.650s
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JQuery: How to call RESIZE event only once it's FINISHED resizing?
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var lightbox_resize = false;
$(window).resize(function() {
console.log(true);
if (lightbox_resize)
clearTimeout(lightbox_resize);
lightbox_resize = setTimeout(function() {
console.log('resize');
}, 500);
}...
jQuery ID starts with
...r list items all started with 'li'. The solution was to start them with 'li_'
– Tim Dawson
Jun 28 at 12:37
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rsync error: failed to set times on “/foo/bar”: Operation not permitted
...d the trick, but I wish I didn't have to use it.
– d-_-b
Dec 14 '10 at 8:48
3
Thanks! It turns ou...
What's the best way to convert a number to a string in JavaScript? [closed]
...n) is good for using in a functional style, e.g. with underscore's combine _.compose(funcThatNeedsAStringParam, String).
– Rik Martins
Apr 17 '17 at 14:21
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