大约有 34,000 项符合查询结果（耗时：0.0246秒） [XML]
Converting a list to a set changes element order
... list, you can do this with a list comprehension:
>>> a = [1, 2, 20, 6, 210]
>>> b = set([6, 20, 1])
>>> [x for x in a if x not in b]
[2, 210]
If you need a data structure that supports both fast membership tests and preservation of insertion order, you can use the keys...
Get selected option text with JavaScript
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j08691
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answered Feb 20 '13 at 9:42
999k999k
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What platforms have something other than 8-bit char?
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answered Jan 20 '10 at 1:22
Steve JessopSteve Jessop
251k3131 gold badges420420 silver badges659659 bronze badges
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Assign one struct to another in C
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answered Feb 20 '10 at 13:41
fabrizioMfabrizioM
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What is the difference between decodeURIComponent and decodeURI?
...rn the same as you originally put in — see eg. decodeURI(encodeURI('%20 '));.
Where encodeURI should really be named fixBrokenURI(), decodeURI() could equally be called potentiallyBreakMyPreviouslyWorkingURI(). I can think of no valid use for it anywhere; avoid.
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UIView frame, bounds and center
...specific subview. For example:
// view1 will be positioned at x = 30, y = 20 starting the top left corner of [self view]
// [self view] could be the view managed by a UIViewController
UIView* view1 = [[UIView alloc] initWithFrame:CGRectMake(30.0f, 20.0f, 400.0f, 400.0f)];
view1.backgroundColor ...
Remove all special characters from a string [duplicate]
... well?
– Hard-Boiled Wonderland
Oct 20 '14 at 19:56
1
thanks it solved my problem,+1 for the same...
Find where python is installed (if it isn't default dir)
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answered Jul 20 '11 at 19:21
dhgdhg
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What's the difference between URI.escape and CGI.escape?
...s/4967608/… where someone mentioned that cgi escape uses '+' instead of %20 for spaces, and that it's against the 'spec'...
– Louis Sayers
Jul 19 '12 at 11:24
18
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Count the number occurrences of a character in a string
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jul 20 '09 at 20:04
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