大约有 47,000 项符合查询结果(耗时:0.0681秒) [XML]
count number of lines in terminal output
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answered Sep 17 '12 at 10:32
João SilvaJoão Silva
78.1k2525 gold badges143143 silver badges149149 bronze badges
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Quick search on filename
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Tom DevTom Dev
2,92011 gold badge1010 silver badges66 bronze badges
add a commen...
Efficient way to apply multiple filters to pandas DataFrame or Series
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250
Pandas (and numpy) allow for boolean indexing, which will be much more efficient:
In [11]: df.l...
How to merge two sorted arrays into a sorted array? [closed]
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Sumit Singh
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answered May 11 '11 at 1:19
Greg HewgillGreg Hewgill
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Responsive image map
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edited Dec 22 '16 at 10:47
answered Dec 21 '11 at 14:31
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Run two async tasks in parallel and collect results in .NET 4.5
... Console.WriteLine("Starting");
var task1 = Sleep(5000);
var task2 = Sleep(3000);
int[] result = await Task.WhenAll(task1, task2);
Console.WriteLine("Slept for a total of " + result.Sum() + " ms");
}
private async static...
Symbol for any number of any characters in regex?
...ace or any non-whitespace) as many times as possible down to and including 0.
[\s\S]*
This expression will match as few as possible, but as many as necessary for the rest of the expression.
[\s\S]*?
For example, in this regex [\s\S]*?B will match aB in aBaaaaB. But in this regex [\s\S]*B will...
Usage of sys.stdout.flush() method
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Haldean BrownHaldean Brown
10.4k44 gold badges3636 silver badges5555 bronze badges
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Javascript : natural sort of alphanumerical strings
...d in Chrome, Firefox, and IE11.
Here's an example. It returns 1, meaning 10 goes after 2:
'10'.localeCompare('2', undefined, {numeric: true, sensitivity: 'base'})
For performance when sorting large numbers of strings, the article says:
When comparing large numbers of strings, such as in sor...
Sleep Command in T-SQL?
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Look at the WAITFOR command.
E.g.
-- wait for 1 minute
WAITFOR DELAY '00:01'
-- wait for 1 second
WAITFOR DELAY '00:00:01'
This command allows you a high degree of precision but is only accurate within 10ms - 16ms on a typical machine as it relies on GetTickCount. So, for example, the call W...
