大约有 35,433 项符合查询结果（耗时：0.0315秒） [XML]
How to count the number of true elements in a NumPy bool array
...xample:
>>> import numpy as np
>>> boolarr = np.array([[0, 0, 1], [1, 0, 1], [1, 0, 1]], dtype=np.bool)
>>> boolarr
array([[False, False, True],
[ True, False, True],
[ True, False, True]], dtype=bool)
>>> np.sum(boolarr)
5
Of course, that is ...
Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
...
+100
What I did was creating my own Window and Style. Because I like to have control over everything and I didn't want some external libra...
Count work days between two dates
...
306
For workdays, Monday to Friday, you can do it with a single SELECT, like this:
DECLARE @StartD...
How to remove convexity defects in a Sudoku square?
...Y = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask];
lX = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {0, 2}], {0.02, 0.05}], mask];
I use connected component analysis again to extract the grid lines from these images. The g...
Count occurrences of a char in plain text file
...
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edited Oct 21 '09 at 21:45
answered Oct 21 '09 at 21:37
...
Validate phone number with JavaScript
...alidates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
26 Answers
...
Make xargs execute the command once for each line of input
...
405
The following will only work if you do not have spaces in your input:
xargs -L 1
xargs --max-l...
How to open, read, and write from serial port in C?
...ity)
{
struct termios tty;
if (tcgetattr (fd, &tty) != 0)
{
error_message ("error %d from tcgetattr", errno);
return -1;
}
cfsetospeed (&tty, speed);
cfsetispeed (&tty, speed);
tty.c_cflag = (tty.c_...
Difference between exit(0) and exit(1) in Python
What's the difference between exit(0) and exit(1) in Python?
5 Answers
5
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
...environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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