大约有 43,300 项符合查询结果（耗时：0.0448秒） [XML]
What does enumerate() mean?
...
516
The enumerate() function adds a counter to an iterable.
So for each element in cursor, a tuple...
Is \d not supported by grep's basic expressions?
...
197
grep's default mode is (iirc) POSIX regex, and \d is pcre. You can either pass -P to gnu grep,...
How to map atan2() to degrees 0-360
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise.
15 Answers
...
Best way to handle list.index(might-not-exist) in python?
...
12 Answers
12
Active
...
How to generate random SHA1 hash to use as ID in node.js?
I am using this line to generate a sha1 id for node.js:
4 Answers
4
...
How can I improve my paw detection?
...ly, you have 5 steps:
def find_paws(data, smooth_radius=5, threshold=0.0001):
data = sp.ndimage.uniform_filter(data, smooth_radius)
thresh = data > threshold
filled = sp.ndimage.morphology.binary_fill_holes(thresh)
coded_paws, num_paws = sp.ndimage.label(filled)
data_slices =...
Simple Log to File example for django 1.3+
...
184
I truly love this so much here is your working example! Seriously this is awesome!
Start by p...
PostgreSQL, checking date relative to “today”
...
174
select * from mytable where mydate > now() - interval '1 year';
If you only care about th...
Remove redundant paths from $PATH variable
...
11 Answers
11
Active
...
Locate the nginx.conf file my nginx is actually using
...
answered Nov 11 '13 at 15:38
Daniel LiDaniel Li
13.7k66 gold badges3939 silver badges5858 bronze badges
...