大约有 3,000 项符合查询结果（耗时：0.0073秒） [XML]
Git: list only “untracked” files (also, custom commands)
... It also lists modified files.
– Frank-Rene Schäfer
Nov 2 '18 at 12:22
1
nice, but I get i...
Getting indices of True values in a boolean list
...;> %timeit list(compress(xrange(len(t)), t))
1000 loops, best of 3: 696 µs per loop
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Max return value if empty query
...n an empty sequence results in an error.
– Raimund Krämer
Jan 29 '19 at 12:24
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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
...r, hopefully not, wall-clock?)
What is the precision of the clock? (s, ms, µs, or faster?)
After how much time does the clock wrap around? Or is there some mechanism to avoid this?
Is the clock monotonic, or will it change with changes in the system time (via NTP, time zone, daylight savings time, ...
Resolve absolute path from relative path and/or file name
.... I'm using this techinique now, widely.
– Paulo França Lacerda
Oct 8 '18 at 2:51
1
Why is it %~...
Safe characters for friendly url [closed]
... @Skip Head, does "characters" include Latin encoded characters like ç and õ?
– Mohamad
Jun 10 '11 at 19:34
6
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How do we determine the number of days for a given month in python [duplicate]
... edited Dec 2 '19 at 14:24
Gonçalo Peres 龚燿禄
2,89133 gold badges1111 silver badges2727 bronze badges
answered Feb 8 '11 at 21:06
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How do you get the magnitude of a vector in Numpy?
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In [4]: %timeit np.sqrt((a*a).sum(axis=1))
100000 loops, best of 3: 15.6 µs per loop
In [5]: %timeit np.sqrt(np.einsum('ij,ij->i',a,a))
100000 loops, best of 3: 8.71 µs per loop
or vectors:
In [5]: a = np.arange(100000)
In [6]: %timeit np.sqrt(a.dot(a))
10000 loops, best of 3: 80.8 µs p...
Rank items in an array using Python/NumPy, without sorting array twice
...)
%%timeit -n10000 -r5
x = (rankdata(l) - 1).astype(int)
>>> 128 µs ± 2.72 µs per loop (mean ± std. dev. of 5 runs, 10000 loops each)
%%timeit -n10000 -r5
a = np.array(l)
r = a.argsort().argsort()
>>> 69.1 µs ± 464 ns per loop (mean ± std. dev. of 5 runs, 10000 loops each)...
window.close and self.close do not close the window in Chrome
...ort of the hacks we have no clean solution, pity.
– GµårÐïåñ
Nov 5 '13 at 0:13
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