大约有 1,742 项符合查询结果（耗时：0.0414秒） [XML]
Regex exactly n OR m times
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91
There is no single quantifier that means "exactly m or n times". The way you are doing it is fi...
Are Javascript arrays sparse?
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Justin LoveJustin Love
4,2671919 silver badges3535 bronze badges
4
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How to pip install a package with min and max version range?
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91
you can also use:
pip install package==0.5.*
which is more consistent and easy to read.
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Loading cross-domain endpoint with AJAX
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Kevin BKevin B
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showDialog deprecated. What's the alternative?
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91
From http://developer.android.com/reference/android/app/Activity.html
public final void sho...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...-1.42 -0.11 -0.18 -0.44
7 E F -0.00 1.42 -0.26 1.17
8 E F 0.91 -0.47 1.35 -0.34
9 G H 1.48 -0.63 -1.14 0.17
First let's use .size() to get the row counts:
In [3]: df.groupby(['col1', 'col2']).size()
Out[3]:
col1 col2
A B 4
C D 3
E F 2
G ...
ggplot with 2 y axes on each side and different scales
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hadleyhadley
91.2k2626 gold badges167167 silver badges234234 bronze badges
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Is it possible to read from a InputStream with a timeout?
...eTask.java:228)
at java.util.concurrent.FutureTask.get(FutureTask.java:91)
at test.InputStreamWithTimeoutTest.main(InputStreamWithTimeoutTest.java:74)
I can catch the TimeoutException and do whatever cleanup I want.
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Reset C int array to zero : the fastest way?
...vx):
int:
memset: 268
fill: 268
ZERO: 268
intrin_ZERO: 91
long long:
memset: 402
fill: 399
ZERO: 400
intrin_ZERO: 185
msvc 2015 (optimization flags: /OX /arch:AVX /Oi /Ot):
int
memset: 196
fill: 613
ZERO: 221
intrin_ZERO: 95
long long:
mem...
Why should I use an IDE? [closed]
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91
I guess emacs is an IDE, then ;)
– Svante
Nov 14 '08 at 0:20
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