大约有 48,000 项符合查询结果（耗时：0.0733秒） [XML]
Does Ruby regular expression have a not match operator like “!~” in Perl?
...
AFAIK (?!xxx) is supported:
2.1.5 :021 > 'abc1234' =~ /^abc/
=> 0
2.1.5 :022 > 'def1234' =~ /^abc/
=> nil
2.1.5 :023 > 'abc1234' =~ /^(?!abc)/
=> nil
2.1.5 :024 > 'def1234' =~ /^(?!abc)/
=> 0
...
Java to Clojure rewrite
...
answered Mar 8 '11 at 15:21
mikeramikera
99.8k2323 gold badges236236 silver badges395395 bronze badges
...
How can I catch a ctrl-c event?
... auselen
25k44 gold badges6464 silver badges102102 bronze badges
answered Oct 29 '09 at 1:55
Gab RoyerGab Royer
8,70677 gold...
Usage of sys.stdout.flush() method
...
answered Apr 4 '12 at 21:35
Haldean BrownHaldean Brown
10.4k44 gold badges3636 silver badges5555 bronze badges
...
Passing arguments forward to another javascript function
... Shnatsel
3,28511 gold badge2020 silver badges2121 bronze badges
answered Oct 12 '10 at 12:22
Nick Craver♦Nick Craver
580k...
Multiple aggregations of the same column using pandas GroupBy.agg()
...y
1 0.036901 0.369012
or as a dictionary:
In [21]: df.groupby('dummy').agg({'returns':
{'Mean': np.mean, 'Sum': np.sum}})
Out[21]:
returns
Mean Sum
dummy
1 0.036901 0.369012
...
Does git return specific return error codes?
...your hook exit code.
– Novice C
Oct 21 '16 at 0:45
...
How to reorder data.table columns (without copying)
...he front"
– Henrik
Oct 22 '17 at 12:21
|
show 2 more comments
...
Unique combination of all elements from two (or more) vectors
...
answered Jun 20 '18 at 21:37
hypothesishypothesis
45144 silver badges55 bronze badges
...
IntelliJ 13 - Add Navigate Back/Forward to toolbar?
...n guys!
– Lawrence
May 13 '14 at 14:21
May be they decide to break the product and then sell again old features) The v...