大约有 1,700 项符合查询结果（耗时：0.0269秒） [XML]
How can I add a vertical scrollbar to my div automatically?
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Mr_GreenMr_Green
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Summarizing multiple columns with dplyr? [duplicate]
...gt; <dbl> <dbl> <dbl>
#> 1 1 3.08 2.98 2.98 2.91
#> 2 2 3.03 3.04 2.97 2.87
#> 3 3 2.85 2.95 2.95 3.06
If you want to summarize only certain columns, use summarise_at or summarise_if functions.
Alternatively, the purrrlyr package provides the same ...
Turn off auto formatting in Visual Studio
...swered Mar 30 '11 at 22:03
Tango91Tango91
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WebSockets protocol vs HTTP
...e: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: CG=US:TX:Arlington; path=/
Last-Modified: Wed, 13 Feb 2013 18:55:22 GMT
Vary: Accept-Encoding
Cache-Control: max-age=60, private
Expires: Wed, 13 Feb 2013 18:56:54 GMT
Content-Encoding: gzip
Both HTTP and WebSockets have eq...
How to commit a change with both “message” and “description” from the command line? [duplicate]
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Then, your commits will appear:
pick e152ce2 Update framework
pick ffcf91e Some magic
pick fa672e1 Update comments
Select the commit you want to reword and save.
pick e152ce2 Update framework
reword ffcf91e Some magic
pick fa672e1 Update comments
Now, you have the opportunity to add header ...
Replacing instances of a character in a string
...swered Sep 2 '15 at 7:20
Dineshs91Dineshs91
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keytool error :java.io.IoException:Incorrect AVA format
... rulerule
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How do I convert a datetime to date?
... arsars
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find() with nil when there are no records
...ered Nov 12 '14 at 10:45
hattila91hattila91
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How to get year/month/day from a date object?
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Needs parens. Otherwise october will show up as month 91 (since 9 + 1 = 91 in stringland)
– rob
Oct 2 '12 at 21:00
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