大约有 47,000 项符合查询结果（耗时：0.0670秒） [XML]
Checking oracle sid and database name
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I presume SELECT user FROM dual; should give you the current user
and SELECT sys_context('use...
How would you compare jQuery objects?
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158
You need to compare the raw DOM elements, e.g.:
if ($(this).parent().get(0) === $('body').get...
How do I write a short literal in C++?
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edited Sep 29 '15 at 22:39
Jonathan Leffler
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Revert the `--no-site-packages` option with virtualenv
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162
Try removing (or renaming) the file no-global-site-packages.txt in your Lib folder under your ...
mysql create user if not exists
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edited Oct 18 '18 at 5:04
answered May 16 '13 at 16:24
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Visual Studio, Find and replace, regex
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For versions before Visual studio 2012:
It works when I do this:
find include "{[a-zA-Z]+\.h}",
replace with include <\1>.
The most relevant parts for your question are the curly braces {} and the back reference \1: \n references to the n'th group indicat...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...ference between :key => "value" (hashrocket) and key: "value" (Ruby 1.9) notations?
5 Answers
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NumPy array initialization (fill with identical values)
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NumPy 1.8 introduced np.full(), which is a more direct method than empty() followed by fill() for creating an array filled with a certain value:
>>> np.full((3, 5), 7)
array([[ 7., 7., 7., 7., 7.],
[ 7., 7., ...
Why modelVersion of pom.xml is necessary and always set to 4.0.0?
... A POM has to comply with a model. Let's say Maven 4 comes up with model 4.1. If you write your pom to comply with 4.1, it wouldn't be compatible with Maven 3 and model 4.0.0.
It's defined as a mandatory, possibly to enforce a specific XML model in case new models are defined.
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Replacing some characters in a string with another character
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edited Aug 23 '14 at 23:29
Stefan van den Akker
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