大约有 47,000 项符合查询结果（耗时：0.0644秒） [XML]
Selecting with complex criteria from pandas.DataFrame
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A B C
1 7 80 700
2 4 90 100
4 7 80 200
5 7 60 800
Now if you want to change the returned values in column A you can save their index:
my_query_index = df.query('B > 50 & C != 900').index
....and use .iloc to change them i.e:
df.iloc[my_query_index, 0] = 5000
prin...
Java equivalent to #region in C#
...s. Seriously no hard feeling here, We are all here to learn and share our knowledge and am stating the fact that I was mislead by your answer, maybe it was a good one back in 2010 but not today. I hope you get my point.
– Mazen Elkashef
Mar 1 '16 at 17:02
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Copy all files with a certain extension from all subdirectories
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Yes. 'bin it' means to throw it away. Now amended :-)
– Brian Agnew
Mar 25 '13 at 14:12
13
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Can't connect to localhost on SQL Server Express 2012 / 2016
...and then go back to "SQL Server Services" and restart SQL Server instance. Now you can connect via localhost, at least I could.
Note that this error can of course occur when connecting from other applications as well. Example for a normal C# web application Web.config connection string:
<conn...
Formatting code in Notepad++
...reat. Is there a way to automatically format the code when you save? Right now, when I check enable autoupdate text, it doesn't update when I save or exit the file.
– obesechicken13
Jun 9 '13 at 20:44
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Why can't the tag contain a tag inside it?
As far as I know, this is right:
5 Answers
5
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Specify JDK for Maven to use
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Seems that maven now gives a solution here : Compiling Sources Using A Different JDK
Let's say your JAVA_HOME points to JDK7 (which will run maven processes)
Your pom.xml could be :
<build>
<plugins>
<!-- we wan...
Chrome extension: accessing localStorage in content script
... it will be the storage from that webpage, not the extension page storage.
Now, to let your content script to read your extension storage (where you set them from your options page), you need to use extension message passing.
The first thing you do is tell your content script to send a request to yo...
Centering a view in its superview using Visual Format Language
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Do we know if the limitation still applies with the version of VFL that ships with current iOS 7.x?
– Drux
Jun 29 '14 at 14:07
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How do I hotkey directly to File Search tab in Eclipse
...ces | Keys dialog, which is why "File Search" wasn't showing up for me. I now have Ctrl+H bound to "File Search", as Martin suggested in his answer on this page, and it works great. Thanks Martin!
I ended up working around the original problem by bringing up the Search dialog with Ctrl+H, then c...