大约有 45,000 项符合查询结果（耗时：0.0479秒） [XML]
Convert unix time to readable date in pandas dataframe
...sense. Pandas: Converting to Timestamps goes through it pretty nicely also now I know about to_datetime.
– W A Carnegie
Oct 7 '13 at 22:55
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Draw line in UIView
...extAddLineToPoint(context, 20.0f, 20.0f); //draw to this point
// and now draw the Path!
CGContextStrokePath(context);
}
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iOS start Background Thread
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cool! didn't know this. Does this apply to [NSThread detachNewThreadSelector:@selector.... also?
– Srikar Appalaraju
Aug 14 '11 at 7:25
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How do you access the matched groups in a JavaScript regular expression?
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@MichaelMikowski now you've just hidden your infinite loop, but your code will run slow. I'd argue that it's better to have code break in a bad way so you catch it in development. Putting some bs maximum iterations break in is sloppy. Hidin...
Random “Element is no longer attached to the DOM” StaleElementReferenceException
...- page is refreshed, or element is removed and re-added
element.click();
Now at the point where you're clicking the element, the element reference is no longer valid. It's close to impossible for WebDriver to make a good guess about all the cases where this might happen - so it throws up its hands...
Add new field to every document in a MongoDB collection
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Pymongo 3.9+
update() is now deprecated and you should use replace_one(), update_one(), or update_many() instead.
In my case I used update_many() and it solved my issue:
db.your_collection.update_many({}, {"$set": {"new_field": "value"}}, upsert=Fa...
Can't start Eclipse - Java was started but returned exit code=13
... will find Java. Click on it and you will find all the different versions. Now you can select which one to uninstall.
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How should I validate an e-mail address?
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I know this answer is about two years old, but when I try this regex using regexr.com, it validates user@gmail.com.nospam, and even longer tlds like .museum. Am I missing something? I don't want to block any of my users by faili...
WCF Service , how to increase the timeout?
...ns to <system.serviceModel> in web.config, but its throwing an error now.... any additional steps I've missed out on...
– JL.
Oct 5 '09 at 14:23
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Label encoding across multiple columns in scikit-learn
...commended way is
OneHotEncoder().fit_transform(df)
as the OneHotEncoder now supports string input.
Applying OneHotEncoder only to certain columns is possible with the ColumnTransformer.
EDIT:
Since this answer is over a year ago, and generated many upvotes (including a bounty), I should probabl...