大约有 11,000 项符合查询结果(耗时:0.0263秒) [XML]

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Difference between __str__ and __repr__?

What is the difference between __str__ and __repr__ in Python? 23 Answers 23 ...
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Explain the use of a bit vector for determining if all characters are unique

I am confused about how a bit vector would work to do this (not too familiar with bit vectors). Here is the code given. Could someone please walk me through this? ...
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How can I reverse a list in Python?

How can I do the following in Python? 35 Answers 35 ...
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Is there a way to get the XPath in Google Chrome?

I have a webpage I want to use with YQL. But I need the XPath of a specific item. I can see it in the debug tools area for Google Chrome but I don't see a way to copy that XPath. ...
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Moving from CVS to Git: $Id$ equivalent?

... and Git seemed like a reasonable choice. I have it up and running, and it works well so far. One aspect that I like about CVS is the automatic incrementation of a version number. ...
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Simplest way to detect a mobile device in PHP

What is the simplest way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...
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Does Java have something like C#'s ref and out keywords?

Something like the following: 7 Answers 7 ...
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Breaking loop when “warnings()” appear in R

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How do you add a Dictionary of items into another Dictionary

Arrays in Swift support the += operator to add the contents of one Array to another. Is there an easy way to do that for a dictionary? ...
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How to configure MongoDB Java driver MongoOptions for production use?

I've been searching the web looking for best practices for configuring MongoOptions for the MongoDB Java driver and I haven't come up with much other than the API. This search started after I ran into the "com.mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db connection" error and by in...