大约有 10,150 项符合查询结果(耗时:0.0185秒) [XML]

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What exactly do “u” and “r” string flags do, and what are raw string literals?

While asking this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks. ...
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How do I create an empty array/matrix in NumPy?

I can't figure out how to use an array or matrix in the way that I would normally use a list. I want to create an empty array (or matrix) and then add one column (or row) to it at a time. ...
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How to find Unused Amazon EC2 Security groups

I'm try to find a way to determine orphan security groups so I can clean up and get rid of them. Does anyone know of a way to discover unused security groups. ...
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Go to beginning of line without opening new line in VI

For ages now I've used SHIFT O and SHIFT $ to move to the beginning and end of a line in vi . 10 Answers ...
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How to determine the encoding of text?

I received some text that is encoded, but I don't know what charset was used. Is there a way to determine the encoding of a text file using Python? How can I detect the encoding/codepage of a text file deals with C#. ...
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Are there any disadvantages to always using nvarchar(MAX)?

In SQL Server 2005, are there any disadvantages to making all character fields nvarchar(MAX) rather than specifying a length explicitly, e.g. nvarchar(255)? (Apart from the obvious one that you aren't able to limit the field length at the database level) ...
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Why is Github asking for username/password when following the instructions on screen and pushing a n

I'm the owner of an organization on github and just created a repo and tried pushing but I'm running into an issue where it's asking me for my username even though I can SSH just fine: ...
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How can I get the list of files in a directory using C or C++?

How can I determine the list of files in a directory from inside my C or C++ code? 26 Answers ...
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Is gettimeofday() guaranteed to be of microsecond resolution?

I am porting a game, that was originally written for the Win32 API, to Linux (well, porting the OS X port of the Win32 port to Linux). ...
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How to delete a specific line in a file?

Let's say I have a text file full of nicknames. How can I delete a specific nickname from this file, using Python? 17 Answe...