大约有 40,000 项符合查询结果(耗时:0.0506秒) [XML]

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How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc

What are all the ways of affecting where Perl modules are searched for? or, How is Perl's @INC constructed ? 3 Answers ...
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What is __main__.py?

What is the __main__.py file for, what sort of code should I put into it, and when should I have one? 5 Answers ...
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Capture characters from standard input without waiting for enter to be pressed

...oo much on the terminal used that may be connected with stdin (they are usually line buffered). You can, however use a library for that: conio available with Windows compilers. Use the _getch() function to give you a character without waiting for the Enter key. I'm not a frequent Windows developer...
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What's the difference between django OneToOneField and ForeignKey?

...Guide to Django: OneToOneField A one-to-one relationship. Conceptually, this is similar to a ForeignKey with unique=True, but the "reverse" side of the relation will directly return a single object. In contrast to the OneToOneField "reverse" relation, a ForeignKey "reverse" relation retur...
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Where is SQL Server Management Studio 2012?

... SQL Server 2008 R2 and Visual Studio 2008 and 2010 on my laptop. I've installed SQL Server 2012 and have finally got SQL Server Data Tools to show up, so that I can create SSRS reports in Visual Studio 2010. ...
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jQuery Ajax POST example with PHP

...me local variables var $form = $(this); // Let's select and cache all the fields var $inputs = $form.find("input, select, button, textarea"); // Serialize the data in the form var serializedData = $form.serialize(); // Let's disable the inputs for the duration of the Ajax ...
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Pandas percentage of total with groupby

... is a table of some kind, so 100 * x doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...). – dhardy Feb 6 '15 at 9:42 6 ...
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When would anyone use a union? Is it a remnant from the C-only days?

I have learned but don't really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...
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What is the proper way to comment functions in Python?

Is there a generally accepted way to comment functions in Python? Is the following acceptable? 10 Answers ...
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How to normalize an array in NumPy?

I would like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version of this function ...