大约有 42,000 项符合查询结果(耗时:0.0552秒) [XML]

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What exactly does a jar file contain?

As an intern, I use company code in my projects and they usually send me a jar file to work with. I add it to the build path in Eclipse and usually all is fine and dandy. ...
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What does the “at” (@) symbol do in Python?

I'm looking at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included. ...
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Most efficient way to cast List to List

I have a List<SubClass> that I want to treat as a List<BaseClass> . It seems like it shouldn't be a problem since casting a SubClass to a BaseClass is a snap, but my compiler complains that the cast is impossible. ...
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)

Does C++ support ' finally ' blocks? 16 Answers 16 ...
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Why does NULL = NULL evaluate to false in SQL server

In SQL server if you have nullParam=NULL in a where clause, it always evaluates to false. This is counterintuitive and has caused me many errors. I do understand the IS NULL and IS NOT NULL keywords are the correct way to do it. But why does SQL server behave this way? ...
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Using Panel or PlaceHolder

What is the difference between <asp:Panel > and <asp:PlaceHolder > in ASP.NET? 5 Answers ...
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HTTP GET with request body

I'm developing a new RESTful webservice for our application. 20 Answers 20 ...
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Explain “claims-based authentication” to a 5-year-old

Well, not exactly to a 5-year-old, but please avoid buzzword and enterprisespeak if possible. 6 Answers ...
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Is there any significant difference between using if/else and switch-case in C#?

What is the benefit/downside to using a switch statement vs. an if/else in C#. I can't imagine there being that big of a difference, other than maybe the look of your code. ...
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Is there something like RStudio for Python? [closed]

In RStudio, you can run parts of code in the code editing window, and the results appear in the console. 10 Answers ...