大约有 40,000 项符合查询结果(耗时:0.0579秒) [XML]

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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?

At every company I have worked at, I have found that people are still writing their SQL queries in the ANSI-89 standard: 16...
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What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos

Ive got a bunch of rectangular objects which I need to pack into the smallest space possible (the dimensions of this space should be powers of two). ...
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Biggest GWT Pitfalls? [closed]

I'm at the beginning/middle of a project that we chose to implement using GWT. Has anyone encountered any major pitfalls in using GWT (and GWT-EXT) that were unable to be overcome? How about from a performance perspective? ...
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What is object slicing?

Someone mentioned it in the IRC as the slicing problem. 18 Answers 18 ...
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Copy constructor versus Clone()

In C#, what is the preferred way to add (deep) copy functionality to a class? Should one implement the copy constructor, or rather derive from ICloneable and implement the Clone() method? ...
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Can you explain the concept of streams?

I understand that a stream is a representation of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with? ...
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C# DLL config file

Im trying to add an app.config file to my DLL, but all attempts have failed. 17 Answers ...
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What is the purpose of Android's tag in XML layouts?

...; tag, but I still don't understand how it's useful. Is it a sort-of replacement of the <Frame /> tag, or is it used like so: ...
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File input 'accept' attribute - is it useful?

Implementing a file upload under html is fairly simple, but I just noticed that there is an 'accept' attribute that can be added to the <input type="file" ...> tag. ...
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What is the difference between a weak reference and an unowned reference?

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