大约有 42,000 项符合查询结果(耗时:0.0866秒) [XML]

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What's the purpose of using braces (i.e. {}) for a single-line if or loop?

... Let's attempt to also modify i when we increment j: int j = 0; for (int i = 0 ; i < 100 ; ++i) if (i % 2 == 0) j++; i++; Oh no! Coming from Python, this looks ok, but in fact it isn't, as it's equivalent to: int ...
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Why use a ReentrantLock if one can use synchronized(this)?

I'm trying to understand what makes the lock in concurrency so important if one can use synchronized (this) . In the dummy code below, I can do either: ...
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Fast permutation -> number -> permutation mapping algorithms

... To describe a permutation of n elements, you see that for the position that the first element ends up at, you have n possibilities, so you can describe this with a number between 0 and n-1. For the position that the next elem...
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What are the primary differences between Haskell and F#? [closed]

...g really definitive. What are the primary differences and why would I want to choose one over the other? 5 Answers ...
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Mac OS X Terminal: Map option+delete to “backward delete word”

Tried to map it from Preferences -> Settings -> Keyboard, but the "key" combo box has only "forward delete" but no "delete". My keyboard on the other hand has only "delete" and no "forward delete"! ...
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How was the first compiler written?

... Assembly instructions are (generally) a direct mapping to opcodes, which are (multi-)byte values of machine code that can be directly interpreted by the processor. It is quite possible to write a program in opcodes directly by looking them up from a table (such as this one for th...
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What is an API key? [closed]

...s it's being used for. By and large, however, an API key is the name given to some form of secret token which is submitted alongside web service (or similar) requests in order to identify the origin of the request. The key may be included in some digest of the request content to further verify the o...
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Bootstrap 3 Navbar with Logo

I want to use the Bootstrap 3 default navbar with an image logo instead of text branding. What's the proper way of doing this without causing any issues with different screen sizes? I assume this a common requirement, but I haven't yet seen a good code sample. A key requirement other than having acc...
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How to mock ConfigurationManager.AppSettings with moq

I am stuck at this point of code that I do not know how to mock: 8 Answers 8 ...
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How to add ASP.NET 4.0 as Application Pool on IIS 7, Windows 7

Configuring servers is not my strong suit by any means. I'm trying to move a development project to Windows 7. One of the things that I need to run the application is to select ASP.NET v4.0 as the application pool within IIS. ...