大约有 46,000 项符合查询结果(耗时:0.0701秒) [XML]

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how to listen to N channels? (dynamic select statement)

...cks until at least one of the cases can proceed, makes a uniform pseudo-random choice, and then executes that case. It returns the index of the chosen case and, if that case was a receive operation, the value received and a boolean indicating whether the value corresponds to a send on the ch...
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How do I query using fields inside the new PostgreSQL JSON datatype?

I am looking for some docs and/or examples for the new JSON functions in PostgreSQL 9.2. 3 Answers ...
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How do I sort a list by different parameters at different timed

...ms. I like the elegant combination you do with the enums, the "descending" and the "Composite". I guess the null values treatment is missing, but it's easy to add the same way as "descending". – KLE Sep 15 '09 at 7:48 ...
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Open a buffer as a vertical split in VIM

If you are editing a file in VIM and then you need to open an existing buffer (e.g. from your buffer list: :buffers ) how can you open it in a vertical split? ...
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AngularJS : Where to use promises?

...to be a complete answer to your question, but hopefully this will help you and others when you try to read the documentation on the $q service. It took me a while to understand it. Let's set aside AngularJS for a moment and just consider the Facebook API calls. Both the API calls use a callback m...
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Are types like uint32, int32, uint64, int64 defined in any stdlib header?

I often see source code using types like uint32, uint64 and I wonder if they should be defined by the programmer in the application code or if they are defined in a standard lib header. ...
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How do I “git blame” a deleted line?

git blame is great for modified and added lines, but how can I find when a line that existed in a specific previous commit was eventually deleted. I'm thinking bisect , but I was hoping for something handier. ...
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Turning off “created by” stamp when generating files in IntelliJ

... In IntelliJ 13 and above it is in the File and Code Templates area of the settings dialog. In Idea 15+ you can get there by typing ctrl+shift+A on windows or cmd+shift+A on osx and then typing Include Templates in the popup action search di...
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Pure virtual destructor in C++

... { public: virtual ~A() = 0; }; inline A::~A() { } should suffice. And since this got a down vote, I should clarify: If you derive anything from A and then try to delete or destroy it, A's destructor will eventually be called. Since it is pure and doesn't have an implementation, undefined be...
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Connect Device to Mac localhost Server? [closed]

... I had the same problem. I turned off my WI-FI on my Mac and then turned it on again, which solved the problem. Click Settings > Turn WI-FI Off. I tested it by going to Safari on my iPhone and entering my host name or IP address. For example: http://<name>.local or http:/...