大约有 40,000 项符合查询结果(耗时:0.0442秒) [XML]

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List all indexes on ElasticSearch server?

I would like to list all indexes present on an ElasticSearch server. I tried this: 22 Answers ...
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Is there a simple, elegant way to define singletons? [duplicate]

... I don't really see the need, as a module with functions (and not a class) would serve well as a singleton. All its variables would be bound to the module, which could not be instantiated repeatedly anyway. If you do wish to use a cla...
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Default initialization of std::array?

...rantee that the syntax std::array<T, N> x; will default-initialize all the elements of the array ? 5 Answers ...
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Define all functions in one .R file, call them from another .R file. How, if possible?

How do I call functions defined in abc.R file in another file, say xyz.R? 1 Answer 1 ...
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How do I apply a style to all buttons of an Android application

...ontent-policy\"\u003e(content policy)\u003c/a\u003e", allowUrls: true }, onDemand: true, discardSelector: ".discard-answer" ,immediatelyShowMarkdownHelp:true,enableSnippets:true }); ...
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How to list of all the tables defined for the database when using active record?

How do I get a list of all the tables defined for the database when using active record? 5 Answers ...
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Python str vs unicode types

...the proper encoding format, as we don't know which one is being used internally to represent the unicode value. – Caumons Aug 3 '13 at 15:45 10 ...
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Why does X[Y] join of data.tables not allow a full outer join, or a left join?

...Y) does both ways at the same time. The number of rows of X[Y] and Y[X] usually differ, whereas the number of rows returned by merge(X,Y) and merge(Y,X) is the same. BUT that misses the main point. Most tasks require something to be done on the data after a join or merge. Why merge all the co...
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How to list all functions in a Python module?

I have a python module installed on my system and I'd like to be able to see what functions/classes/methods are available in it. ...
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What does an Asterisk (*) do in a CSS selector?

... It is a wildcard, this means it will select all elements within that portion of the DOM. For example, if I want apply margin to every element on my entire page you can use: * { margin: 10px; } You can also use this within sub-selections, for example the followi...