大约有 43,000 项符合查询结果(耗时:0.0743秒) [XML]

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Converting Integer to Long

I need to get the value of a field using reflection. It so happens that I am not always sure what the datatype of the field is. For that, and to avoid some code duplication I have created the following method: ...
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How is Racket different from Scheme?

Racket is a descendant of Scheme. How is Racket different than R6RS? What did it add, or take away, or is just different? 6...
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How to split long commands over multiple lines in PowerShell

How do you take a command like the following in PowerShell and split it across multiple lines? 8 Answers ...
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Creating an R dataframe row-by-row

I would like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list...
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How to “crop” a rectangular image into a square with CSS?

I know that it is impossible to actually modify an image with CSS, which is why I put crop in quotes. 10 Answers ...
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Creating a Pandas DataFrame from a Numpy array: How do I specify the index column and column headers

I have a Numpy array consisting of a list of lists, representing a two-dimensional array with row labels and column names as shown below: ...
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What is the proper way to re-attach detached objects in Hibernate?

I have a situation in which I need to re-attach detached objects to a hibernate session, although an object of the same identity MAY already exist in the session, which will cause errors. ...
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Usage of forceLayout(), requestLayout() and invalidate()

I'm a bit confused about the roles of forceLayout() , requestLayout() and invalidate() methods of the View class. 6 ...
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Everyauth vs Passport.js?

Everyauth and Passport.js seem to have very similar feature sets. What are some of the positive and negative comparisons between the two that would make me want to use one over the other? ...
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Is there a way to run Python on Android?

We are working on an S60 version and this platform has a nice Python API.. 23 Answers ...