大约有 15,000 项符合查询结果(耗时:0.0641秒) [XML]

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R command for setting working directory to source file location in Rstudio

I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below: ...
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How do I split a string so I can access item x?

Using SQL Server, how do I split a string so I can access item x? 44 Answers 44 ...
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maximum value of int

Is there any code to find the maximum value of integer (accordingly to the compiler) in C/C++ like Integer.MaxValue function in java? ...
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Integrating the ZXing library directly into my Android application

I'm writing this in mere desperation :) I've been assigned to make a standalone barcode scanner (as a proof of concept) to an Android 1.6 phone. ...
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Modern way to filter STL container?

Coming back to C++ after years of C# I was wondering what the modern - read: C++11 - way of filtering an array would be, i.e. how can we achieve something similar to this Linq query: ...
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]

I've googled endlessly for a method of getting a complete (and daily updated) list of all Yahoo ticker symbols available through http://finance.yahoo.com ...
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How to export data as CSV format from SQL Server using sqlcmd?

I can quite easily dump data into a text file such as: 11 Answers 11 ...
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C++ Const Usage Explanation

Can someone explain the usage of each of the const? 12 Answers 12 ...
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How can I convert string date to NSDate?

I want to convert "2014-07-15 06:55:14.198000+00:00" this string date to NSDate in Swift. 18 Answers ...
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Generate list of all possible permutations of a string

How would I go about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters. ...