大约有 47,000 项符合查询结果(耗时:0.0646秒) [XML]

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How to get the last N rows of a pandas DataFrame?

I have pandas dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') : 3 Answers ...
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How to determine if a number is a prime with regex?

I found the following code example for Java on RosettaCode : 4 Answers 4 ...
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Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?

This is a question that came to mind while reading the brilliant answer by Mysticial to the question: why is it faster to process a sorted array than an unsorted array ? ...
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Is it possible to modify variable in python that is in outer, but not global, scope?

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How to create file execute mode permissions in Git on Windows?

I use Git in Windows, and want to push the executable shell script into git repo by one commit. 5 Answers ...
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What is the use for Task.FromResult in C#

In C# and TPL ( Task Parallel Library ), the Task class represents an ongoing work that produces a value of type T. 6 Ans...
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Compare integer in bash, unary operator expected

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`if __name__ == '__main__'` equivalent in Ruby

I am new to Ruby. I'm looking to import functions from a module that contains a tool I want to continue using separately. In Python I would simply do this: ...
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ReadOnlyCollection or IEnumerable for exposing member collections?

Is there any reason to expose an internal collection as a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection? ...
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Regex not operator

Is there an NOT operator in Regexes? Like in that string : "(2001) (asdf) (dasd1123_asd 21.01.2011 zqge)(dzqge) name (20019)" ...