大约有 43,000 项符合查询结果(耗时:0.0579秒) [XML]
Difference between fold and reduce?
...ing to learn F# but got confused when trying to distinguish between fold and reduce . Fold seems to do the same thing but takes an extra parameter. Is there a legitimate reason for these two functions to exist or they are there to accommodate people with different backgrounds? (E.g.: String and...
When should you use 'friend' in C++?
I have been reading through the C++ FAQ and was curious about the friend declaration. I personally have never used it, however I am interested in exploring the language.
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How do I disable “missing docstring” warnings at a file-level in Pylint?
Pylint throws errors that some of files are missing docstrings. I try and add docstrings to each class, method and function but it seems that Pylint also checks that files should a docstring at the beginning of it. Can i disable this somehow? I would like to be notified of a docstring is missing ins...
Converting a list to a set changes element order
...at when I am converting a list to set the order of elements is changed and is sorted by character.
11 Answers
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How to combine multiple conditions to subset a data-frame using “OR”?
... the following syntax before with lot of success when I wanted to use the "AND" condition.
3 Answers
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Vim users, where do you rest your right hand? [closed]
... think that jkl; is actually the more appropriate usage for vi. For one, h and l really don't matter that much. w, e, and b are significantly more useful for horizontal navigation. As a bonus, ; is easy to get at if the language requires it. Having a weaker finger on k hurts, and you don't need your...
Determine Whether Integer Is Between Two Other Integers?
... integer is between two other integers (e.g. greater than/equal to 10000 and less than/equal to 30000 )?
11 Answers
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How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
I have a = [1,2,3,4] and I want d = {1:0, 2:0, 3:0, 4:0}
5 Answers
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Pipe subprocess standard output to a variable [duplicate]
I want to run a command in pythong , using the subprocess module, and store the output in a variable. However, I do not want the command's output to be printed to the terminal.
For this code:
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Large, persistent DataFrame in pandas
I am exploring switching to python and pandas as a long-time SAS user.
6 Answers
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