大约有 47,000 项符合查询结果（耗时：0.0520秒） [XML]
Number of lines in a file in Java
I use huge data files, sometimes I only need to know the number of lines in these files, usually I open them up and read them line by line until I reach the end of the file
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Remote JMX connection
I'm trying to open a JMX connection to java application running on a remote machine.
12 Answers
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Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
I just uninstalled my older versions of Ruby, removed all of my gems
(including Rails), and installed Ruby 2.0. In other words, a totally clean re-install. Upon starting IRB, I received this message:
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How can I set the aspect ratio in matplotlib?
I'm trying to make a square plot (using imshow), i.e. aspect ratio of 1:1, but I can't. None of these work:
5 Answers
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What is :: (double colon) in Python when subscripting sequences?
I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ?
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RGB to hex and hex to RGB
How to convert colors in RGB format to hex format and vice versa?
50 Answers
50
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Representing and solving a maze given an image
What is the best way to represent and solve a maze given an image?
10 Answers
10
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
sort provides two kinds of numeric sort. This is from the man page:
3 Answers
3
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Creating a zero-filled pandas data frame
What is the best way to create a zero-filled pandas data frame of a given size?
6 Answers
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Determine a string's encoding in C#
Is there any way to determine a string's encoding in C#?
9 Answers
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