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unix - head AND tail of file
Say you have a txt file, what is the command to view the top 10 lines and bottom 10 lines of file simultaneously?
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phantomjs not waiting for “full” page load
I'm using PhantomJS v1.4.1 to load some web pages. I don't have access to their server-side, I just getting links pointing to them. I'm using obsolete version of Phantom because I need to support Adobe Flash on that web pages.
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How to create a sub array from another array in Java?
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313
You can use
JDK > 1.5
Arrays.copyOfRange(Object[] src, int from, int to)
Javadoc
J...
How can I print the contents of a hash in Perl?
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How to debug a referenced dll (having pdb)
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Apply multiple functions to multiple groupby columns
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313
The second half of the currently accepted answer is outdated and has two deprecations. First an...
Convert a 1D array to a 2D array in numpy
I want to convert a 1-dimensional array into a 2-dimensional array by specifying the number of columns in the 2D array. Something that would work like this:
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素材是三张手势图，工程里已经上传好了：...
How can I get a file's size in C++? [duplicate]
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154
#include <fstream>
std::ifstream::pos_type filesize(const char* filename)
{
std::if...