大约有 13,913 项符合查询结果（耗时：0.0262秒） [XML]
Pythonic way of checking if a condition holds for any element of a list
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any():
if any(t < 0 for t in x):
# do something
Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:
if True in (t < 0 for t in x):
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What are the differences between Perl, Python, AWK and sed? [closed]
... of lines) of the input file or files. Its language is based on ed, the Unix editor, and although it has conditionals and so on, it is hard to work with for complex tasks. You can work minor miracles with it - but at a cost to the hair on your head. However, it is probably the fastest of the program...
Can't find the 'libpq-fe.h header when trying to install pg gem
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How can I remove the first line of a text file using bash/sed script?
I need to repeatedly remove the first line from a huge text file using a bash script.
16 Answers
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Ruby: What is the easiest way to remove the first element from an array?
... Best answer since (a) evaluates to the trimmed array, and it works as expected on an empty array: [].drop(1) => []
– fearless_fool
Oct 21 '13 at 0:28
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How would you make a comma-separated string from a list of strings?
...sing python 2.7 (which you shouldn't by now) then using str will raise an exception if any item in the list has unicode.
– kroiz
May 26 at 13:54
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How to build & install GLFW 3 and use it in a Linux project
Last night I was working late trying to build the GLFW 3 packages for Linux from source. This process took me a very long time, about 3 hours in total, partly because I am unfamiliar with CMake, and partly because I am was unfamiliar with GLFW.
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How do I set default terminal to terminator? [closed]
Using Xubuntu.
7 Answers
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Matplotlib Legends not working
.../users/legend_guide.html#adjusting-the-order-of-legend-items
line, = plot(x,sin(x)) what does comma stand for?
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what exactly is device pixel ratio?
...s is mentioned every article about mobile web, but nowhere I can found an explanation of what exactly does this attribute measure.
Can anyone please elaborate what does queries like this check?
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