大约有 16,100 项符合查询结果（耗时：0.0346秒） [XML]
What does -> mean in Python function definitions?
...:
def f(x: float) -> int:
return int(x)
: float tells people who read the program (and some third-party libraries/programs, e. g. pylint) that x should be a float. It is accessed as f.__annotations__['x'], and doesn't have any meaning by itself. See the documentation for more information:
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
...5.7.6 the Password column was renamed "authentication_string" Here you can read more about it: bugs.mysql.com/bug.php?id=76655
– IberoMedia
Feb 4 '18 at 17:05
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Correct way to detach from a container without stopping it
...f8e0676d6519e15c08b518
[berto@g6]$ docker attach test
# here I typed ^P^Q
read escape sequence
# i'm back to my prompt
[berto@g6]$ docker kill test; docker rm -v test
test
test
ctrl+c does work, BUT only when -t (without -i) is used to launch the container:
[berto@g6]$ docker run -t -d --name t...
How do I include a file over 2 directories back?
...e, the following NOT equivalent to the trick above contrary to what can be read elsewhere:
include '/../../index.php';
Indeed, prepending / will work, but it will resolve just like include ../../index.php from the calling script (the difference is that include_path won't be looked afterwards if i...
Using regular expressions to parse HTML: why not?
...reimplement a HTML parser in regexp and regexes surely become 1000 times unreadable.
– Smit Johnth
Aug 6 '15 at 13:25
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Avoiding an ambiguous match exception
...m not 'young' and that sure sounds condescending. A programmer that cannot read new [] { typeof(string) } has other issues than maintaining code. The type is literally right there. Plus 'crazy one-liners' aren't relevant, your preferred style just adds redundant letters into this very line. I'd argu...
Get just the filename from a path in a Bash script [duplicate]
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You can read more about the bash-only solution in the manual under parameter expansion.
– Iain Samuel McLean Elder
Jan 13 '14 at 1:15
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How do I check for null values in JavaScript?
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Readers, please be careful when using this type of test on numeric data. Do not use ! or !! to test for null or undefined on typically-numeric data unless you also want to throw away values of 0.
– Nick...
How to see an HTML page on Github as a normal rendered HTML page to see preview in browser, without
...ion, thank you! I added the links to my R Notebooks with the prefix to the README.md file and it renders my nb.html file very well. Here is the page in case anybody wants to see how it works: github.com/sargdavid/snippets.cvi and htmlpreview.github.io/?https://github.com/sargdavid/…
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setting an environment variable in virtualenv
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Update
As of 17th May 2017 the README of autoenv states that direnv is probably the better option and implies autoenv is no longer maintained.
Old answer
I wrote autoenv to do exactly this:
https://github.com/kennethreitz/autoenv
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