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内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...他许多通用语言（如 Java™、Ruby、Haskell、C#、Perl、Smalltalk 等），每种语言都有众多的爱好者和各自的优点。但是，从计算角度来看，每种编程语言优于 C 或 C++ 的主要优点都与便于内存管理密切相关。与内存相关的编程是如...
Make var_dump look pretty
...her solutions. It is extremely simple and requires no extensions, includes etc and is what I prefer. It's very easy and very fast.
First just json_encode the variable in question:
echo json_encode($theResult);
Copy the result you get into the JSON Editor at http://jsoneditoronline.org/ just copy...
Format date and time in a Windows batch script
...t I need to format the current date and time for later use in files names, etc.
33 Answers
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Database sharding vs partitioning
... use the alphabet to divide the data. A-D is instance 1, E-G is instance 2 etc. Customer data is well suited for this, but will be somewhat misrepresented in size across instances if the partitioning does not take in to account that some letters are more common than others.
Another common technique...
How do I clear only a few specific objects from the workspace?
...rrent set of user-defined variables AND to clear loaded packages, devices, etc. The reproducibility of your work will increase markedly by adopting this habit.
See this excellent thread on Rstudio community for (h/t @kierisi) for a more thorough discussion (the main gist is captured by what I've st...
How to match “any character” in regular expression?
...rite that as [\s\S] (whitespace or non-whitespace), though [\w\W], [\d\D], etc. would all work.
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How does “cat
....
The following does not work for that case:
$ sudo cat <<EOF >/etc/somedir/foo.conf
# my config file
foo=bar
EOF
because the redirection is handled outside of the sudo context.
I ended up using this instead:
$ sudo tee <<EOF /etc/somedir/foo.conf >/dev/null
# my config file
...
How do I get the directory that a program is running from?
...uld be considered subject to change from version to version, arch to arch, etc.
– asveikau
Jan 28 '10 at 0:29
4
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Why does sys.exit() not exit when called inside a thread in Python?
...s with status n, without calling cleanup handlers, flushing stdio buffers, etc."
– Tim Richardson
Jan 19 '19 at 5:50
N...
Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
...Do you have to use any of the other major J2EE technologies like JMS, ESB, etc? If so, and you really can't do without, then you are again constrained to a full-blown J2EE container. Carefully think and investigate before you commit to BPM, for example, and avoid AquaLogic BPM at (almost) all cost...