大约有 48,000 项符合查询结果（耗时：0.0605秒） [XML]
Android canvas draw rectangle
...empty rectangle with etc. borderWidth=3 and borderColor=black and part within rectangle don't have content or color. Which function in Canvas to use
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List files by last edited date
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You can use:
ls -Rt
where -R means recursive (include subdirectories) and -t means "sort by last modification date".
To see a list of files sorted by date modified, use:
ls -l -Rt
An alias can also be created to achieve this:
alias lt='ls -lht'
lt
Where -h gives...
Are SVG parameters such as 'xmlns' and 'version' needed?
In about half of the svg examples I see on the internet, the code is wrapped in plain simple <svg></svg> tags.
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Regular expression matching a multiline block of text
I'm having a bit of trouble getting a Python regex to work when matching against text that spans multiple lines. The example text is ('\n' is a newline)
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Timeout command on Mac OS X?
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You can use
brew install coreutils
And then whenever you need timeout, use
gtimeout
..instead. To explain why here's a snippet from the Homebrew Caveats section:
Caveats
All commands have been installed with the prefix 'g'.
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In Clojure, when should I use a vector over a list, and the other way around?
...tors are not seqs, but Lists are. I'm not sure what the rationale is for using one over the other. It seems that vectors are used the most, but is there a reason for that?
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Simple logical operators in Bash
I have a couple of variables and I want to check the following condition (written out in words, then my failed attempt at bash scripting):
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What is the maximum possible length of a query string?
...rotocol — HTTP/1.1) states there is no limit to the length of a query string (section 3.2.1). RFC 3986 (Uniform Resource Identifier — URI) also states there is no limit, but indicates the hostname is limited to 255 characters because of DNS limitations (section 2.3.3).
While the specifications ...
Django connection to PostgreSQL: “Peer authentication failed”
This is the error I am receiving when I try to get to my Django admin site. I had been using MySQL database no problem. I am new to PostgreSQL, but decided to switch because the host I ultimately plan to use for this project does not have MySQL.
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Get the name of the currently executing method
...a symbol – for example, :test_method. To return the method name as a string, call __method__.to_s instead.
Note: This requires Ruby 1.8.7.
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