大约有 42,000 项符合查询结果（耗时：0.0382秒） [XML]
How to escape text for regular expression in Java
...se not that this doesn’t escape the string itself, but wraps it using \Q and \E. This may lead to unexpected results, for example Pattern.quote("*.wav").replaceAll("*",".*") will result in \Q.*.wav\E and not .*\.wav, as you might expect.
– Matthias Ronge
Jan ...
How do I check what version of Python is running my script?
... to your code:
assert sys.version_info >= (2, 5)
This compares major and minor version information. Add micro (=0, 1, etc) and even releaselevel (='alpha','final', etc) to the tuple as you like. Note however, that it is almost always better to "duck" check if a certain feature is there, and if...
Django: Get an object form the DB, or 'None' if nothing matches
...orks exactly as it suppose to. It returns the first object in query result and doesn't cares if multiple results are found. If you need to check for multiple objects returned you should use .get() instead.
– Cesar Canassa
Mar 13 '14 at 15:03
...
Max parallel http connections in a browser?
...s specifically related to HTTP 1.1; other protocols have separate concerns and limitations (i.e., SPDY, TLS, HTTP 2).
share
|
improve this answer
|
follow
|
...
All possible array initialization syntaxes
...
These are the current declaration and initialization methods for a simple array.
string[] array = new string[2]; // creates array of length 2, default values
string[] array = new string[] { "A", "B" }; // creates populated array of length 2
string[] array = ...
submitting a GET form with query string params and hidden params disappear
...RFC1866, page 46; HTML 4.x section 17.13.3) state:
If the method is "get" and the action is an HTTP URI, the user agent takes the value of action, appends a `?' to it, then appends the form data set, encoded using the "application/x-www-form-urlencoded" content type.
Maybe one could percent-encode...
Downloading an entire S3 bucket?
...
AWS CLI
See the "AWS CLI Command Reference" for more information.
AWS recently released their Command Line Tools, which work much like boto and can be installed using
sudo easy_install awscli
or
sudo pip install awscli
Once installed, you can th...
Failed to locate the winutils binary in the hadoop binary path
.... I didn't find winutils exe file in hadoop bin folder. I tried below commands
15 Answers
...
JavaScript string newline character?
...);
<textarea id="test" name="test">
</textarea>
IE8 and Opera 9 on Windows use \r\n. All the other browsers I tested (Safari 4 and Firefox 3.5 on Windows, and Firefox 3.0 on Linux) use \n. They can all handle \n just fine when setting the value, though IE and Opera will conver...
How do you create a daemon in Python?
...The first result is to this code recipe which has a lot of documentation and explanation, along with some useful discussion underneath.
...