大约有 11,500 项符合查询结果（耗时：0.0245秒） [XML]
Can you provide some examples of why it is hard to parse XML and HTML with a regex? [closed]
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Here's some fun valid XML for you:
<!DOCTYPE x [ <!ENTITY y "a]>b"> ]>
<x>
<a b="&y;>" />
<![CDATA[[a>b <a>b <a]]>
<?x <a> <!-- <b> ?> c --> d
</x>
And this little bundle of joy is valid HTML:
<!DOC...
Removing a list of characters in string
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If you're using python2 and your inputs are strings (not unicodes), the absolutely best method is str.translate:
>>> chars_to_remove = ['.', '!', '?']
>>> subj = 'A.B!C?'
>>> subj.translate(None, ''.join(chars_to_remove))
'ABC'
Otherwise, there are following options t...
Is there a range class in C++11 for use with range based for loops?
I found myself writing this just a bit ago:
8 Answers
8
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What is the difference between the add and offer methods in a Queue in Java?
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I guess the difference is in the contract, that when element can not be added to collection the add method throws an exception and offer doesn't.
From: http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#add%28E%29
If a collection refuses to add a
particular element for an...
How can two strings be concatenated?
How can I concatenate (merge, combine) two values?
For example I have:
12 Answers
12
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Deleting an element from an array in PHP
...d keys starting from 0.
Code
<?php
$array = [0 => "a", 1 => "b", 2 => "c"];
unset($array[1]);
//↑ Key which you want to delete
?>
Output
[
[0] => a
[2] => c
]
\array_splice() method
If you use \array_splice() the keys will be automatically r...
How to move one word left in the vi editor
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Use b to move back one word.
Use w to move forward one word.
And here is a cheat sheet that might be useful for you:
Source: Graphical vi-vim Cheat Sheet and Tutorial
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Compare if two variables reference the same object in python
How to check whether two variables reference the same object?
6 Answers
6
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How to get method parameter names?
...k at the inspect module - this will do the inspection of the various code object properties for you.
>>> inspect.getfullargspec(a_method)
(['arg1', 'arg2'], None, None, None)
The other results are the name of the *args and **kwargs variables, and the defaults provided. ie.
>>>...
Use '=' or LIKE to compare strings in SQL?
...ee the performance difference, try this:
SELECT count(*)
FROM master..sysobjects as A
JOIN tempdb..sysobjects as B
on A.name = B.name
SELECT count(*)
FROM master..sysobjects as A
JOIN tempdb..sysobjects as B
on A.name LIKE B.name
Comparing strings with '=' is much faster.
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