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Removing duplicates from a list of lists
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>>> k = [[1, 2], [4], [5, 6, 2], [1, 2], [3], [4]]
>>> import itertools
>>> k.sort()
>>> list(k for k,_ in itertools.groupby(k))
[[1, 2], [3], [4], [5, 6, 2]]
itertools often offers the fastest and most powerful so...
php中json_decode()和json_encode()的使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e #1 json_decode() 的例子
<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
var_dump(json_decode($json));
var_dump(json_decode($json, true));
?>
上例将输出：
object(stdClass)#1 (5) {
["a"] => int(1)
["b"] => int(2)
["c"] => int(3)
["d"] => int(4)
["e"] => int(5) ...
Does the order of LINQ functions matter?
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147
It will depend on the LINQ provider in use. For LINQ to Objects, that could certainly make a hu...
What's the difference between nohup and ampersand
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answered Mar 24 '13 at 5:04
nemonemo
44.3k1010 gold badges115115 silver badges118118 bronze badges
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Can you break from a Groovy “each” closure?
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194
Nope, you can't abort an "each" without throwing an exception. You likely want a classic loop i...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
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64
CDI is preferred over plain JSF because CDI allows for JavaEE-wide dependency injection. You can...
How can I link to a specific glibc version?
When I compile something on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
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How can I get the last 7 characters of a PHP string?
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AsaphAsaph
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What is the purpose of the reader monad?
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edited Jan 25 at 19:47
Matthias Braun
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