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Can't pickle when using multiprocessing Pool.map()
...ed Feb 28 '17 at 14:31
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Nov 29 '09 at 22:16
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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...但同时也需要同步与互斥，也就是要保护共享内存区。
3.1 管道（PIPE）
通俗地讲，Linux管道类似于生活中的自来水管道，水源进入水管流向水龙头，若此时关闭水龙头，该水管中水便会停止流动，此时水源也无法继续流入水管...
how to ignore namespaces with XPath
...
public void MyTestMethod()
{
string _withXmlns = @"<?xml version=""1.0"" encoding=""utf-8""?>
<ParentTag xmlns=""http://anyNamespace.com"">
<Identification value=""ID123456"" />
</ParentTag>
";
var xmlReader = new XmlTextReader(new MemoryStream(Encoding.Default.GetB...
Draw line in UIView
...pathDict valueForKey:@"path"] strokeWithBlendMode:kCGBlendModeNormal alpha:1.0];
}
[[dict_path objectForKey:@"color"] setStroke]; // this method will choose the color from the receiver color object (in this case this object is :strokeColor)
[[dict_path objectForKey:@"path"] strokeWithBl...
How to make a smaller RatingBar?
... In res/drawable you need ratingstars.xml as follow ...
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background"
android:drawable="@drawable/star_empty" />
<item an...
Can I add a custom attribute to an HTML tag?
...document will still be valid:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
[
<!ATTLIST tag myAttri CDATA #IMPLIED>
]>
#IMPLIED means it is an optional attribute, or you could use #REQUIRED, etc.
More inform...
Node.js or Erlang
...cs, Node.js can leverage C and C++ for external addons. nodejs.org/docs/v0.3.1/api/addons.html
– Evan Plaice
Jan 24 '12 at 21:13
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Hidden Features of Xcode
...a big fan of the Open Quickly feature, which is particularly good in Xcode 3.1 and later. When you want to open a file or a symbol definition that's in your project or in a framework, just hit the keyboard shortcut, type a bit of the file or symbol's name, use Up Arrow ↑ and Down Arrow ↓ to pick...
Why can't I do ?
...t;
<meta name='viewport' content='width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=no;'>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>
<title></title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3...
Insert, on duplicate update in PostgreSQL?
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@FrançoisBeausoleil: the chance of a race condition is much smaller than with the "try/handle exception" approach
– a_horse_with_no_name
Feb 21 '12 at 15:32
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