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 <title><![CDATA[wincc内部变量]]></title>
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 <description><![CDATA[内部变量的值乘以2就实现了左移，除以2实现右移。

另外：C语言中的移位&nbsp;&nbsp; &gt;&gt;1&nbsp;&nbsp;右移1位
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131657#1183067.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 15 Dec 2011 03:45:43 +0000]]></pubdate>
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