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 <title><![CDATA[有什么意义？]]></title>
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 <description><![CDATA[逻辑运算在单片机编程用得比较多，某些单片机不能位操作，只能每次只至少写一个字。
WAND 是逻辑“字与”&nbsp;&nbsp;&nbsp;&nbsp; 
１０１１　１１００　要将低四位置０，高四位不变。就是１０１１　１１００　ＷＡＮＤ　１１１１　００００
结果就是１０１１　００００，
WXOR 是逻辑 异或　
１０１１　１１００　要将所 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1533082#1718783.html]]></link>
 <author><![CDATA[tingfenghu]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 20 Nov 2015 14:58:04 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第3楼hhk于2015-11-20 22:14发表的&#160;&#160;:
作用是什么？
[/quote]
請百度查XOR GATE跟AND GATE電子上的作用! W沒記錯WORD]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1533082#1718778.html]]></link>
 <author><![CDATA[jonny_jean]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 20 Nov 2015 14:39:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[作用是什么？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1533082#1718761.html]]></link>
 <author><![CDATA[hhk]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 20 Nov 2015 14:14:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了，谢谢楼上]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1533082#1718488.html]]></link>
 <author><![CDATA[苏州电炉]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 19 Nov 2015 23:33:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[与和异或运算，怎能没意义呢？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1533082#1718480.html]]></link>
 <author><![CDATA[sun3751]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 19 Nov 2015 22:00:46 +0000]]></pubdate>
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