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 <title><![CDATA[请教高手]]></title>
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 <description><![CDATA[同意三楼的说法。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-12901#214654.html]]></link>
 <author><![CDATA[雪花飘飘]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Apr 2008 10:56:22 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[xuexile]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-12901#214366.html]]></link>
 <author><![CDATA[lxmlxmlxy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Apr 2008 01:38:09 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意上楼的说法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-12901#214333.html]]></link>
 <author><![CDATA[周建锋]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Apr 2008 01:20:52 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用楼主zwz579于2008-04-28 22:08发表的 请教高手 :
三菱计数器C0的数据为0时在减1时为什么会是65535，不是-1吗？[/quote]

-1的補碼不就是65535嘛]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-12901#214306.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Apr 2008 00:42:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-12901#214295.html]]></link>
 <author><![CDATA[刘建勇]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Apr 2008 00:10:03 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[有的计数器是累加的，有的是可加可减的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-12901#214247.html]]></link>
 <author><![CDATA[sonmens]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 28 Apr 2008 14:43:55 +0000]]></pubdate>
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