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 <description><![CDATA[Latest 50 replies of 如何让负值与0比较？求大神告知]]></description>
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 <description><![CDATA[换成有符号的比较，&gt;S或&lt;S [s:21]]]></description>
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 <category><![CDATA[欧姆龙工控论坛]]></category>
 <pubdate><![CDATA[Sun, 26 Feb 2017 13:44:49 +0000]]></pubdate>
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 <description><![CDATA[你用的是无符号的指令比较行不通，你可以用有符号的比较指令CPS，再用标识位，希望帮到你！

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