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    <title>CAD开发者社区 - C 函数</title>
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    <description>Latest 20 articles of C 函数</description>
    <copyright>Copyright(C) CAD开发者社区</copyright>
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      <title>caddr（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6037</link>
      <description><![CDATA[返回列表的第三个元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:43:59 +0000</pubDate>
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    <item>
      <title>cadr（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6039</link>
      <description><![CDATA[返回列表的第二个元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:40:39 +0000</pubDate>
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    <item>
      <title>汽车（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6040</link>
      <description><![CDATA[返回列表的第一个元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:38:59 +0000</pubDate>
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    <item>
      <title>CDR（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6041</link>
      <description><![CDATA[返回一个列表，该列表包含指定列表的第一个元素以外的所有元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:37:19 +0000</pubDate>
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    <item>
      <title>chr（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6042</link>
      <description><![CDATA[将表示字符代码的整数转换为单字符字符串]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:35:39 +0000</pubDate>
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    <item>
      <title>关闭（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6043</link>
      <description><![CDATA[关闭打开的文件]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:33:59 +0000</pubDate>
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    <item>
      <title>命令（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6044</link>
      <description><![CDATA[执行自动CAD 命令]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:32:19 +0000</pubDate>
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    <item>
      <title>command-s（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6045</link>
      <description><![CDATA[执行 AutoCAD 命令和提供的输入]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:30:39 +0000</pubDate>
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    <item>
      <title>cond（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6046</link>
      <description><![CDATA[用作 AutoLISP 的主要条件函数]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:28:59 +0000</pubDate>
    </item>
    <item>
      <title>缺点（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6047</link>
      <description><![CDATA[将元素添加到列表的开头，或构造虚线列表]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:27:19 +0000</pubDate>
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    <item>
      <title>cos（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6048</link>
      <description><![CDATA[返回以弧度表示的角度的余弦值]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:25:39 +0000</pubDate>
    </item>
    <item>
      <title>cvunit（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=6049</link>
      <description><![CDATA[将值从一种度量单位转换为另一种度量单位]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Sat, 07 Jan 2023 13:23:59 +0000</pubDate>
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