<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
  <channel>
    <title>CAD开发者社区 - C 函数</title>
    <link>https://www.cadn.net.cn/portal.php?mod=list&amp;catid=864</link>
    <description>Latest 20 articles of C 函数</description>
    <copyright>Copyright(C) CAD开发者社区</copyright>
    <generator>Discuz! Board by Comsenz Inc.</generator>
    <lastBuildDate>Tue, 12 May 2026 08:16:13 +0000</lastBuildDate>
    <ttl>60</ttl>
    <image>
      <url>https://www.cadn.net.cn/static/image/common/logo_88_31.gif</url>
      <title>CAD开发者社区</title>
      <link>https://www.cadn.net.cn/</link>
    </image>
    <item>
      <title>caddr（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7744</link>
      <description><![CDATA[返回列表的第三个元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:18:59 +0000</pubDate>
    </item>
    <item>
      <title>cadr（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7745</link>
      <description><![CDATA[返回列表的第二个元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:17:19 +0000</pubDate>
    </item>
    <item>
      <title>汽车（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7746</link>
      <description><![CDATA[返回列表的第一个元素]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:15:39 +0000</pubDate>
    </item>
    <item>
      <title>CDR（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7747</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>Thu, 05 Jan 2023 14:13:59 +0000</pubDate>
    </item>
    <item>
      <title>chr（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7748</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>Thu, 05 Jan 2023 14:12:19 +0000</pubDate>
    </item>
    <item>
      <title>关闭（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7749</link>
      <description><![CDATA[关闭打开的文件]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:10:39 +0000</pubDate>
    </item>
    <item>
      <title>命令（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7750</link>
      <description><![CDATA[执行自动CAD 命令]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:08:59 +0000</pubDate>
    </item>
    <item>
      <title>command-s（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7751</link>
      <description><![CDATA[执行 AutoCAD 命令和提供的输入]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:07:19 +0000</pubDate>
    </item>
    <item>
      <title>cond（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7752</link>
      <description><![CDATA[用作 AutoLISP 的主要条件函数]]></description>
      <category>C 函数</category>
      <author>admin</author>
      <pubDate>Thu, 05 Jan 2023 14:05:39 +0000</pubDate>
    </item>
    <item>
      <title>缺点（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7753</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>Thu, 05 Jan 2023 14:03:59 +0000</pubDate>
    </item>
    <item>
      <title>cos（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7754</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>Thu, 05 Jan 2023 14:02:19 +0000</pubDate>
    </item>
    <item>
      <title>cvunit（AutoLISP）</title>
      <link>https://www.cadn.net.cn/portal.php?mod=view&amp;aid=7755</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>Thu, 05 Jan 2023 14:00:39 +0000</pubDate>
    </item>
  </channel>
</rss>