http://www.cslog.cn/Content/ruby-hex-dec en-us 40 最让我激动的是没办法知道在下个星球上你能发现什么... 16进制到10进制:<br /> &gt;&gt; &quot;B0A0&quot;.hex<br /> =&gt; 45216<br /> 或<br /> &gt;&gt; &quot;B0A0&quot;.to_i(16)<br /> =&gt; 45216<br /> 10进制到16进制:<br /> &gt;&gt; 45216.to_s(16)<br /> =&gt; &quot;b0a0&quot; Mon, 29 Dec 2008 23:25:00 +0800 urn:uuid:aee75417-32ac-457d-a0ce-cfa29dd62092 Captain Zhan http://www.cslog.cn/Content/ruby-hex-dec Ruby on Rails