<![CDATA[Doctor's WebLog]]> http://www.gaobo.info/index.php zh-cn http://www.gaobo.info/read.php/610.htm <![CDATA[匹配合格IPv4地址的正则表达式]]> Doctor <gregry@cqut.edu.cn> Mon, 01 Jun 2009 07:48:48 +0000 http://www.gaobo.info/read.php/610.htm 匹配合格IP地址的正则表达式的模式如下：
^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$

后来到http://www.regexlib.com/搜了下，居然一样
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