摘要： 使用正则表达式Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->publicstaticboolIsIPv4Address(stringip){stringpattern=@"^(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)\.(2 阅读全文