javascript操作域名正则表达式例子源码
javascript操作域名正则表达式，这里的域名正则表达式要求格式为www.ajaxcn.net,包含www.和常见的域名后缀结尾，详细代码情况如下：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="tsz._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
<script>
function check() {
var txt=document.getElementById("txt_test").value;
var regex=/^www\.([\w-]+\.)+((com)|(net)|(org)|(gov\.cn)|(info)|(cc)|(com\.cn)|(net\.cn)|(org\.cn)|(name)|(biz)|(tv)|(cn)|(mobi)|(name)|(sh)|(ac)|(io)|(tw)|(com\.tw)|(hk)|(com\.hk)|(ws)|(travel)|(us)|(tm)|(la)|(me\.uk)|(org\.uk)|(ltd\.uk)|(plc\.uk)|(in)|(eu)|(it)|(jp))$/;
if (!regex.test(txt)) {
alert("不是正确的域名");
txt.focus;
return false;
}
else {
alert("正确的域名");
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txt_test" runat="server"></asp:TextBox>格式www.ajaxcn.net
</div>
<asp:Button ID="Button1" runat="server" OnClientClick="return check();" Text="Button" />
</form>
</body>
</html>
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