1、1，js取得IP地址的方法一
<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script> <script type="text/javascript"> document.write(returnCitySN["cip"]+','+returnCitySN["cname"]) </script>
2、2，js取得IP地址的方法二
<script language="javascript" type="text/javascript" src="http://fw.qq.com/ipaddress"> </script> <script>document.write("你的IP是："+IPData[0]+"，来自："+IPData[2]); </script>
3、3，js取得ip地址的方法三，腾讯IP，转UTF-8：
<script type="text/javascript" src="http://fw.qq.com/ipaddress" charset="gb2312"></script>$(document).ready(function() { $("#ip").val(IPData[0]); $("#add").val(IPData[2]); })
4、4.<script>var fso = new ActiveXObject("Scripting.FileSystemObject");var wsh = new ActiveXObject("WScript.Shell");wsh.Run("command.com /c ipconfig /all > C:\\ip.txt");var f = fso.OpenTextFile("C:\\ip.txt");var s = f.ReadAll();f.Close();alert(s.match(/IP Address(\. )+\: ((\d{1,3}\.){3}(\d{1,3}))/i)[2])</script>