JavaScript 获取客户端 IP 地址的三种常用方案

<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script> 
<script type="text/<A class=infotextkey href="https://www.jb51.net/" target=_blank>javascript</A>"> 
document.write(returnCitySN["cip"]+','+returnCitySN["cname"]) 
</script>

<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>

<script type="text/javascript" src="http://fw.qq.com/ipaddress" charset="gb2312"></script>
$(document).ready(function() { 
  $("#ip").val(IPData[0]); 
  $("#add").val(IPData[2]); 
})