1.查詢地址
搜狐IP地址查詢接口（IP）：http://pv.sohu.com/cityjson
1616 IP地址查詢接口（IP+地址）：http://w.1616.net/chaxun/iptolocal.php
126（地址）: http://ip.ws.126.net/ipquery
2.使用
<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script>//ie指定編碼，默認是gbk
<script>console.log(returnCitySN["cip"]);</script>
<script src="http://w.1616.net/chaxun/iptolocal.php"></script>
<script>console.log(WData)</script>
<script src="http://ip.ws.126.net/ipquery"></script>
<script>console.log(lo);console.log(lc);</script>