调用搜狐js接口获取客户端IP及省分城市

<!-- 引入，搜狐IP地址查询接口（默认GBK） -->
<!-- <script src="http://pv.sohu.com/cityjson"></script> -->
<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script>

<script>
  // 数据都在returnCitySN对象中
  console.log('returnCitySN', returnCitySN)
  document.write("cid: " + returnCitySN["cid"] + "</br>")
  document.write("cip: " + returnCitySN["cip"] + "</br>")
  document.write("cname: " + returnCitySN["cname"])
</script>

借鉴：https://blog.csdn.net/qq_35487189/article/details/83105863