<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script>
<script type="text/javascript">  
    console.log(returnCitySN["cip"]+','+returnCitySN["cname"])  
</script>

uni.request({
    url:'http://pv.sohu.com/cityjson?ie=utf-8',
  method:'POST',
  success: (res) => {
        const reg = /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/;
  let ip = reg.exec(res.data);
  console.log(ip[0]);
  }
})