JS读取本地IP地址信息

<div>
        <p>点击下面的按钮，查看本地IP信息</p>
        <span class="span">点击查看</span>
        <p class="cip"></p>
        <p class="cid"></p>
        <p class="cname"></p>
    </div>

    html,body{
            height: 100%;
        }
        body{
            margin: 0
        }
        div{
            padding-left: 50px;
        }
        .span{
            padding: 5px 15px;
            background: #177ad8;
            color: #fff;
            font-size: 14px;
            text-decoration: none;
            border-radius: 7px;
            cursor: pointer;
        }

<script src="http://pv.sohu.com/cityjson?ie=utf-8"></script>
<script>
    var ipspan =document.querySelector(".span");
    ipspan.onclick =function(){
        document.querySelector(".cip").innerHTML =returnCitySN[‘cip‘];
        document.querySelector(".cid").innerHTML =returnCitySN[‘cid‘];
        document.querySelector(".cname").innerHTML =returnCitySN[‘cname‘];
    }
</script>