腾讯地图定位及坐标解析

<h1>腾讯地图测试</h1>
<div>您在当的位置（经度：<span id="now_lat"></span>，纬度：<span id="now_lng"></span>）<button type="button"
        onclick="geolocation.getLocation(showPosition, showErr, options)">获取当前位置</button></div>
        <div>您点击的位置（经度：<span id="poi_lat"></span>，纬度：<span id="poi_lng"></span>，解析出来的地址：<span id="poi_address"></span>）</div>
<div id="pos-area">

</div>

<script type="text/JavaScript">
var appkey ="A4KBZ-LUZE3-VPW3T-YGU5N-SIT2S-5ZFVH";

var geolocation = new qq.maps.Geolocation(appkey, "myapp");
var options = {timeout: 8000};

$(function(){

//加载完成后就取当前位置 
geolocation.getLocation(showPosition, showErr, options);

})

    function showPosition(position) {
        console.log(position);
        $('#now_lat').html(position.lat);
        $('#now_lng').html(position.lng);
        $('#poi_lat').html(position.lat);

$('#poi_lng').html(position.lng);

        //取出位置坐标了，设置地图显示出来
        var map = new qq.maps.Map(document.getElementById("pos-area"), {
            // 地图的中心地理坐标。
            center: new qq.maps.LatLng(position.lat,position.lng),
            zoom:15
        });
        //添加标记
        var marker = new qq.maps.Marker({
            position:  new qq.maps.LatLng(position.lat,position.lng),
            map: map
        });
        //解析地址
        jiexiaddress(position.lat,position.lng);
        //绑定地图点击事件
        qq.maps.event.addListener(map, "click", function (e) {
            $('#poi_lat').html(e.latLng.getLat().toFixed(6));
            $('#poi_lng').html(e.latLng.getLng().toFixed(6));
            //先移除标记，再添加标记
            marker.setMap(null);
            marker = new qq.maps.Marker({
                position:  new qq.maps.LatLng(e.latLng.getLat(),e.latLng.getLng()),
                map: map
            });
           jiexiaddress(e.latLng.getLat(),e.latLng.getLng());
        });
    };

    function showErr() { 
        alert("定位失败！"); 
    };

//解析地址
function jiexiaddress(lat,lng){

var  url3 = encodeURI("https://apis.map.qq.com/ws/geocoder/v1/?location=" + lat + "," + lng + "&key="+appkey+"&output=jsonp&&callback=?");
            $.getJSON(url3, function (result) {
                if(result.result!=undefined){
                    $('#poi_address').html(result.result.address);
                }else{
                    $('#poi_address').html('');
                }

            })

}