小程序（三十一）逆地址解析

官方文档非常全：
https://lbs.qq.com/qqmap_wx_jssdk/method-reverseGeocoder.html

后台service地址
https://lbs.qq.com/webservice_v1/guide-gcoder.html

getAddressName: function () {
        var that = this;
        var locationString = this.data.latitude + "," + this.data.longitude;
        var qqmapsdk = new QQMapWX({
            key: 'MHUBZ-B6C6X-55***********', // 必填
            
        });
        console.log(locationString);
        qqmapsdk.reverseGeocoder({
            location: locationString || '', //获取表单传入的位置坐标,
            sig:"1i5cUFC*****",//看情况是否有sig