image: new Icon({
                src: '/static/dingwei.png',
                scale: 0.2
              })

const myLocationLayer = new VectorLayer({
          map: map,
          source: _this.mylocationSource,
          visible: true,
          style: function(feature) {
            return new Style({
              image: new Icon({
                src: 'static/dingwei.png',
                scale: 0.2
              })
            })
          }
        });