marker = new AMap.Marker({
                        map: this.map,
                        position: Latlong,
                        icon: new AMap.Icon({
                            image: "images/kouzhao.png",
                            size: new AMap.Size(50, 50),  //图标大小
                            imageSize: new AMap.Size(40, 40)
                        })
                    });