js代码

<script type="text/javascript">
    // 百度地图API功能
    var map = new BMap.Map("allmap");
    map.centerAndZoom(new BMap.Point(116.404, 39.915), 15);

    var myP1 = new BMap.Point(116.380967,39.913285);    //起点
    var myP2 = new BMap.Point(116.424374,39.914668);    //终点
    var myIcon = new BMap.Icon("img/Mario.png", new BMap.Size(32, 70), {    //小车图片
        //offset: new BMap.Size(0, -5),    //相当于CSS精灵
        imageOffset: new BMap.Size(0, 0)    //图片的偏移量。为了是图片底部中心对准坐标点。
    });
    var driving2 = new BMap.DrivingRoute(map, {renderOptions:{map: map, autoViewport: true}});    //驾车实例
    driving2.search(myP1, myP2);    //显示一条公交线路

    window.run = function (){
        var driving = new BMap.DrivingRoute(map);    //驾车实例
        driving.search(myP1, myP2);
        driving.setSearchCompleteCallback(function(){
            var pts = driving.getResults().getPlan(0).getRoute(0).getPath();    //通过驾车实例，获得一系列点的数组
            var paths = pts.length;    //获得有几个点

            var carMk = new BMap.Marker(pts[0],{icon:myIcon});
            map.addOverlay(carMk);
            i=0;
            function resetMkPoint(i){
                carMk.setPosition(pts[i]);
                if(i < paths){
                    setTimeout(function(){
                        i++;
                        resetMkPoint(i);
                    },100);
                }
            }
            setTimeout(function(){
                resetMkPoint(5);
            },100)

        });
    }

    setTimeout(function(){
        run();
    },1500);
</script>