问如何在谷歌地图中编辑一个折线？

EN

"polyline" : {
    "points" : "eir~FdezuOhFIF?HAdFG"
 },

for(var i = 0; i < markers.length; i++) {
    var start = target_latlng;
    var end = markers[i].getPosition();
    var request = {
        origin: start,
        destination: end,
        travelMode: google.maps.TravelMode.WALKING
    };
    directionsService.route(request, function(directionResult, status) {
        if (status == google.maps.DirectionsStatus.OK) {
            route = directionResult.routes[0].legs[0];
            for(var i = 0; i < route.steps.length; i++) {
                var marker = new google.maps.Marker({
                    position: route.steps[i].start_location,
                    map: map
                });


                route.steps[i].polyline.points.getPath(); // does not work!


            }
        }
    });
}