关于Graphics绘制出的矩形宽高无法改变的问题 about hilo HOT 6 CLOSED

        var countdown = new H.Graphics({alpha : 0.5,scaleX : 1});
        countdown.beginFill('#f00');
        countdown.drawRect(200,10,400,10);
        countdown.endFill();
        this.addChild(countdown);
        var ticker = new H.Ticker(1);
        countdown.tick = function(){
            console.log(countdown);
            countdown.x += 4;
            countdown.scaleX -= 0.02;
            console.log(countdown.scaleX);
            //使用缩放时,需要移动countdown的X的值  偏差为scaleX * left
        }
        ticker.addTick(countdown);
        ticker.start();

var countdown = new H.Graphics({alpha : 0.5,scaleX : 1,x:200});
        countdown.beginFill('#f00');
        countdown.drawRect(0,10,400,10);
        countdown.endFill();
        this.addChild(countdown);
        var ticker = new H.Ticker(1);
        countdown.tick = function(){
            console.log(countdown);
            countdown.scaleX -= 0.02;
            console.log(countdown.scaleX);
            //使用缩放时,需要移动countdown的X的值  偏差为scaleX * left
        }
        ticker.addTick(countdown);
        ticker.start();

var countdown = new H.Graphics({alpha : 0.5,scaleX : 1,x:200,pivotX:200});
        countdown.beginFill('#f00');
        countdown.drawRect(200,10,400,10);
        countdown.endFill();
        this.addChild(countdown);
        var ticker = new H.Ticker(1);
        countdown.tick = function(){
            console.log(countdown);
            countdown.scaleX -= 0.02;
            console.log(countdown.scaleX);
            //使用缩放时,需要移动countdown的X的值  偏差为scaleX * left
        }
        ticker.addTick(countdown);
        ticker.start();