1.在舞台新建一个元件ball；用椭圆工具画一个圆。
2.代码：
this.addEventListener(Event.ENTER_FRAME , onEnterframe);
var shift:Number = 0; var startX = 200; var startY = 200; var r = 60;
graphics.lineStyle(0); graphics.moveTo(startX + r , startY);
function onEnterframe(evt: Event) { graphics.lineTo(startX + r * Math.cos(shift),startY + r * Math.sin(shift)); ball.x = startX + r * Math.cos(shift); ball.y = startY + r * Math.sin(shift); shift += 15; }
更多详情请点击 http://blog.sina.com.cn/zhaojianjunzjj
