var myTimer:Timer = new Timer(100);
myTimer.addEventListener(TimerEvent.TIMER, clock);
myTimer.start();
stop();

function clock(event:TimerEvent) {
	var today:Date = new Date(); //建立 Date 物件
	var hr:int = today.getHours();
	var min:int = today.getMinutes();
	var sec:int = today.getSeconds();
	hr_mc.rotation = (hr + min/60) * 360/12;
	min_mc.rotation = min * 360/60;
	sec_mc.rotation = sec * 360/60;
	digital_time_txt.text = String(hr+100).substr(1,2) + ":" + String(min+100).substr(1,2) + ":" + String(sec+100).substr(1,2);
}