在as项目里用timer和timertask做一个样式好看显示时间日期和今天是星期几的数字时钟

可以使用以下代码实现：

import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.text.TextField;

var clock:TextField = new TextField();
addChild(clock);

var timer:Timer = new Timer(1000);
timer.addEventListener(TimerEvent.TIMER, updateClock);
timer.start();

function updateClock(event:TimerEvent):void {
    var date:Date = new Date();
    var hours:String = addZero(date.getHours());
    var minutes:String = addZero(date.getMinutes());
    var seconds:String = addZero(date.getSeconds());
    var day:String = getDayOfWeek(date.getDay());
    var dateString:String = hours + ":" + minutes + ":" + seconds + " " + day;
    clock.text = dateString;
}

function addZero(num:int):String {
    return (num < 10) ? "0" + num.toString() : num.toString();
}

function getDayOfWeek(day:int):String {
    var days:Array = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
    return days[day];
}

这段代码使用了 Timer 类来每秒更新一次时间，并使用 TextField 来显示时间和星期几。函数 addZero 和 getDayOfWeek 分别用于格式化时间和获取星期几的字符串。