[知識(shí)點(diǎn)]
 1、AS創(chuàng)建按鈕 upState、overState、 downState、 hitTestState
 2、打開(kāi)網(wǎng)頁(yè) navigateToURL()
 3、用for創(chuàng)建的若干個(gè)按鈕，得到對(duì)應(yīng)的數(shù)，便于取得數(shù)組中對(duì)應(yīng)的某元素 var b:SimpleButton=event.target as SimpleButton;getChildIndex(b)
 4、運(yùn)用Timer類(lèi)創(chuàng)建按鈕指示移動(dòng)效果]
 
//設(shè)置幀速 
stage.frameRate = 30;
//申明一些變量 
var namearray:Array = new Array("閃吧","動(dòng)漫","教材","素材","論壇");
var urlarray:Array=new Array("http://www.","http://www./flash", 
"http://www2./teach","http://www./download.shtml", 
"http://space./bbs");
var btn:SimpleButton;
var k:uint;
var url:URLRequest;
var t:Timer = new Timer(30);
var X0:Number;
var Y0:Number;
//創(chuàng)建按鈕 
for (k=0; k<namearray.length; k++)
{
 btn=new SimpleButton();
 btn.x = 50 * k + 100;
 btn.y = 50;
 btn.upState = hua(0x006600);
 btn.overState = hua(0x009900);
 btn.downState = hua(0x006600);
 btn.hitTestState = btn.upState;
 btn.addEventListener(MouseEvent.MOUSE_MOVE,jg);
 btn.addEventListener(MouseEvent.CLICK,dj);
 var txt:TextField=new TextField();
 txt.autoSize = TextFieldAutoSize.CENTER;
 txt.textColor = 0xffffff;
 txt.text = namearray[k];
 txt.x=(btn.width-txt.width)/2+btn.x;
 txt.y=(btn.height-txt.height)/2+btn.y;
 addChild(btn);
 addChild(txt);
 txt.mouseEnabled = false;
}
function hua(color:uint):Shape
{
 var circle:Shape=new Shape();
 circle.graphics.beginFill(color);
 circle.graphics.drawRect(0,0,50,20);
 circle.graphics.endFill();
 return circle;
}
//按鈕指示 
var zs:Sprite=new Sprite();
zs.graphics.beginFill(0x009900);
zs.graphics.moveTo(-5,15);
zs.graphics.lineTo(5,15);
zs.graphics.lineTo(0,10);
zs.graphics.lineTo(-5,15);
zs.graphics.endFill();
zs.x = 125;
zs.y = 35;
addChild(zs);
//按鈕指示的坐標(biāo)設(shè)置 
t.addEventListener("timer",js);
function js(e:TimerEvent):void
{
 var dx:Number = X0 - zs.x;
 var dy:Number = Y0 - zs.y;
 var jl:Number=Math.sqrt(dx*dx+dy*dy);
 if (jl<1)
 {
  zs.x = X0;
  zs.y = Y0;
  t.stop();
 }
 else
 {
  var vx:Number = dx * .2;
  var vy:Number = dy * .2;
  zs.x +=  vx;
  zs.y +=  vy;
 }
}
//鼠標(biāo)經(jīng)過(guò)按鈕 
function jg(e:MouseEvent):void
{
 X0 = e.target.x + 25;
 Y0 = e.target.y - 15;
 t.start();
}
//鼠標(biāo)按下按鈕 
function dj(e:MouseEvent):void
{
 var b:SimpleButton = e.target as SimpleButton;
 url = new URLRequest(urlarray[getChildIndex(b) / 2]);
 navigateToURL(url);
}