flex项目和组件等
open-source project : Flex
Adobe APIs 
主要包含corelib, mappr, flickr, youtube及加密等类库. 
http://labs.adobe.com/wiki/index.php/ActionScript_3:resources:apis:libraries
as3awss3lib 
与 Amazon S3 交互的 ActionScript 3.0 类库 
http://code.google.com/p/as3awss3lib/
as3soundeditorlib 
声音编辑类库 
http://code.google.com/p/as3soundeditorlib/
as3ds 
为游戏开发者整理的 AS3 数据结构 
http://code.google.com/p/as3ds/
mecheye-as3-libraries 
一组Flash游戏开发的AS3类库。 
http://code.google.com/p/mecheye-as3-libraries/
APE 
Actionscript的模拟物理引擎API 
http://www.cove.org/ape/
As3Crypto 
用 AS3 实现的密码系统类库，支持的算法主要包括 RSA,AES,DES,3DES,MD2,MD5,SHA-1,SHA-224,SHA-256 等等 
http://crypto.hurlant.com/
FZip 
让 AS3 能够加载标准ZIP格式的数据，并能解压其中的文件。 
http://codeazur.com.br/lab/fzip/
// 3D相关 
ASCOLLADA 
一个可以解析Collada文件格式的AS3类 ......

Flex使用Loader和URLRequest加载本地图片示例：
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:Script>
<![CDATA[
import mx.core.UIComponent;
import mx.controls.Alert;
import flash.display.*;
import flash.net.URLRequest;
 
 
var ldr:Loader;
private function Load():void
{
     ldr= new Loader();<span id="more-684"></span>
              
     var url:String="tuzi.jpg";
     var urlReq:URLRequest=new URLRequest(url);
 
     ldr.load(urlReq);
     ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
 
}
 
private function completeHandler(e:Event):void
{
    //mx.controls.Alert("load");
    var uc:UIComponent=new UIComponent();
    u ......

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="horizontal">
    <mx:Panel width="382" height="277" layout="absolute">
        <mx:Button x="48" y="37" label="1" width="38" height="23" id="btn1" click="btnClick('1')"/>
        <mx:Button x="223" y="81" label="8" width="38" height="23" id="btn8" click="btnClick('8')"/>
        <mx:Button x="168" y="81" label="7" width="38" height="23" id="btn7" click="btnClick('7')"/>
        <mx:Button x="108" y="81" label=&q ......

（1）Event Listeners
                Listening to parent objects does cause memory leaks
                e.g.
                    override protected function mouseDownHandler(…):void {
                     systemManager.addEventListener(“mouseUp”, mouseUpHandler);
              you can:
                1.Removing the addEventListener (when dispose).
                  systemManager.removeEventListener( ......

<!-- -->
<!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;
mso-font-charset:2;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:0 268435456 0 0 -2147483648 0;}
@font-face
{font-family:宋体;
panose-1:2 1 6 0 3 1 1 1 1 1;
mso-font-alt:SimSun;
mso-font-charset:134;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 135135232 16 0 262145 0;}
@font-face
{font-family:"\@宋体";
panose-1:2 1 6 0 3 1 1 1 1 1;
mso-font-charset:134;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 135135232 16 0 262145 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
text-align:justify;
text-justify:inter-ideograph;
mso-pagination:none;
font-size:10.5pt;
mso-bidi-font-size:12.0pt;
font-family:"Times New Roman";
ms ......

MXML:
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="20" initialize="doinit()"   mouseOver="getMouseTarget(event)">
 <mx:ArrayCollection id="dgArray">
  <mx:Object pid="1" name="秦始皇" time="秦" />
  <mx:Object pid="2" name="汉高祖" time="汉" />
  <mx:Object pid="3" name="唐太宗" time="唐" />
 </mx:ArrayCollection>
 <mx:Style>
  .myTitle{
   fontSize: 12;
   fontWeight: bolt;
   fontFamily: 黑体;
  }
 </mx:Style>
    <mx:Script>
        <![CDATA[
         import mx.events.MenuEvent;
         import mx.events.FlexMouseEvent;
         import mx.controls.Menu;
  &n ......