var domain:String = LoaderInfo(this.root.loaderInfo).parameters.domain;
Security.allowDomain(domain);
Security.allowInsecureDomain(domain);

//地址参数 c.swf?path=website.swf
Stage.path

//检测播放器版本，适用大于8.5版
flash.system.Capabilities.version

field.restrict = "0-9\\^"; //允许数字和^
field.restrict = "0-9\\\\"; //允许数字和反斜杠

//图片彩色变黑白
import flash.filters.ColorMatrixFilter;
var matrix:Array = [ 0.5,0.5,0.082,0,0,0.5,0.5,0.082,0,0,0.5,0.5,0.082,0,0,0,0,0,1,0 ];
var colorMat:ColorMatrixFilter = new ColorMatrixFilter(matrix);
image_mc.filters = [colorMat];

//创建xml的几种方式
//方法一
var xmlstr:String="<a><b>wang</b><c>chun</c><d>lei</d></a>";
var myxml:XML=new XML(xmlstr);
//方法二
var myxml:XML=new XML(<a><b>wang</b><c>chun</c><d>lei</d></a>);
//方法三
var myxml:XML=<a><b>wang</b><c>chun</c><d>lei</d></a>;
//方法四
var ids:Array = ["background", "photoArea", "thumbnail"];
var d:XML = new XML("<demo type='album'></demo>");
for (var i:int = 0; i < 3; i++){
	d = d.appendChild(<component type={ids[i]}></component>)
}

//声音加载中估算长度
import flash.events.Event;
import flash.media.Sound;
import flash.net.URLRequest;
var snd:Sound = new Sound();
snd.load(new URLRequest("http://av.adobe.com/podcast/csbu_dev_podcast_epi_2.mp3"));
var channel:SoundChannel=snd.play();
addEventListener(Event.ENTER_FRAME, onEnterFrame);
snd.addEventListener(Event.SOUND_COMPLETE, onPlaybackComplete);
function onEnterFrame(event:Event):void {
	var estimatedLength:int = Math.ceil(snd.length / (snd.bytesLoaded / snd.bytesTotal));
	var playbackPercent:uint = Math.round(100 * (channel.position / estimatedLength));
	trace("Sound playback is " + playbackPercent + "% complete.");
}
function onPlaybackComplete(event:Event) {
	trace("The sound has finished playing.");
	removeEventListener(Event.ENTER_FRAME, onEnterFrame);
}


//程序延迟执行
import flash.events.TimerEvent;
import flash.utils.Timer;
/**
* delay function
* a quick and easy delay function that can call a function with parameters. configurable
* with delay time and repeat frequency
*
* @param func:Function The function to call when timer is complete
* @param params:Array An array of parameters to pass to the function
* @param delay:int [OPTIONAL] The number of milliseconds to wait before running the function
* @param repeat:int [OPTIONAL] The number of times the function should repeat
*/
function delay(func:Function, params:Array, delay:int = 350, repeat:int = 1):void {
	var f:Function;
	var timer:Timer=new Timer(delay,repeat);
	timer.addEventListener(TimerEvent.TIMER, f = function():void{
			func.apply(null, params);
			if (timer.currentCount == repeat){
				timer.removeEventListener(TimerEvent.TIMER, f);
				timer = null;
			}
		}
	);
	timer.start();
}

/*
int比uint速度快
Array的遍历要比Object或者Dictionary的枚举要快得多
if (myObj != null) 要比 if (myObj) 的速度要慢
for (var i:* in myObj) 比 for (var i:String in myObj) 要快
var myText:String = "a" + "b" + "c"; 比 var myText2:String = [ "a", "b", "c" ].join(""); 速度快
*/

//Dictionary类和Object唯一的区别在于：Dictionary对象可以使用非字符串作为键值对的键。


//使用标签可以从内循环体中直接break掉外循环体
var i:Number,j:Number;
mainLoop:for (i=0; i<10; i) {
	for (j=0; j<10; j) {
		if (i>3&&j>3) {
			break mainLoop;
		}
	}
}

获取10以内的随机整数 Math.random()*10>>0
移位符号 >>0 的功能去除小数点后的数，又如进度条： (已经加载的字节数/总字节数)*100>>0 "%"

function fn1(){trace("1");}
function fn2(){trace("2");}
([fn1,fn2][Math.random()*2>>0])();
这个是随机执行函数的命令

if(i&1){}。i&1 的意思就是判断 i是奇数还是偶数
如果是奇数 i 的2进制表示最后一位是1, i&1=1 真；偶数 i 的2进制表示最后一位是0, i&1=0 假。


for(var i:int=0;i<32;i++){
	arr[i]=getChildByName("Buff_"+i);
}


//及时清理事件侦听
private var listeners:Array = new Array();
override public function addEventListener(type:String, listener:Function, useCapture:Boolean=false, priority:int=0, useWeakReference:Boolean=false):void{
        super.addEventListener(type, listener, useCapture, priority, useWeakReference);
        var newListener:Object = {lType:type, lListener:listener};
        listeners.push( newListener );
}
//调用此方法以清除全部已添加了的事件侦听器
public function clear():void{
        for each( var listener:Object in listeners){
                this.removeEventListener( listener.lType, listener.lListener );
        }
        listeners = [];
}


在/**和*/字符包裹中的字都会被当做是ASDoc说明文字，你还可以使用一些特殊记号，以'@'符号开头，常用的有：
@author 编写者姓名
@param 函数的变量
@return 函数返回值
ASDoc支持使用HTML标签；ASDoc会自动匹配下一个被声明了的对象
在MXML标签上写<!---   -->标签对来替代AS中的/** */标签对，只对设置有ID的组件才能匹配


//加载外部SWF的Class
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,onComplete);
loader.load(new URLRequest("main.swf"));
function onComplete(e:Event):void {
	var domain:ApplicationDomain=e.target.applicationDomain as ApplicationDomain;
	var swfClass:Class=domain.getDefinition("MainSwf") as Class;
	var swfInstance:Sprite = (new swfClass()) as Sprite;
	swfInstance.x=0;
	this.addChild(swfInstance);
}


function ColorTest(r:uint,g:uint,b:uint) {
	var color:uint;
	//直接用位操作合成颜色
	color=r<<16|g<<8|b;
	trace( "#" + color.toString(16) ); //返回16进制的值，不过该值会忽略前导的0
	//获取颜色分量
	var r:uint = color>>16;
	var g:uint = color>>8 & 0xff;
	var b:uint = color & 0xff;
	trace( "16进制分量还原结果，红：" + r.toString("16") + "，绿：" + g.toString("16") + "，蓝：" + b.toString("16") );

}


var txtClass:Class = getDefinitionByName("flash.text.TextField") as Class;
var txtInstance:TextField = new txtClass() as TextField;
txtInstance.text = "通过反射动态创建的TextField";
addChild(txtInstance);


//如果某对象的一个事件同时添加多个监听，stopPropagation将把该事件注册的所有监听处理函数执行完后，再阻止该事件继续向上冒泡；
//而stopImmediatePropagation方法将本次处理函数执行完后就立即阻止事件继续向上冒泡(即同一事件的其它监听函数将不会执行)。
	_child.addChild(_sub_child);
	addChild(_child);
	_child.addEventListener(MouseEvent.MOUSE_DOWN,childMouseDownHandler);
	//注意：这里同时添加了二个监听，并设置了优点级(subChildMouseDownHandler2的优先级高于subChildMouseDownHandler1)
	_sub_child.addEventListener(MouseEvent.MOUSE_DOWN,subChildMouseDownHandler1,false,1);
	_sub_child.addEventListener(MouseEvent.MOUSE_DOWN,subChildMouseDownHandler2,false,2);
        function subChildMouseDownHandler1(e:MouseEvent):void{
		trace("_sub_child.MOUSE_DOWN_1");
        }
        function subChildMouseDownHandler2(e:MouseEvent):void{
						//_sub_Child上点击输出：_sub_child.MOUSE_DOWN_2，_sub_child.MOUSE_DOWN_1，_child.MOUSE_DOWN
		//e.stopImmediatePropagation(); //_sub_Child上点击输出：_sub_child.MOUSE_DOWN_2
		//e.stopPropagation();		//_sub_Child上点击输出：_sub_child.MOUSE_DOWN_2，_sub_child.MOUSE_DOWN_1
		trace("_sub_child.MOUSE_DOWN_2");
        }
        function childMouseDownHandler(e:MouseEvent):void{
		trace("_child.MOUSE_DOWN");
        }


//flash cs中库元素类导出ButtonPlay
package{
    import flash.display.SimpleButton;
    public class Demo extends MovieClip
    {
	[Embed(source = "skin.swf",symbol = "ButtonPlay")]
	private var ButtonPlay:Class;

        public function Demo(){
		var btnTest2:SimpleButton = new ButtonPlay() as SimpleButton;
		addChild(btnTest2);


//Function的call和apply
	var jimmy:Object = new Object();
	jimmy.addSalary = function(addSalary:uint):void{
		trace("姓名：",this.name,"，原工资：",this.salary,"，新工资：",this.salary + addSalary);
	};

	trace(jimmy.addSalary is Function);	//true
	trace(typeof jimmy.addSalary);		//function

	jimmy.name = "jimmy.yang";
	jimmy.salary = 3000;
	jimmy.addSalary(500);	//姓名： jimmy.yang ，原工资： 3000 ，新工资： 3500

	var mike:Object = new Object();
	mike.name = "Mike";
	mike.salary = 5000;
	jimmy.addSalary.call(jimmy,1000);	//姓名： jimmy.yang ，原工资： 3000 ，新工资： 4000
	jimmy.addSalary.call(mike,1000);	//姓名： Mike ，原工资： 5000 ，新工资： 6000
	jimmy.addSalary.apply(mike,[1100]);	//姓名： Mike ，原工资： 5000 ，新工资： 6100

	_delegate = jimmy.addSalary;
	_delegate.call(mike,1999);	//姓名： Mike ，原工资： 5000 ，新工资： 6999
	_delegate.apply(mike,[2999]);	//姓名： Mike ，原工资： 5000 ，新工资： 7999


//对于不经常用到的事件侦听使用弱引用（addEventListener方法第五个参数设为true）
	this.addEventListener(Event.ADDED_TO_STAGE, onAdded, false, 0, true);

//Embed将绑定的内容转换成“二进制数据”
	[Embed(source="/assets/sample.xml", mimeType="application/octet-stream")]  
	public var xmlCls:Class;
	......
	var byteDataXml:ByteArray = new xmlCls();  
	var xml:XML = XML(byteDataXml.readUTFBytes(byteDataXml.bytesAvailable));  
	trace(xml.toXMLString());


//添加换行进剪贴板中
var str:String = "1111111111";
str +=<![CDATA[
]]>+"2222222222";
System.setClipboard(str);
trace("拷贝至剪贴板中,请粘贴到记事本中查看")