//显示对象容器中显示列表的缩进式 trace() 输出
function traceDisplayList(container:DisplayObjectContainer, indentString:String = ""):void {
	var child:DisplayObject;
	for (var i:uint=0; i < container.numChildren; i++) {
		child=container.getChildAt(i);
		trace(indentString, child, child.name);
		if (container.getChildAt(i) is DisplayObjectContainer) {
			traceDisplayList(DisplayObjectContainer(child), indentString + "    ");
		}
	}
}

//替换字符串
var str:String="here is some info '{0}' and {1}";
trace(mx.utils.StringUtil.substitute(str, 15.4, true));
	// "here is some info '15.4' and true"

//事件调度
addEventListener("complete", completeHandler);
function completeHandler(event:Event):void {
	trace(event);
}
dispatchEvent(new Event("complete"));


//数组对象深复制
import flash.utils.ByteArray;
function clone(source:Object):* {
	var myBA:ByteArray = new ByteArray();
	myBA.writeObject(source);
	myBA.position = 0;
	return(myBA.readObject());
}

//显示对象容器中显示列表的缩进式 trace() 输出
function traceDisplayList(container:DisplayObjectContainer,indentString:String = ""):void {
	var child:DisplayObject;
	for (var i:uint=0; i < container.numChildren; i++) {
		child = container.getChildAt(i);
		trace(indentString, child, child.name);
		if (container.getChildAt(i) is DisplayObjectContainer) {
			traceDisplayList(DisplayObjectContainer(child), indentString + "    ");
		}
	}
}

//元素类型int，ture表示数组固定长度为5不可更改
var square_commands:Vector.<int> = new Vector.<int>(5,true);

//杂点效果，草地效果
var bd:BitmapData = new BitmapData(250, 250,false, 0xff000000); 
bd.noise(500, 0, 255, BitmapDataChannel.GREEN,false); 
var img:Bitmap = new Bitmap(bd); 
addChild(img);

//视频播放
var nc:NetConnection = new NetConnection(); 
nc.connect(null); 
var ns:NetStream = new NetStream(nc); 
ns.client = {
	"onMetaData":function (infoObject:Object):void{trace("metadata");},
	"onCuePoint":function (infoObject:Object):void{trace("cuepoint");}
} 
ns.play("video.flv"); 
var vid:Video = new Video(); 
vid.attachNetStream(ns); 
addChild(vid);


//双点号(..)，又称为后裔访问符(the descendent accessor),访问当前元素的所有子元素
//双冒号(::)，命名空间名称限定符（双冒号）name qualifier punctuator 


//阻止再冒泡
function p2(event:MouseEvent):void {
	trace("t2 click");
	event.stopPropagation(); 
}
t1.t2.addEventListener(MouseEvent.CLICK, p2);


//ComboBox 组件
var aCb:ComboBox = new ComboBox(); 
aCb.dropdownWidth = 210;			//下拉列表宽度
aCb.prompt = "San Francisco Area Universities";	//提示信息
aCb.addEventListener(Event.CHANGE, changeHandler); 
function changeHandler(event:Event):void { 
    trace( ComboBox(event.target)==aCb )	//true
    aCb.selectedIndex = -1;			//显示提示 prompt
}


//修改舞台上组件的样式
import fl.managers.StyleManager; 
import fl.controls.Button; 
var tf:TextFormat = new TextFormat(); 
tf.color = 0xFF0000; 
StyleManager.setComponentStyle(Button, "textFormat", tf);	//修改舞台上所有button组件的样式
StyleManager.setStyle("textFormat", tf);			//修改舞台上所有组件的样式