AS3中的深度拷贝

AS3中没有直接提供对象深度拷贝的语法，但却提供了ByteArray对象，可以让我们JAVA中的对象序列化一样，来实现对象的深度拷贝。

<?xml version="1.0" encoding="utf-8"?>   
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="initApp();">   
    <mx:Script>   
        <![CDATA[   
            private var source:Object=new Object();   
               
            private function initApp():void{   
                var obj:Object=new Object();   
                obj.name="sourceValue";   
                this.source=obj;   
                obj.name="changeValue";   
                trace(this.source.name);   
                   
                //output changeValue   
            }   
               
               
            private function initApp():void{   
                var obj:Object=new Object();   
                obj.name="sourceValue";   
                this.source=this.cloneObject(obj);   
                obj.name="changeValue";   
                trace(this.source.name);   
                   
                //output sourceValue   
            }   
               
            private function cloneObject(obj:Object):*{   
                var ba:ByteArray=new ByteArray();   
                ba.writeObject(obj);   
                ba.position=0;   
                return ba.readObject();   
            }   
        ]]>   
    </mx:Script>   
</mx:Application>