FLEX 深拷贝

<!-- lang: java -->
import mx.utils.ObjectUtil;
			/**
		 * 深层复制数据【不保留类型信息】
		 */	
		protected function Clone(source:Object):*
		{
			var myBA:ByteArray = new ByteArray();
			myBA.writeObject(source);
			myBA.position = 0;
			return(myBA.readObject());
		}
		/**
		 * 深层复制数据【保留类型信息】
		 */		
		public static function Copy(source:ArrayCollection):ArrayCollection
		{  
			if(source == null)  
				return null;  
			
			if(source.length == 0)  
				return new ArrayCollection();  
			
			var item:Object = source.getItemAt(0);  
			// 获取类型名
			var className:String = getQualifiedClassName(item);  
                            // 向运行库注册该类
			registerClassAlias(className,getDefinitionByName(className) as Class);  
			
			return ObjectUtil.copy(source) as ArrayCollection;  
		}