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IDispose½Ó¿Ú
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package cwn.core
{
    /*
     * ÊÍ·Å×ÊÔ´½Ó¿Ú
     */
    public interface IDispose
    {
        function Dispose():void;
    }
}
ʵÏÖIDispose½Ó¿Ú
public class ClassA implements cwn.core.IDispose
{
    private var _RefObject:Object;//ÒýÓø߼¶¶ÔÏó
    public function ClassA()
    {
    }
    private var _Disposed:Boolean = false;//ÊÍ·Å¿ØÖƱêÖ¾
    protected function Disposing():void
    {
    }
    public function Dispose():void
    {
        if (_Disposed)
            return;
        Disposing();//ÊÍ·ÅÅÉÉúÀàµÄ×ÊÔ´
        _RefObject = null; //ÊÍ·ÅClassA×ÊÔ´
    }
}
Disposing·½·¨ÊÇÅÉÉúÀàÊÍ·Å×ÊԴʱ°´ÐèÒªÖØÐ´µÄ£¬ÀýÈçÏÂÃæµÄClassB
public class ClassB extends ClassA
{
    private var _RefObject2:Object;
    public function ClassB()
    {
        super();
    }
    override protected function Disposing():void
   


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