AS3的splice

package{
    import com.ainy.Applyfn;
    import com.ainy.xmlbyte.Bytes2Xml;
    import com.ainy.xmlbyte.Xml2Bytes;
    import com.ds.comm.MyDictionary;
                                                                                                      
    import flash.display.Sprite;
    import flash.text.TextField;
    import flash.utils.Dictionary;
                                                                                                      
    public class myTest extends Sprite{
//      private var myDictionary : MyDictionary;
//      public var $myText : TextField;
        public function myTest(){
            trace("原始数据");
            this.pointMy();
            this.$spliceVec.splice(-1,1);
            trace("最新数据");
            this.pointMy();
        }
                                                                                                          
        private var $spliceVec : Vector.<String> = new <String>[
            "Kayer",
            "Aonaufly",
            "Kevvy",
            "Zone",
            "Ainy"
        ];
                                                                                                          
        private function pointMy() : void{
            var $index : uint = 0;
            for each(var $itemName : String in $spliceVec){
                $index += 1;
                trace($index +" 号 Name is "+$itemName);
            }
        }
    }
}