Flex字符串去重

字符串去重。

var str:String = "->a->b->a->c->d->d";

protected function splitString(str:String):void
{
     var originalStr:Array = str.split('->');
     var resLs:ArrayCollection = new ArrayCollection();
     for(var i:int=0;i<originalStr.length;i++){
        if(!resLs.contains(originalStr[i])){
        resLs.addItem(originalStr[i]);
        }
    }
  
}