问ActionScript中的抗锯齿htmlText？

EN

        var tf : TextField = new TextField();
        tf.selectable = false;
        tf.width = w;
        tf.height = h;

        tf.autoSize = TextFieldAutoSize.LEFT;
        tf.antiAliasType = AntiAliasType.ADVANCED;
        tf.gridFitType = GridFitType.PIXEL;
        tf.wordWrap = true;
        tf.multiline = true;
        tf.embedFonts = true;

        var tff : TextFormat = new TextFormat();
        tff.font = "Myriad Pro";
        tf.defaultTextFormat = tff;

        tf.styleSheet = _styles;

        var myFont:Font = new Font1();

        quote = new TextField();
        quote.selectable = false;
        quote.embedFonts = true;
        quote.antiAliasType = flash.text.AntiAliasType.ADVANCED;

        quote.htmlText = "<a href='http://www.google.com/'><u>google</u></a>";

        tf = new TextFormat();
        tf.font = myFont.fontName;
        tf.size = 24;
        tf.color = 0xffffff;
        tf.align = "center";

        quote.setTextFormat(tf);