flash builder的第一个as工程

http://jingyan.baidu.com/album/9f63fb918889c0c8400f0ee5.html?picindex=2

代码如下：

package
{
	import flash.display.Sprite;
	import flash.text.TextField;
	import flash.text.TextFieldAutoSize;
	import flash.text.TextFormat;
	
	public class HelloWorldWeb extends Sprite
	{
		public function HelloWorldWeb()
		{
			alpha.toFixed(0);
			trace("helloworld");
			
			var infoText:TextField = new TextField();
			infoText.autoSize = TextFieldAutoSize.LEFT;
			infoText.background = true;
			infoText.border = true;
			var format:TextFormat = new TextFormat();
			format.font = "宋体";
			format.color = 0xFF0000;
			format.size = 24;
			infoText.defaultTextFormat = format;
			infoText.text = "你创建了个纯as项目";
			infoText.x = (this.stage.stageWidth - infoText.width) / 2;
			infoText.y = (this.stage.stageHeight - infoText.height) / 2;
			addChild(infoText);
		}
	}
}