package { import flash.display.Sprite; import flash.text.TextField; import flash.text.TextFieldAutoSize; public class MyTextField extends Sprite { public function MyTextField(){ var fld:TextField = new TextField(); fld.text = "楽しいActionScriptの世界へ"; fld.x = 100; fld.y = 50; fld.autoSize = TextFieldAutoSize.LEFT; fld.border = true; fld.borderColor = 0xFF0000; addChild(fld); } } } TextField_autoSize