원 사각형 라운드사각형 그리는 방법

var btnMy:Sprite = new Sprite();
btnMy.graphics.beginFill(0xDDDDDD);
btnMy.graphics.lineStyle(3, 0x000000);
// 원
// btnMy.graphics.drawCircle(0,0,100);
// 사각형
// btnMy.graphics.drawRect(0,0,100,100);
// 라운드사각형
// btnMy.graphics.drawRoundRect(0,0,100,100,5,5);
btnMy.graphics.endFill();
addChild(btnMy);
 
btnMy.addEventListener(MouseEvent.CLICK, btnMyClickHandler);
 
function btnMyClickHandler(e:MouseEvent):void {
    txtMy.text = "원/사각형/라운드사각형"; 
}