stage.addEventListener(KeyboardEvent.KEY_DOWN,yuan);
function yuan(e:KeyboardEvent):void {
switch (e.keyCode) {
case 37 :
//mc.x-=10; x-=10等于下面的式子mc.x=duo_mc.x-10;
mc.x=mc.x-10;
break;
case 38 :
//mc.y-=10; y-=10等于下面的式子mc.y=duo_mc.y-10;
mc.y=mc.y-10;
break;
case 39 :
//mc.x+=10; x+=10等于下面的式子mc.x=duo_mc.x+10;
mc.x=mc.x+10;
break;
case 40 :
//mc.y+=10; y+=10等于下面的式子mc.y=duo_mc.y+10;
mc.y=mc.y+10;
break;
}
}