Flash: Enemy Chase Code

import flash.events.Event;

stage.addEventListener(Event.ENTER_FRAME, gameLoop);

function gameLoop(evt:Event)
{
 if(enemy.x < player.x)
{
     enemy.x +=1;
}
if(enemy.x > player.x)
{
     enemy.x -=1;
}
if(enemy.y < player.y)
{
     enemy.y +=1;
}
if(enemy.y > player.y)
{
     enemy.y -=1;
}
}