2d top down player movement

hi guy um a bit a go i posted a tread about a 2d topdown movement script i mead and it dint work so i went and mead this

public class playermovement : MonoBehaviour {

public float speed;

void Update () {

if (Input.GetKey (KeyCode.D)) {
transform.Translate (Vector2.right * speed);

}
if (Input.GetKey (KeyCode.A)) {
transform.Translate (-Vector2.right * speed);

}
if (Input.GetKey (KeyCode.W)) {
transform.Translate (Vector2.up * speed);

}
if (Input.GetKey (KeyCode.S)) {
transform.Translate (-Vector2.up * speed);

}


}
}


and this allow me to play the game with out a error but the player just dusent move wut so ever
i have made 2 scrips now for player movemint and both dont work

 

Did you give speed a value in the editor?

 

yes i did im get rilly rilly mad that i cant get a top down player movement script to work for my socil mmo project