create a script for moving a 2d player in unity with the zqsd keys

void Update()
{
    if (Input.GetKeyDown("Z"))
    {
        transform.Translate(Vector3.up * Time.deltaTime);
    }
    if (Input.GetKeyDown("S"))
    {
        transform.Translate(Vector3.down * Time.deltaTime);
    }
    if (Input.GetKeyDown("Q"))
    {
        transform.Translate(Vector3.left * Time.deltaTime);
    }
    if (Input.GetKeyDown("D"))
    {
        transform.Translate(Vector3.right * Time.deltaTime);
    }
}