Make 4 Keys do the same thing?

Questions & Answers
1

How can I change this pile of code to a smaller one with less work if I want to change something?

function Update () 
{
if (Input.GetKey(KeyCode.W))
{
Move();
}
}
{
if (Input.GetKey(KeyCode.A))
{
Move();
}
}
{
if (Input.GetKey(KeyCode.S))
{
Move();
}
}
{
if (Input.GetKey(KeyCode.D))
{
Move();
}
}

I meanlike Input.GetKey (W,A,S,D)

2

|| means “or”:

function Update ()
{
  if (Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.S) || Input.GetKey(KeyCode.D))
  {
    Move();
  }
}