Fibonacci排列

<script>

function Fibonacci(idx)

{

  if(idx == 0)

    return 0;

  if(idx == 1)

    return 1;

    

  //return Fibonacci(idx - 1) + Fibonacci(idx - 2); the same as following

  return arguments.callee(idx - 1) + arguments.callee(idx - 2);

}

alert(Fibonacci(5));

alert(Fibonacci(10));

</script>