PlayerPrefs.SetInt("Money", += 1); Please Help!!!

Questions & Answers
1

i dont know how to add some value to int, or format code on this forum

#pragma strict
@script ExecuteInEditMode()

function Start()
  {
  PlayerPrefs.SetInt("Money", += 1);
  }

function OnGUI()
  {
  if(GUI.Button(Rect(450, 140, 160, 40),"Back"))
    {
     PlayerPrefs.Save();
     Application.LoadLevel(0);
    }
  }
2

Get it, add it, save it.