with a little math you could
switch ((button * 10) + (switch == HIGH) ? 1:0) {
case (120):
lcd.print("1"); button=0; //print then clear button to 0
break;
case (101):
lcd.print("2"); button=0; //print then clear button to 0
break;
default:
// hop up and down because there is nothing here to do
break;