if 	($x == 1) { $abc = 1 }
		elsif ($x == 2) { $def = 1 }
		elsif ($x == 3) { $xyz = 1 }
		else 				 { $nothing = 1 }

##</code><code>##

	SWITCH: {
		if ($x == 1)	{ $abc = 1; last SWITCH; };
		if ($x == 2)	{ $def = 1; last SWITCH; };
		if ($x == 3)	{ $xyz = 1; last SWITCH; };
		$nothing = 1;
	}

##</code><code>##

	SWITCH: for ($x) {
		if (1)	{ $abc = 1; last SWITCH; };
		if (2)	{ $def = 1; last SWITCH; };
		if (3)	{ $xyz = 1; last SWITCH; };
		$nothing = 1;
	}