DB<157> @age = ( ["amy", 35], ["bill", 55], ["george", 28], ["jason",71]);
 => (["amy", 35], ["bill", 55], ["george", 28], ["jason", 71])

  DB<158> sub personel::sortAge { sort { $b->[1] <=> $a->[1] } @_}

  DB<159> personel::sortAge @age
 => (["jason", 71], ["bill", 55], ["amy", 35], ["george", 28])