1#!./perl 2 3print "1..4\n"; 4 5print 1 ? "ok 1\n" : "not ok 1\n"; # compile time 6print 0 ? "not ok 2\n" : "ok 2\n"; 7 8$x = 1; 9print $x ? "ok 3\n" : "not ok 3\n"; # run time 10print !$x ? "not ok 4\n" : "ok 4\n"; 11