31 lines
375 B
Perl
31 lines
375 B
Perl
#!/usr/bin/env perl
|
|
use strict;
|
|
use warnings;
|
|
|
|
|
|
my $num = 4000 / 7;
|
|
print "$num\n";
|
|
|
|
print int($num + 0.005) . "\n";
|
|
|
|
printf("%.3f\n", $num);
|
|
|
|
printf("00%.3f\n", $num);
|
|
|
|
|
|
sub show_signed {
|
|
my ($num) = @_;
|
|
if ($num gt 0) {
|
|
printf("+%.3f\n", $num);
|
|
} else {
|
|
printf("%.3f\n", $num);
|
|
}
|
|
}
|
|
|
|
show_signed($num);
|
|
show_signed($num - 1000);
|
|
|
|
|
|
1;
|
|
__END__
|