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Counter.pm |
package Counter; require Exporter; @ISA = qw(Exporter); sub new { my ($package, $startvalue, $increment) = @_; $startvalue = 0 unless defined $startvalue; $increment = 1 unless defined $increment; my ($self) = bless { value => $startvalue, incr => $increment}, $package; return $self; } sub inc { my ($self) = @_; $self->{value} += $self->{incr}; return $self; } sub dec { my ($self) = @_; $self->{value} -= $self->{incr}; return $self; } sub val { my ($self) = @_; return $self->{value}; } 1; |
Copyright © 1996, 1998, 1999, 2000 Andreas Borchert, in HTML konvertiert am 07.02.2000 |