employee2.pm

PERL语言资料 可以用于PERL程序设计

#!/usr/bin/perl
# Fig. 14.9: Employee2.pm
# Implementation of class Employee2.

package Employee2;

use strict;
use warnings;
use Date;

sub new
{
   my $object = shift();
   my $class = ref( $object ) || $object;
   
   my $self = { firstName => shift(),
                lastName => shift(), };
   
   my $hireDay = new Date;

   if ( $_[ 0 ] ) {
      my ( $month, $day, $year ) = split( /\//, $_[ 0 ] );
      $hireDay->day( $day );
      $hireDay->month( $month );
      $hireDay->year( $year );
   }

   $self->{ hireDay } = $hireDay;

   bless( $self, $class );
   return $self;
}

sub firstName
{
   my $self = shift();
   
   $self->{ firstName } = shift() if ( @_ );
   
   return $self->{ firstName };
}

sub lastName
{
   my $self = shift();
   
   $self->{ lastName } = shift() if ( @_ );
   
   return $self->{ lastName };
}

sub hireDay
{
   my $self = shift();

   if ( @_ ) {
      $self->{ hireDay }->setDate( @_ );
   }
   else {
      $self->{ hireDay }->print();
   }
}

sub write
{
   my $self = shift();

   print( "Hello, my name is ", $self->firstName, ".\n" );
   print( "I was hired on " );
   $self->hireDay();
   print( ".\n" );
}

return 1;

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