perl 类里的函数调用其他类的函数:

package Horse;

use base qw(Critter);

sub new {

my $invocant = shift;

my $class = ref($invocant) || $invocant;

my $self = {

color => "bay",

legs => 4,

owner => undef,

@_, # 覆盖以前的属性

};

return bless $self, $class;

#return  $self;

};

sub sum1 {

       $self=shift;

       my $a=shift;

       my $b=shift;

       return $a + $b + 7;

};

our @arr=qw/1 2 3 4 5 6 7/;

our %h1=(1,2,3,4,5,6,7,8);

1;

[root@wx03 test]# cat Critter.pm

package Critter;

unshift(@INC,"/root/test");

use message;

sub new {

    my $self = {};

    my $invocant = shift;

my $class = ref($invocant) || $invocant;

	my ($name)=@_;

      my $self = {

         "name" =>$name

                 };

    bless $self, $class; # Use class name to bless() reference

    return $self;

};

sub sum2 {

       $self=shift;

       my $a=shift;

       my $b=shift;

       return $a + $b;

};

sub fun1 {

       $self=shift;

       message::message($self);

};

sub on_receive_msg:lvalue{

      $self=shift;

      $self->{name}="aabbccdd123141242";

      $self->{on_receive_msg};

};

our $str="12312";

1;

[root@wx03 test]# cat message.pm

package message;

sub message {

my $self=shift;

  $self->{color}="q3szczxcae2";

return "message 31313131\n";

};

1;

[root@wx03 test]# cat t10.pl

unshift(@INC,"/root/test");

use Horse;;

use Critter;

my $ua=Horse->new();

print $ua->fun1();

print $ua->{color};

print "\n";

[root@wx03 test]# perl t10.pl

message 31313131

q3szczxcae2