See vars. The way to make a global variable known to Perl without prefixing its full name is:

use strict;
use vars qw($HELLO);

$HELLO = 'Hello';

sub new_message {
    $HELLO = 'Nihao';
};

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In reply to Re: Defining global variable in a subroutine by Corion
in thread Defining global variable in a subroutine by bihuboliya

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