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  1. or download this
    $VAR1 = 'key_2';
$VAR2 = 'value_2';
$VAR3 = 'key_1';
$VAR4 = 'value_1';
  2. or download this
    @VAR = ('key_2', 'value_2', 'key_1', 'value_1');
  3. or download this
    %VAR = ( key_1 => 'value_1', key_2 => 'value_2');
print "value for key 2: '$VAR{key_2}'\n";
__END__
value for key 2: 'value_2'