I can get the $testBegin::global but I cannot get the $testEnd::global
my question is that
it seems the test package definition location is the key for this issue.
how perl consider the different order ? why perl can call testEnd::show_me() in main but can't see the $testEnd::global in main ?
there is the code :

#!/usr/bin/perl
use feature qw/say/;
use Data::Dumper;




package testBegin {
   $global = "I'm in the testBegin package global version";
   sub show_me {
       print "$tag: testBegin package $global\n";
   }
}

testBegin::show_me();


print "-"x60;
print "\n";

testEnd::show_me();

package testEnd {
   $global = "I'm in the testEnd package global version";
   sub show_me {
       print "$tag: testEnd package $global\n";
   }
}
[download]

output:
: testBegin package I'm in the testBegin package global version
------------------------------------------------------------
: testEnd package