use Exporter; is the same as BEGIN { require Exporter; Exporter->import(); }

Please don't treat this as homework.

Maybe you should treat this as homework.

use
require
Exporter

It's not that I don't want to help you, it's that your question is awfully vague.

In reply to Re: uses of Exporter, @EXPORT by ikegami
in thread uses of Exporter, @EXPORT by l.frankline

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