I see. When 'use Config' first, and then in 'package Huang', it must be identified with original path as "$Config::Config". If use '$Config{osname}', it will warn 'Global symbol "%Config" requires explicit package'.

In reply to Re^2: Config::Config{osname} and Config{osname} by PhillipHuang
in thread Config::Config{osname} and Config{osname} by PhillipHuang

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