Perl5 リファレンス



       my EXPR

       my EXPR : ATTRIBUTES
               A `my' declares the listed variables to be local
               (lexically) to the enclosing block, file, or
               `eval'.  If more than one value is listed, the
               list must be placed in parentheses.  See the
               Private Variables via my() entry in the perlsub
               manpage for details.


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