for,foreachとほぼ同じだが変換を明示的にできる #!/usr/bin/perl my %testmap={ 'hoge' => 'A' , 'foo' => 'B' , 'bar' => 'C' }; my @keys=('hoge','foo','bar'); my @result = map { $testmap{$_}; }@keys; print join(',',@result) . '\n'; --- A,B,C