use E::C::Kernel; E::C::Kernel->say('foo'); use E::C::Kernel qw/say/; say 'foo'; E::C::Kernelをsingletonにして use E::C::Kernel; #my $k = E::C::Kernel->new; my $k = E::C::Kernel->instance; $k->say('foo'); $k->print('bar'); $k->printf('%s',…