Learning Perl Objects, References amp;amp; Modules [Electronic resources] نسخه متنی

12.4 A More Typical Object-Oriented Module: Math::BigInt

So as
not to get dismayed about how
"un-OO" the
File::Spec module might be, let's
look at yet another core module, Math::BigInt:

use Math::BigInt;
my $value = Math::BigInt->new(2); # start with 2
$value->bpow(1000);               # take 2**1000
print $value->bstr(  ), "\n";       # print it out

Here, nothing is imported. The entire
interface calls class methods such as new against
the class name to create instances, and then calls instance methods
against those instances.