use CGI qw(:all);
my $cgi = CGI->new;

##</code><code>##

# import CGI's functions into my namespace
use CGI qw(:all);

print header, start_html( ... ), h1('HTML Body'), end_html;

##</code><code>##

use CGI;

# access CGI's functions as object methods
my $cgi = CGI->new;

print $cgi->header ... (yadda yadda)