In Perl, my($array, @array, %array); open(ARRAY, ">file.txt"); opendir(ARRAY, "C:/DIR");
are all different. They are not the same. Thanks, Rex On 8/19/05, Dave Adams <[EMAIL PROTECTED]> wrote: > Dan, > > It appears the $apple->[2] and $apple[2] are not the same thing. > > > #!/usr/bin/perl -w > use strict; > > my $apple = [4,5,6]; #example of a scalar representing an array > > print ref($apple) . $apple->[2] . "\n"; > print ref($apple) . $apple[2] . "\n"; > > > errror msg: > > Global symbol "@apple" requires explicit package name at > F:\perlex\Perl-1.pl line 7. > Execution of F:\perlex\Perl-1.pl aborted due to compilation errors. > > On 8/19/05, Dan Klose <[EMAIL PROTECTED]> wrote: > > Hello again, > > > > for an intriduction to refs check chapter 1 of advance perl programming > > by Srinivasan & O'Reilly Press. Its very quick and very clear. > > > > On Fri, 2005-08-19 at 10:31 -0400, Dave Adams wrote: > > > In the code below, I thought $array[2] and $array->[2] were different > > > but they give me the same result. > > > > > > Any explaination for this? > > > > > Try this: untested - and i don't usually use refs. > > > my @array = (1,2,3); > > my $array_ref = [EMAIL PROTECTED] > > > my $array [EMAIL PROTECTED]; > > #Not sure what this does below. > > > print ref($array); > > print @$array_ref[2]; > > > print $array[2]; > > > print $array->[2]; > > > > > -- > > Daniel Klose > > PhD Student - Taylor Group > > Mathematical Biology > > National Institute for Medical Research > > The Ridgeway > > Mill Hill > > London > > NW7 1AA > > > > > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > <http://learn.perl.org/> <http://learn.perl.org/first-response> > > > -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
