How to multi line comment? 1

[Kero]

Dear sir,

I'm new perl programmer. So I can't multi line comment in my program. I must use "#" each line. How can I do?
And if I want to know length of array. Example I have data in "@testArray". How can I get length of array?

Thanks for your help,
Kero

 

[sesth]

Perl doesn't support multiline comments. You can use the follwing code:

if (0) {
  ... my code
}

The last element of an array is returned by
$#testArray.

$len = $#testArray + 1;

Thomas

 

[Kero]

It's the best tips for me.
Thanks a lot Thomas. :-D

Kero

 

[toolkit]

Actually, perl does support multiline comments. See the perlpod (Plain Old Documentation) manual pages for more information. An example:

print "hello ";

=pod

This is a comment
And so is this

=cut

print "there\n";

Cheers, Neil

 

[tsdragon]

You can also get the length of an array by using the arrayname in a scalar context:

$len = scalar(@array);

Tracy Dryden
tracy@bydisn.com

http://www.bydisn.com

Meddle not in the affairs of dragons,
For you are crunchy, and good with mustard.

 

[rycamor]

Also, To (mis?) quote Larry Wall, "If your editor can't put a column of sharps on the left margin, then you need real editor." (or words to that effect)

In other words, it's easy if you have an editor that lets you work in column mode; just drag a line down the left side, and hit the # key once.

 

[tsdragon]

My editor (EditPlus) has a command that allows you to highlight a group of lines and prefix them all with one or more comment characters. Tracy Dryden
tracy@bydisn.com

http://www.bydisn.com

Meddle not in the affairs of dragons,
For you are crunchy, and good with mustard.

 

[toolkit]

Rycamor,
vi qualifies as a real editor then - with a little effort ;-)
Neil

 

[MikeLacey]

vi is a real editor for real programmers Mike
michael.j.lacey@ntlworld.com
Email welcome if you're in a hurry or something -- but post in tek-tips as well please, and I will post my reply here as well.