Re: [PerlChina] About required parameters in sub

perldoc perlsub

search for prototype.

2010/8/2 <ppstay@hotmail.com>

I saw someone uses the following syntax to define a subroutine:

 

sub SubName($$;$;$)

 

which means there are 2 required parameters? and the rest 2 are optional? I did a search but didn't find it. Anyone could give me a link?

 

Thanks in advance!

 

Andy

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