what does (??{$1*$2}) means? Thanks.
on 2020/1/9 12:49, Joseph He wrote:
I think $str =~ /(\d+)\s(\d+)\s(??{$1*$2})/ should do it My Perl version is v5.26.1
what does (??{$1*$2}) means? Thanks.
on 2020/1/9 12:49, Joseph He wrote:
I think $str =~ /(\d+)\s(\d+)\s(??{$1*$2})/ should do it My Perl version is v5.26.1