> > 4)my $mean = do { my $s; $s += $_ for @data; $s /
> > @data };
Hi,
I never see the usage of "for" like this before. Is it
equal to the following? And where can I find some more
like this?
my $s;
for(@data){$s += $_ ;}
my $mean=$s/@data;
Thanks,
Li
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