Re^3: the variable is lost

I only see 19 lines of code. Which line is #38?

Update: Thanks for clarifying your code now.

Your while loop is reading <$fh> into $_, which is clobbering your foreach loop's version of $_. Since the topic variable in a foreach loop aliases the elements you're iterating over (ie, $a and $b), clobbering $_ clobbers $a and $b.

Use an explicitly named topic variable for your foreach loop.

Dave

Comment on Re^3: the variable is lost

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Re^4: the variable is lost by cruise (Acolyte) on Mar 09, 2012 at 08:42 UTC
thanks for your help~~~~ i have already know what's wrong with me	[reply]
Re^4: the variable is lost by cruise (Acolyte) on Mar 09, 2012 at 08:26 UTC
i have update my full code ^_^ it is only comment	[reply]
Re^5: the variable is lost by davido (Cardinal) on Mar 09, 2012 at 08:32 UTC
See my update above, and implement the advice by applying the following change: `foreach my $filename ( $a, $b ) { open my $fh, '<', $filename or die $!;` [download] Dave	[reply] [d/l]