in reply to About "thread failed to start:"

Why are you using two backslashes? 

     my $thr0 = threads->new(\\&scan, "$net@ip[0..63]", $port);
#                            ^^

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Remove one of them and you'll at least get past the "Not a CODE reference" error.

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Re^2: About "thread failed to start:"
by hxbsy (Novice) on Apr 09, 2015 at 08:10 UTC

    thx
    I'm a beginner of Perl.I made a low mistake

[reply]

      So -- how is it working now?

      Just so you know, you generally double the backslashes when they are inside quotation marks and not double them otherwise.

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