#!/your/perl/here
use strict;
use warnings;

my $rand = rand;

if    ( $rand < rand ) 
{ 
    print "if1:    $rand\n"; 
}
elsif ( $rand < rand ) 
{ 
    print "elsif2: $rand\n"; 
}
else 
{ 
    print "else3:  $rand\n"; 
}

##</code><code>##

elsif ( ( $rand < rand ) { print "elsif2: $rand\n"; }

##</code><code>##

syntax error at C:\if_elsif.pl line 12, near ")
{"

##</code><code>##

elsif ( $rand < _rand ) { print "elsif2: $rand\n"; }

##</code><code>##

Bareword "_rand" not allowed while "strict subs" in use at C:\if_elsif.pl line 7.

##</code><code>##

Argument "_rand" isn't numeric in numeric lt (<) at C:\Perl\perlmonks\if_elsif.pl line 7.