append.t

早期freebsd实现

#!./perl

# $Header: append.t,v 4.0 91/03/20 01:51:23 lwall Locked $

print "1..3\n";

$a = 'ab' . 'c';	# compile time
$b = 'def';

$c = $a . $b;
print "#1\t:$c: eq :abcdef:\n";
if ($c eq 'abcdef') {print "ok 1\n";} else {print "not ok 1\n";}

$c .= 'xyz';
print "#2\t:$c: eq :abcdefxyz:\n";
if ($c eq 'abcdefxyz') {print "ok 2\n";} else {print "not ok 2\n";}

$_ = $a;
$_ .= $b;
print "#3\t:$_: eq :abcdef:\n";
if ($_ eq 'abcdef') {print "ok 3\n";} else {print "not ok 3\n";}