习鞘5-5.txt

< linux网络编程工具>>配套源码

$a = 123;
$b = 456;
print $a + $b, "\n";
print $a . $b, "\n";
$a = 321;
$b = 4;
print $a * $b."\n";     
print $a x $b."\n";     
print 2 * 3 * 4, "\n";
print 2 ** 3 ** 4, "\n";
print 2 != 3 != 4, "\n";
print ($b += 2) *= 3, "\n";
print $b += 2, "\n";