Sorry about the last one. I wrote some test & somehow it flipped away!
The following script meant to calculate simple math drills, such as 5 *
9 or 4 + 3, written in one line. What I cannot comprehend is the lines
marked with ---. What do they do? Why is there a "0 < index..."
Oh, it all makes sense now......... what are you going on about man?
> Hi,
>
>
$line = <STDIN>;
chomp $line;
$first_space = index($line , " ");
$a = substr($line, 0, $first_space);
$last_space = rindex($line , " ");
$b = substr($line, $last_space+1);
--- if (0 < index($line, "*")) {
print $a * $b, "\n";
}
--- if (0 < index($line, "+")) {
print $a + $b, "\n";
}
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