simple question

Just start learn Perl..

I try this:

Code:

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$in1=<STDIN>;
$in2=<STDIN>;

$x1=$in1==$in2;
print("$x1");

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Question:
enter 1 and 1, I got 1;
but enter 1 and 2, I got nothing, suppose to be 0, right?

The value it holds is actually false. False can also be represented by a null string. Convert it to an integer and you'll see 0:

$x1 = (integer) ($in1 == $in2);

Quote:

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Originally Posted by visualAd

The value it holds is actually false. False can also be represented by a null string. Convert it to an integer and you'll see 0:

$x1 = (integer) ($in1 == $in2);

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Thank you!