in reply to string to expression

Maybe you just want eval? Consider:

use strict;
use warnings;

my @operators = qw(+ - * /);
my $expression = (int rand(100)) . $operators[int rand(4)] . (int rand
+(100));
my $answer = eval $expression;
print "$expression = $answer";

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Prints (for example):

78+63 = 141

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DWIM is Perl's answer to Gödel

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Re^2: string to expression
by xiaoyafeng (Deacon) on Jan 10, 2007 at 04:51 UTC
    Great!! eval looks like a best way! Thank you! I'm going to read perlfunc.

    btw.any other tutorial for eval?
    I am trying to improve my English skills, if you see a mistake please feel free to reply or /msg me a correction
[reply]
      Tutorial? eval EXPR runs Perl code. Any Perl code. 78+63 happens to be valid Perl. (For that reason, you'd be better with liverpole's dispatch table.)
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