Probably it is better to simply use split, so that you don't need to worry about things like the format of the number.

use strict;
use warnings;

my ($A, $B, $C, $D);
while (<DATA>) {
    chomp;
    my @parts = split /\|/;
    print "\$$parts[0] = $parts[1]\n";
    eval("\$$parts[0] = $parts[1]");
}
print "$A\n";
print "$B\n";
print "$C\n";
print "$D\n";

__DATA__
A|-10
B|20_000
C|20.1234
D|2E-3

[download]

Then you can do whatever you want with those variables.

In reply to Re: How do read the varibles from a files and do some calculation by pg
in thread How do read the varibles from a files and do some calculation by Anonymous Monk

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