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20 lines
435 B
Perl
20 lines
435 B
Perl
# In your subroutines, you can access the value of any global variable.
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# A global variable is a variable that is accessible across the entire Perl script.
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# A subroutine can use data set up by other parts of your Perl scripts:
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#!/usr/bin/perl -w
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# Accessing global variables in subroutines.
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$a = 1;
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$b = 4;
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$value = add();
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print "$a plus $b is $value.\n";
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sub add {
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return ($a + $b);
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}
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# sub3.pl |