Sequence

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In programming languages we have three ways to control the flow of statements: Sequence, Selection and Iteration. Sequence is the simplest and most basic flow control mechanism. It simply means that statements are executed sequentially in the order they appear in the program.

Sequence1.pl

#!/usr/bin/env perl
use utf8;
use strict;
use warnings;

MAIN:
{
	my $x = 1;
	print "x: ", $x, "\n";
	$x = 2;
	print "x: ", $x, "\n";
	$x = 3;
	print "x: ", $x, "\n";
}

Output

$ perl Sequence1.pl x: 1 x: 2 x: 3

perl

Questions

{{Who's on first?}}
{{Who's on second?}}
{{Who's on third?}}

Projects

More ★'s indicate higher difficulty level.

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Football Passer Rating (NFL)
Magic or Math

References

[[Perl Language Reference]]
[[Comprehensive Perl Archive Network (CPAN)]]
[[Beginning Perl]], Simon Cozens
[[Perl Monks Tutorials]]