晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //usr/share/doc/perl-Getopt-Long/examples/skel3.pl
#!/usr/bin/perl -w

# Skeleton for an application using Getopt::Long.

# Author          : Johan Vromans
# Created On      : Tue Sep 15 15:59:04 1992
# Last Modified By: Johan Vromans
# Last Modified On: Fri Jul  9 14:30:13 2010
# Update Count    : 79
# Status          : Unknown, Use with caution!

################ Common stuff ################

use strict;

# Package name.
my $my_package = 'Sciurix';
# Program name and version.
my ($my_name, $my_version) = qw( MyProg 0.01 );

################ Command line parameters ################

my $verbose = 0;		# more verbosity

# Development options (not shown with --help).
my $debug = 0;			# debugging
my $trace = 0;			# trace (show process)
my $test = 0;			# test mode.

# Process command line options.
app_options();

# Post-processing.
$trace |= ($debug || $test);

################ Presets ################

my $TMPDIR = $ENV{TMPDIR} || $ENV{TEMP} || '/usr/tmp';

################ The Process ################

exit 0;

################ Subroutines ################

################ Command Line Options ################

use Getopt::Long 2.34;		# will enable help/version

sub app_options {

    GetOptions(ident	   => \&app_ident,
	       verbose	   => \$verbose,
	       # application specific options go here

	       # development options
	       test	   => \$test,
	       trace	   => \$trace,
	       debug	   => \$debug)
      or Getopt::Long::HelpMessage(2);
}

sub app_ident {
    print STDOUT ("This is $my_package [$my_name $my_version]\n");
}

__END__

=head1 NAME

sample - skeleton for Getopt::Long applications

=head1 SYNOPSIS

sample [options] [file ...]

Options:

   --ident		show identification
   --help		brief help message
   --verbose		verbose information

=head1 OPTIONS

=over 8

=item B<--verbose>

More verbose information.

=item B<--version>

Print a version identification to standard output and exits.

=item B<--help>

Print a brief help message to standard output and exits.

=item B<--ident>

Prints a program identification.

=item I<file>

Input file(s).

=back

=head1 DESCRIPTION

B<This program> will read the given input file(s) and do someting
useful with the contents thereof.

=head1 AUTHOR

Johan Vromans <jvromans@squirrel.nl>

=head1 COPYRIGHT

This programs is Copyright 2006,2003, Squirrel Consultancy.

This program is free software; you can redistribute it and/or modify
it under the terms of the Perl Artistic License or the GNU General
Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.

=cut

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