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-Archive-Zip/examples/ziptest.pl
#!/usr/bin/perl -w
# $Revision: 1.7 $
# Lists the zipfile given as a first argument and tests CRC's.
# Usage:
#	perl ziptest.pl zipfile.zip

use strict;

use Archive::Zip qw(:ERROR_CODES :CONSTANTS);

package CRCComputingFileHandle;
use Archive::Zip::MockFileHandle;

use vars qw( @ISA );
@ISA = qw( Archive::Zip::MockFileHandle );

my $crc;

sub writeHook {
    my $self   = shift;
    my $bytes  = shift;
    my $length = length($bytes);
    $crc = Archive::Zip::computeCRC32($bytes, $crc);
}

sub resetCRC { $crc = 0 }

sub crc { $crc }

package main;

die "usage: $0 zipfile.zip\n"
  if (scalar(@ARGV) != 1);

my $zip    = Archive::Zip->new();
my $status = $zip->read($ARGV[0]);
exit $status if $status != AZ_OK;

print " Length    Size         Last Modified         CRC-32  Name\n";
print "-------- --------  ------------------------  -------- ----\n";

my $fh = CRCComputingFileHandle->new();
my @errors;

foreach my $member ($zip->members()) {
    my $compressedSize = $member->compressedSize();
    $fh->resetCRC();
    $member->desiredCompressionMethod(COMPRESSION_STORED);
    $status = $member->extractToFileHandle($fh);
    exit $status if $status != AZ_OK;
    my $crc = $fh->crc();

    my $ct = scalar(localtime($member->lastModTime()));
    chomp($ct);

    printf(
        "%8d %8d  %s  %08x %s\n",
        $member->uncompressedSize(),
        $compressedSize, $ct, $member->crc32(), $member->fileName());

    if ($member->crc32() != $crc) {
        push(
            @errors,
            sprintf(
                "Member %s CRC error: file says %08x computed: %08x\n",
                $member->fileName(), $member->crc32(), $crc
            ));
    }
}

if (scalar(@errors)) {
    print join("\n", @errors);
    die "CRC errors found\n";
} else {
    print "All CRCs check OK\n";
}

haha - 2025