使用严格和警告获取列表错误

Question

运行在同一目录中的文件列表上运行的 Perl 脚本会列出更改列表，它对我来说很好，但目前，我必须在 sun Solaris 10 上使用该脚本，但我收到了以下警告：

在 /usr/perl5/5.8.4/lib/sun4-solaris-64int/Convert/ASN1/_decode.pm 第 58 行使用未初始化的长度值。

在 /usr/perl5/5.8.4/lib/sun4-solaris-64int/Convert/ASN1/_encode.pm 第 60 行的连接 (.) 或字符串中使用未初始化的值。

在搜索之后我发现了一些东西说 use strict 和 use warnings 但是当我进行更改时它返回以下错误：

全局符号“@files”在 ./5th_edit.pl 处需要明确的包名称

第 14 行。全局符号“@dirs”需要在 ./5th_edit.pl 第 15 行。

#!/usr/bin/perl -w

use strict;
use warnings;

use TAP3::Tap3edit;
use Data::Dumper;



printDir(".");
sub printDir{
opendir(DIR, $_[0]);
local(@files);
local(@dirs);
 (@files) = readdir(DIR);
 foreach $file (@files) {
    if (-f $file and substr($file,0,2) eq "CD" ) {


     my $tap3 = TAP3::Tap3edit->new;

     my $tap_file = $file;
$tap3->decode($tap_file)  or  die $tap3->error; 

my $struct=$tap3->structure;
my $Tracker = $struct->{'transferBatch'};
if (defined $Tracker){

    my $rectag = $struct->{'transferBatch'}->{'networkInfo'}->{'recEntityInfo'};

    map { $_->{'recEntityType'} = 4 if ( $_->{'recEntityType'} > 6) } @$rectag;

    my $calleventtag = $struct->{'transferBatch'}->{'callEventDetails'};

    my @indexes = reverse (grep { exists $calleventtag->[$_]->{'supplServiceEvent'} } 0..$#$calleventtag);

    my $sup_event_cnt = $#indexes;

    foreach my $index (@indexes)
    {
    splice (@$calleventtag , $index,1);
    }

    my $total_events_cnt = $struct->{'transferBatch'}->{'auditControlInfo'}->{'callEventDetailsCount'};
    $struct->{'transferBatch'}->{'auditControlInfo'}->{'callEventDetailsCount'} = $total_events_cnt - $sup_event_cnt-1;

    if ( exists $struct->{'transferBatch'}->{'batchControlInfo'}->{'operatorSpecInformation'} )
        {
            delete $struct->{'transferBatch'}->{'batchControlInfo'}->{'operatorSpecInformation'};
        }
    if ( exists $struct->{'transferBatch'}->{'auditControlInfo'}->{'operatorSpecInformation'} )
        {
            delete $struct->{'transferBatch'}->{'auditControlInfo'}->{'operatorSpecInformation'};
        }

my $key;

# Will scan all the calls for MOC's and GPRS.
foreach $key ( @{$struct->{'transferBatch'}->{'callEventDetails'} } ) {

    foreach ( keys %{$key} ) {

        if ( $_ eq "mobileOriginatedCall" )
        {

            if ( exists $calleventtag->[$_]->{'mobileOriginatedCall'}->{'basicCallInformation'}->{'destinationNetwork'} )
            {
                delete $calleventtag->[$_]->{'mobileOriginatedCall'}->{'basicCallInformation'}->{'destinationNetwork'};
            }

            if ( exists $calleventtag->[$_]->{'mobileOriginatedCall'}->{'basicCallInformation'}->{'chargeableSubscriber'}->{'simChargeableSubscriber'}->{'msisdn'} 
            && $calleventtag->[$_]->{'mobileOriginatedCall'}->{'basicCallInformation'}->{'chargeableSubscriber'}->{'simChargeableSubscriber'}->{'msisdn'} !~ m/^1299/ 
            )
            {
                delete $calleventtag->[$_]->{'mobileOriginatedCall'}->{'basicCallInformation'}->{'chargeableSubscriber'}->{'simChargeableSubscriber'}->{'msisdn'};
            }

            if ( exists $calleventtag->[$_]->{'mobileOriginatedCall'}->{'camelServiceUsed'}  
            && $calleventtag->[$_]->{'mobileOriginatedCall'}->{'camelServiceUsed'}->{'camelServiceKey'} != 80
            )
            {
                delete $calleventtag->[$_]->{'mobileOriginatedCall'}->{'camelServiceUsed'};
            }

        }

        if ( $_ eq "gprsCall" )
        {

            if ( exists $calleventtag->[$_]->{'gprsCall'}->{'gprsBasicCallInformation'}->{'gprsDestination'}->{'accessPointNameOI'} )
            {
                delete $calleventtag->[$_]->{'gprsCall'}->{'gprsBasicCallInformation'}->{'gprsDestination'}->{'accessPointNameOI'};
            }

        }

    }
}


    $tap3->encode("$tap_file")  or  die $tap3->error; 
}    

    }

 } 

 closedir(DIR);
}

Answer 1

使用my 而不是local 初始化@files 和@dirs 变量。

my @files;
my @dirs;

What is the difference between my and local in Perl?