geo::ip模块，这个模块连给的样子都报错，具体如下
代码
use Geo::IP;
>
>
> my $gi = Geo::IP->open("/opt/www/my/cgi-bin/GeoLiteCity.dat",
> GEOIP_STANDARD);
> my $r = $gi->record_by_name("123.125.50.22");
> print $record->country_code,
> $record->country_code3,
> $record->country_name,
> $record->region,
> $record->region_name,
> $record->city,
> $record->postal_code,
> $record->latitude,
> $record->longitude;
>
错误提示：
Can't call method "country_code" on an undefined value at getcity.pl line
18.
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