我必须在BUILD方法中读取一个文件,并且我想使用MooseX :: Storage包的load方法.
但是这个load方法创建了一个新对象,因此当我实例化对象时,这不是从文件中读取的对象.在下面的代码中,我创建了一个对象$ m1,状态为2,用于写入文件,我创建了$ m2,没有参数来读取文件,但是$ m2不包含正确的值.包裹:
package mia;
use Moose;
use MooseX::Storage;
with Storage(format => 'JSON', io => 'File');
has 'nome' => ( is => 'rw', isa => 'Str', default =>'',);
has 'stato' => ( is => 'rw', isa => 'Int', default =>1,);
sub BUILD{
my $self=shift;
if ($self->stato==1){
$self=mia->load("mia.dat");
}
if ($self->stato==2){
$self->stato(0);
$self->nome("prova");
$self->store("mia.dat");
}
sub stampa(){
my $self=shift;
print $self->nome." ".$self->stato;
}
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主程序
use mia;
my $m;
$m1=mia->new(stato=>2);
$m2=mia->new();
print "\nm1 \n";
$m1->stampa();
print "\nm2 \n"; …Run Code Online (Sandbox Code Playgroud)