我试图生成散列的列表,使用下面的脚本与用户交互的数组时:错误访问哈希
use strict;
use warnings;
my $KEY_1 = "one";
my $KEY_2 = "two";
sub generateHash{
my ($value1, $value2) = (@_);
$value2 = $value1 + 5.0;
my %hash = {};
$hash{$KEY_1} = $value1;
$hash{$KEY_2} = $value2;
return %hash;
}
print "Num: \n";
my $number = <>;
my @hashes =();
my %new_hash = {};
for (my $i = 1; $i < $number + 1; $i = $i + 1) {
print "Enter the values $i \n";
print "value 1: ";
my $value1= <>;
print "\nvalue 2: ";
my $value2= <>;
chomp $value1;
chomp $value2;
%new_hash = generateHash($value1, $value2);
push (@hashes, %new_hash);
print "@hashes\n";
}
my %test = $hashes[0];
my @keys = keys %test;
my @values = values %test;
print "@keys\n";
print "@values\n";
当我尝试执行程序,它提出了一些相关的错误访问数组中的哈希时使用引用。我错过了一些东西,但我看不到是什么,我想知道我在哪里访问哈希引用。谢谢你在前进,连接从运行的输出:
Num:
1
Reference found where even-sized list expected at generate_hashes.pl line 21, <> line 1.
Enter the values 1
value 1: 1
value 2: 1
Reference found where even-sized list expected at generate_hashes.pl line 12, <> line 3.
Use of uninitialized value $hashes[1] in join or string at generate_hashes.pl line 32, <> line 3.
HASH(0x2587a88) one 1 two 6
Odd number of elements in hash assignment at generate_hashes.pl line 34, <> line 3.
HASH(0x2587a88)
Use of uninitialized value $values[0] in join or string at generate_hashes.pl line 38, <> line 3.
'my @foo =();我的%bar =();'是多余的。你可以写'我的@foo;我的%吧;'而是。 – melpomene
非常感谢,它现在有效。没有意识到我正在用大括号初始化参考。我现在看到的事情更清晰:)并感谢提议使用Dumper。 – Hellzzar