我试图遍历多个数组元素,并且基于数组,我尝试使用相应的值打印每个元素。
@_disk = ('0:0','0:1');
@_diskStatus= ('OK','Critical');
以下是我的尝试,我不确定如何使用条件来获得所需的输出:
foreach (@_diskID, @_diskStatus)
{
# Print the data in JSON
print "\t,\n" if not $_first;
$_first = 0;
print "\t{\n";
print "\t\t\"{#DISKID}\":\"$_\"\n";
print "\n\t}\n";
}
print "\n\t]\n";
print "}\n";
期望的输出
{
"data":[
{
"{#DISKID}":" 0:0"
}
,
{
"{#STATUS}":" Ok"
}
,
{
"{#DISKID}":" 0:1"
}
,
{
"{#STATUS}":" Critical"
}
]
}
答案 0 :(得分:3)
如果两个数组的大小始终相同,则循环数组的索引比实际元素更简单。
# only need one array here because they are the same size
foreach my $i ( 0 .. $#_diskID ) {
...
}
此外,没有必要在Perl中建立这样的JSON字符串,CPAN上有一个名为JSON
的好模块,它可以从哈希创建它们。
所以,知道这一点你就可以简单地创建一个哈希:
use strict;
use warnings;
use JSON;
my @_disk = ('0:0','0:1');
my @_diskStatus= ('OK','Critical');
my %json_hash = ( data => [] );
foreach my $i ( 0 .. $#_disk ) {
push @{$json_hash{data}},
{ '{#DISKID}' => $_disk[$i],
'{#STATUS}' => $_diskStatus[$i],
};
}
my $json_string = encode_json \%json_hash;
print "$json_string\n";
# prints
# {"data":[{"{#STATUS}":"OK","{#DISKID}":"0:0"},{"{#DISKID}":"0:1","{#STATUS}":"Critical"}]}
答案 1 :(得分:1)
假设两个数组具有相同数量的元素:
use warnings;
use strict;
my @_disk = ('0:0','0:1');
my @_diskStatus = ('OK','Critical');
for my $i (0 .. $#_disk) {
print "$_disk[$i] $_diskStatus[$i]\n";
}