来自 XML::Simple 的文档:

The use of this module in new code is discouraged. Other modules are available which provide more straightforward and consistent interfaces. In particular, XML::LibXML is highly recommended.

The major problems with this module are the large number of options and the arbitrary ways in which these options interact - often with unexpected results.

最佳答案

真正的问题是什么XML::Simple主要尝试做的是取 XML，并将其表示为 perl 数据结构。

毫无疑问，您会从 perldata 了解到您可用的两个关键数据结构是 hash和 array .

<xml>
   <parent>
       <child att="some_att">content</child>
   </parent>
   <another_node>
       <another_child some_att="a value" />
       <another_child different_att="different_value">more content</another_child>
   </another_node>
</xml>

$VAR1 = {
          'parent' => {
                      'child' => {
                                 'att' => 'some_att',
                                 'content' => 'content'
                               }
                    },
          'another_node' => {
                            'another_child' => [
                                               {
                                                 'some_att' => 'a value'
                                               },
                                               {
                                                 'different_att' => 'different_value',
                                                 'content' => 'more content'
                                               }
                                             ]
                          }
        };

my $child = $xml -> {parent} -> {child} -> {content};

 my $another_child = $xml -> {another_node} -> {another_child} -> [0] -> {content};

ForceArray => 1, KeyAttr => [], ForceContent => 1

$VAR1 = {
          'another_node' => [
                            {
                              'another_child' => [
                                                 {
                                                   'some_att' => 'a value'
                                                 },
                                                 {
                                                   'different_att' => 'different_value',
                                                   'content' => 'more content'
                                                 }
                                               ]
                            }
                          ],
          'parent' => [
                      {
                        'child' => [
                                   {
                                     'att' => 'some_att',
                                     'content' => 'content'
                                   }
                                 ]
                      }
                    ]
        };

print $xml -> {parent} -> [0] -> {child} -> [0] -> {content};

findnodes("/xml/parent/child"); 

my $xml = XMLin( \*DATA, ForceArray => 1, KeyAttr => [], ForceContent => 1 );

print Dumper $xml;
print $xml ->{parent}->[0]->{child}->[0]->{content};

my $twig = XML::Twig->parse( \*DATA );
print $twig ->get_xpath( '/xml/parent/child', 0 )->text;
print $twig ->root->first_child('parent')->first_child_text('child');

关于xml - 为什么不鼓励 XML::Simple？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33267765/