我正在使用XML :: LibXML,我想添加一条评论,使评论在标签之外。甚至可以把它放在标签之外?我试过appendChild,insertBefore |之后,没有区别......
<JJ>junk</JJ> <!--My comment Here!-->
# Code excerpt from within a foreach loop:
my $elem = $dom->createElement("JJ");
my $txt_node = $dom->createTextNode("junk");
my $cmt = $dom->createComment("My comment Here!");
$elem->appendChild($txt_node);
$b->appendChild($elem);
$b->appendChild($frag);
$elem->appendChild($cmt);
# but it puts the comment between the tags ...
<JJ>junk<!--My comment Here!--></JJ>
答案 0 :(得分:5)
请勿将注释节点附加到$elem
,而是附加到父节点。例如,以下脚本
use XML::LibXML;
my $doc = XML::LibXML::Document->new;
my $root = $doc->createElement("doc");
$doc->setDocumentElement($root);
$root->appendChild($doc->createElement("JJ"));
$root->appendChild($doc->createComment("comment"));
print $doc->toString(1);
打印
<?xml version="1.0"?>
<doc>
<JJ/>
<!--comment-->
</doc>