<pre name="code" class="html"><body class="api jquery listing">
<div id="container">
<div id="content-wrapper" class="clearfix row">
<div class="content-right twelve columns">
<div id="content">
<div class="container fl">
<h1 class="title">产品公告查询接口管理</h1>
<!-- api start -->
<h2 class="subtitle" id="getInfo">查询产品公告详情</h2>
根据body的内容 查找h2标签的@class="subtitle"的值
jrhmpt01:/root# cat yy1.pl
use LWP::UserAgent;
use DBI;
use POSIX;
use Data::Dumper;
use HTML::TreeBuilder;
my $ua = LWP::UserAgent->new;
$ua->timeout(10);
$ua->env_proxy;
$ua->agent("Mozilla/8.0");
use HTML::TreeBuilder::XPath;
$tree= HTML::TreeBuilder::XPath->new;
$tree->parse_file( "ProductForcastController.html");
my @title= $tree->findvalues('/html/body//h2[@class="subtitle"]');
print "\@title is @title\n"
jrhmpt01:/root# perl yy1.pl
@title is 查询产品公告详情 查询产品公告
