如何使用HTML::TreeBuilder从html表中提取特定行

//*之间的行表示我想要获取的行.我想使用它中包含的信息.如何在数组中获取该行,以便每个列条目都存储为数组元素.

请大家试着帮助我.

使用HTML :: TableExtract处理HTML文档中的表.这是一个很好的工具.

一个非常基本的例子

use warnings;
use strict;
use feature 'say';

use List::MoreUtils qw(none);
use HTML::TableExtract;

my $file = shift @ARGV;
die "Usage: $0 html-file\n" if not $file or not -f $file;

my $html = do {  # read the whole file into $html string
    local $/;
    open my $fh, '<', $file or die "Can't open $file: $!";
    <$fh>;
};

my $te = HTML::TableExtract->new;
$te->parse($page);

# Print all tables in this html page
foreach my $ts ($te->tables) {
   say "Table (", join(',', $ts->coords), "):";
   foreach my $row ($ts->rows) {
      say "\t", join ',', grep { defined } @$row;
   }
}

# Assume that the table of interest is the second one
my $table = ($te->tables)[1];    
foreach my $row ($table->rows) {
    # Select the row you need; for example, identify distinct text in a cell
    next if none { defined and /Maximum_Capacity/ } @$row;
    say "\t", join ',', grep { defined } @$row;
}

该模块提供了许多方法来设置解析首选项,指定表,检索元素,使用标题等.请参阅文档并搜索此站点以获取相关帖子.

我用none从列表:: MoreUtils测试,如果没有一个列表的元素满足条件.