Extract a particular table from multi-table html f

问题:

I have a html file with three tables. But I want to extract only one table of the three. How do I do this?

回答1:

A good module for extracting parts of a HTML document is HTML::Query.

It provides a jQuery-like interface for selecting what part of a document to extract.

回答2:

You can do this using known Perl modules like :

• LWP
• WWW::Mechanize
• HTML::TreeBuilder
• HTML::TreeBuilder::XPath

All are on http://search.cpan.org

The last Perl module is really usefull, you can use Xpath expressions like :

//table[0]/tr[3]/td[2]/text()

by example, to print the text of the second td element in the third tr from the first table.