Extract a particular table from multi-table html file using perl [closed]

余生长醉 提交于 2020-01-11 14:46:14

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.



来源:https://stackoverflow.com/questions/13038441/extract-a-particular-table-from-multi-table-html-file-using-perl

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