How to scrape the html in an iframe tag?

How to?
#1

Describe the problem.
the website use an iframe whice has the target html I want to scrape,can it work?

Url: http://www.jsnc.gov.cn/jygg/tzgg/index.html

Sitemap:
{"_id":"s666","startUrl":["http://www.jsnc.gov.cn/jygg/tzgg/index.html"],"selectors":[{"id":"ecl","type":"SelectorElementClick","selector":"iframe#sq","parentSelectors":["_root"],"multiple":true,"delay":"2000","clickElementSelector":"tr:nth-of-type(6) a","clickType":"clickOnce","discardInitialElements":false,"clickElementUniquenessType":"uniqueText"},{"id":"html","type":"SelectorHTML","selector":"iframe.doucument","parentSelectors":["ecl"],"multiple":true,"regex":"","delay":"1000"}]}

#2

Set the iframe as the start URL.

#3

i want to scrape the details from the main page where has a project lists.
set the sart url will only work for one project.
i can use selectelementclick to get the second navigation page,i cannot get the right start url from a ref url in the iframe'attrition

#4

Scrape the list first to get all iframe URLs and then build a sitemap that uses those iframe URLs as start URLs.

#5

now i can finish the first step ,but when i open the
csv file ,the urls are different and so many ,is there any easier ways to import all these urls to the second sitemap'starturl?