ruby爬虫

require 'open-uri'

url = "http://cstest.scu.edu.cn"

open(url) do |page|
	page_content = page.read()
	links = page_content.scan(/<a href=\"(.*?)\"/).flatten
	links.each {|link| puts url+'/'+link}
end

　- -还不会。。。先写个简单的