todaerika.rb

require "rubygems"
require "open-uri"
require "nokogiri"

BASE_URL   = "http://albertayu773.pixnet.net/album/set/14344750"
LINK_XPATH = "//div[@class='thumbList']/ul/li/div/span/a"
IMG_XPATH  = "id('imageFrame')//img"
NEXT_XPATH = "//a[@class='pageNext']"
SLEEP_TIME = 3

page = 1

loop do
  html = Nokogiri::HTML(open("#{BASE_URL}/#{page}"))
  links = html.xpath(LINK_XPATH)

  links.each do |link|
    href = link.attributes["href"]

    photo_page = Nokogiri::HTML(open(href))
    img = photo_page.xpath(IMG_XPATH).first
    puts img.attributes["src"]

    sleep SLEEP_TIME
  end

  if html.xpath(NEXT_XPATH).empty?
    break
  end

  page += 1
end