image.rb

# coding: utf-8
require 'open-uri'
require 'nokogiri'
require 'pp'

# ./images ディレクトリがなかったら作る
save_dir = 'images'
Dir.mkdir(save_dir) unless File.exists?(save_dir)

doc = Nokogiri::HTML(open('http://blog.livedoor.jp/insidears/archives/52516977.html'))

image_urls = []
doc.css('.main a').each do |link|
  image_urls.push({ :url => link[:href], :title => link[:title] })
end

pp image_urls

image_urls.each_with_index do |image_url,index|
  pp image_url
  image_data = open(image_url[:url])
  File.open("#{save_dir}/#{image_url[:title]}.jpg",'w') do |f|
    f.write image_data.read
  end
end