個数

require 'net/http'
require 'uri'

def get_url(uri)
  redirect = Net::HTTP.get_response(uri)
  if redirect.code == '302' then
 # return redirect
    str1 = URI.parse(redirect['location']).path
    str2 = File.basename(str1)
    str3 = str1.gsub(/#{str2}\//,"")
    return str3.gsub(/[^0-9]/, "")
  else
    return '0'
  end
end

def corect(uri)
  threads = []
  url_list = []

  100.times do |l|
    threads << Thread.new { url_list << get_url(uri) }
  end

  threads.each(&:join)
  url_list.uniq!
  return url_list.sort
end

target = "https://mangaplay.org/watch/?tour=/vol/"
ta_uri = URI.parse(target)
uniq_list = []

1000.times{
  list = []
  list << corect(ta_uri)
  for v in list do
    for vv in v do  
      if vv != '0' then
        uniq_list << vv
      end
    end
  end
  uniq_list.uniq!
  p uniq_list.length
}
p uniq_list
p uniq_list.length