此软件要在独立的服务器或个人电脑上运行，软件运行后，每隔30分钟会自动去每个指定的网站上查找最新的更新记录，如果是新记录就会自动存入数据库，对每个网站上的网页不会重复抓取，第一次抓取过，第二次就不会再抓取。-The software to run on a separate server or personal computer, the software runs, every 30 minutes will automatically go to each specified site to find the latest update records, if the new record will be automatically deposited in the , for each Web pages on the site will not repeat the crawl, the first crawl, the second will not crawl.