The application is in two parts: a simple blogging application that saves the contents of the blog as an XML file and another part that reads the XML file and republishes it as an RSS feed. 应用程序分为两部分:一部分是一个简单的blog应用程序,它将blog的内容保存为XML文件;另一部分读取XML文件,并将其重新发布为RSS提要。