简单的使用方法如下：

RssBuilder.RssConfigurator configurator = new RssBuilder.RssConfigurator();
  configurator.Title = "My Rss Title";
  configurator.Link = "http://myrss.com";
  configurator.ImageUrl = "http://myrss.com/image.gif";
  configurator.ExpressionDate = "[Date]";
  configurator.ExpressionDescription = "Cost: [Cost]
 Amount: [Amount]";
  configurator.ExpressionLink = "http://myrss.com/?orderId=[OrderID]";
  configurator.ExpressionTitle = "[EmployeeID] - Order [OrderID]";