CSDN 的服务器是怎么了？
很容易的就出现了以下错误.
Server Application Unavailable
The web application you are attempting to access on this web server is currently unavailable. Please hit the "Refresh" button in your web browser to retry your request.
Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur.
其实，偶在用测试ASP.NET程序的时候，也遇到过这样的错误，但一直都没有找到真正解决的办法，希望有高人指点呃。