本文例出了7个最初学习ASP.net的时候常会遇到的问题，并做了简单解答：1，关于ref与out的区别;2，在堆上运行跟在栈上运行有什么区别;3，frameset 和 iframe 的区别;4，sprintf、wsprintf、printf的区别;5，Server.transfer 和response.redirect的区别;6，Page.RegisterStartupscript 和response.write 的区别;7，class 和struct的区别。

The page cannot be found

The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

---

Please try the following:

• Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
• If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
• Click the Back button to try another link.

HTTP Error 404 - File or directory not found.
Internet Information Services (IIS)

---

Technical Information (for support personnel)

• Go to  and perform a title search for the words HTTP and 404.
• Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Web Site Setup, Common Administrative Tasks, and About Custom Error Messages.