http://baike.baidu.com/view/67105.htm
http://msdn.microsoft.com/en-us/library/7hs6sw69.aspx
Walkthrough: Building a Basic XML Web Service Using ASP.NET
http://baike.baidu.com/view/67105.htm
http://msdn.microsoft.com/en-us/library/7hs6sw69.aspx
Walkthrough: Building a Basic XML Web Service Using ASP.NET