说明： 一个功能齐全，简单实用的实用xml做数据文件的留言本程序。
(a full range of functions, simple and practical to do practical xml data files left by the procedure.)
文件列表：
xmlguest
........\AssemblyInfo.cs,2102,2003-03-12
........\bin
........\...\XMLGuest.dll,9216,2005-11-08
........\...\XMLGuest.pdb,30208,2005-11-08
........\db
........\..\db.xml,1358,2005-11-08
........\Global.asax,75,2003-03-12
........\Global.asax.cs,1195,2003-03-12
........\Global.asax.resx,1733,2001-09-20
........\MessageAdd.aspx,2289,2005-11-08
........\MessageAdd.aspx.cs,2945,2005-11-08
........\MessageAdd.aspx.resx,1733,2001-09-20
........\MessageList.aspx,2696,2005-11-08
........\MessageList.aspx.cs,1606,2005-11-08
........\MessageList.aspx.resx,1733,2001-09-20
........\Web.config,2985,2003-03-12
........\WebForm1.aspx,781,2003-03-13
........\WebForm1.aspx.cs,1063,2003-03-13
........\WebForm1.aspx.resx,1733,2001-09-20
........\XMLGuest.csproj,6785,2005-11-08
........\XMLGuest.csproj.webinfo,114,2005-11-08
........\XMLGuest.sln,938,2005-11-08
........\XMLGuest.vsdisco,319,2003-03-12
