基于XML得通讯簿，语言是VB.NET,开发平台是 VS.NET ，全部源代码都在里面-in XML-based address book, the language is VB.NET, is VS.NET development platform, all of the source code inside

名片管理程序，对于联系人的资料进行增删改查的相关操作。-directory management programme