1文件的新建与保存；2基本控件的实用；3对窗口与界面的设计应用；4对操作系统的开发；5制作对话框；6制作显示类应用程序；7对文件操作的开发；8数据库；9制作报表；10编程语句；11制作图形-A new file and save 2 basic control utility 3 on the window and interface design and application 4 on the operating system development 5 production of

我写了一个类，专门用来操作Treeview和数据库，通过数据库中的数据自动添加到Treeview控件中.-I wrote a class specifically designed to operate Treeview and databases, through the data in a database is automatically added to the Treeview control.