本程序基于vc6.0，主要实用到了组合框列表框，编辑框，在控件之间互加文本，实现全部删除，选定删除，以及滑动条，其位置可相应显示在静态文本框中-The program based vc6.0, practical to a combo box, list box, edit box interaction between controls plus text, delete all selected to delete, and slider, its position correspondin