此程序基于VC6.0，有树形控件以及列表控件，此外还有划尺、进度条、旋转按钮以及编辑框等控件的运用-This program is based on VC6.0, tree controls, and list controls, in addition to the use of zoned ruler, progress bar, spin buttons, as well as edit box control

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