组合框的下拉列表包含复选框，即可以在一个组合框里动态选择多个表项。,The drop-down list combo box contains check box, that box in a combination of dynamic selection of multiple tables.

ComboTree is a hybrid ComboBox with a tree control replacing the drop down ListBox. Implementing a hierarchy of choices using multiple dependant combo or list boxes can take up a lot of screen space and can be awkward to use. A dropdown tree control

是用自己名字命名的基于对话框MFC程序，实现的功能主要是VC++实验6里面的思考题。有复选框，有下拉列表，有输出对话框。-With their own name dialog-based MFC program' s main function is to VC++ inside Experiment 6 Questions. There are checkboxes, pull-down list, there is an output dialog.