VC++设置和获得一组单选按钮的选中状态，比较基础的示例。-VC++ settings and get a group of radio buttons selected, relatively basic example, Oh, master, skip it, in this case is designed to allow novice to master the layout of radio buttons on the form, if you get selected radio the value of the box, it is relatively simple, but complex procedures are based on the function of the slowly expanding.