用菜单调用绘制圆、矩形、回弹球菜单，在窗口中绘制出这三个图形，同时完成用菜单调用模态对话框和非模态对话框功能。-Rendering using the menu called yen, rectangular, pinball back to the menu in the window to map out the three graphics, at the same time using the menu called modeless dialog and non-modal dialo