[原创]这是一个使用Direct2D编写的分类动画演示程序，你可以通过按下键盘数字键的1-9来产生9种不同的目标，然后这些目标会自动移动到归类的位置，过多的物体还会在新物体到来时自动移除。适合做一些分类检测算法的界面。注意：Direct2D无法在XP下运行。-[Original] This is a free animation program written using Direct2D, you can press the keyboard number keys 1-9 to generate 9 different objects. These objects will be automatically moved to the target position, the abandoned objects will be automatically removed if there are too much new objects. Suitable for the detection and classification algorithm user interface. Note: Direct2D can not run under XP. Please use Win7 or above