此程序利用MFC的画笔画出一个小球，并且实现小球按照四种规定的方式运动（可选），最后运用Measurement studio控件将小球的运动轨迹描绘出来。-This program utilizes the MFC brush to draw a small ball and small ball in accordance with the four way movement (optional), and finally use Measurement studio control ball