程序下方状态栏中记录了鼠标的位置。随着鼠标的移动，下方的数字不断变化，起到了“鼠标追踪”的效果。

代码说明：

程序下方状态栏中记录了鼠标的位置。随着鼠标的移动，下方的数字不断变化，起到了“鼠标追踪”的效果。-Procedures recorded in the status bar below the location of the mouse. With the mouse move, the bottom of the figures are constantly changing, and played a