一个双向移动的scroll，响应左右移动的消息，并且能够显示坐标-A two-way movement of the scroll, move left and right response to the message, and can display coordinates

有关鼠标的移动显示当前坐标的小程序,供大家学习共享,不错的-Related to the movement of the mouse display the current coordinates of small procedures, for everybody to learn to share, good