一.Image在窗体上拖拽,势必会用到鼠标的三个事件(MouseDown,MouseUp,MouseMove),以左键为例,PictureBox为载体 Point mouseDownPoint = new Point(); //记录拖拽过程鼠标位置 bool isMove = false; //判断鼠标在picturebox上移动时,是否处于拖拽过程(鼠标左键是否按下) private void pictureBox1_MouseDown(object sender, MouseEventArg…