程序实现的思路是在窗体的MouseDown事件(当鼠标在窗体上按下时发生)中获取鼠标相对于窗体的坐标，在MouseOver事件(当鼠标移动时发生)中获取新的鼠标坐标值，显然这两个坐标值的差加上窗体原来的坐标，就是窗体应该移动到的新的坐标值。然后采用From.Move方法把窗体位置移动到新坐标值处即可。-Realize the idea of the procedures in the form of the MouseDown event (when the mouse in the form when pressed) to obtain the mouse coordinates relative to the form in Mouseover events (when the mouse is when) get a new mouse coordinates Obviously, these two coordinates of poor form coupled with the original coordinates, that is, form should be moved to the new coordinates. From.Move methods and then used to form location to the new Office to coordinate values.