Control类具有静态只读

The Control class has a static readonly MousePosition property, this gives the mouse coordinates on the screen. You could use this to know where to position the ContextMenu.

从MSDN:

Control.MousePosition属性

Control.MousePosition Property

类型:System.Drawing.Point

Type: System.Drawing.Point

包含坐标的点 鼠标光标相对于 屏幕的左上角.

A Point that contains the coordinates of the mouse cursor relative to the upper-left corner of the screen.