c# 模拟鼠标移动

 [Flags]
 public enum MouseEventFlag : uint
 {
     Move = 0x0001,
     MoveTo = 0x0200,
     LeftDown = 0x0002,
     LeftUp = 0x0004,
     RightDown = 0x0008,
     RightUp = 0x0010,
     MiddleDown = 0x0020,
     MiddleUp = 0x0040,
     XDown = 0x0080,
     XUp = 0x0100,
     Wheel = 0x0800,
     VirtualDesk = 0x4000,
     Absolute = 0x8000
 }

 [DllImport("user32.dll")]
 static extern void mouse_event(MouseEventFlag flags, int dx, int dy, uint data, UIntPtr extraInfo);

 mouse_event(MouseEventFlag.LeftDown, 0, 0, 0, UIntPtr.Zero);
 mouse_event(MouseEventFlag.Absolute | MouseEventFlag.Move, X * 65536 / screenWidth, Y * 65536 / screenHeight, 0, UIntPtr.Zero);
 mouse_event(MouseEventFlag.LeftUp, 0, 0, 0, UIntPtr.Zero);

        其中X、Y是鼠标移动目标点的横坐标和纵坐标；screenWidth、screenHeight是显示屏幕宽度和高度。标志位为MouseEventFlag.Absolute:dx和dy指定鼠标坐标系统中的一个绝对位置，在鼠标坐标系统中，屏幕在水平和垂直方向上均匀分割成65535×65535个单元。目标点在屏幕上横坐标和纵坐标需要转化为鼠标坐标系统中的横坐标和纵坐标。