int x = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Size.Width - this.Size.Width - 5;            int y = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Size.Height - this.Size.Height - 5;            this.SetDesktopLocation(x, y);

 

 

注释：

System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Size.Width;   //当前显示器的宽度

System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Size.Height; //当前显示器的高度

this.SetDesktopLocation(x,y); //设置窗体打开后在显示器上的坐标