可以实现静态切分窗口、 直角坐标系、画正弦波、画锯齿波、画矩形波 -Can achieve static segmentation window, right-angle coordinate system, drawing sine, sawtooth painting, painting a rectangle wave

简单的静态窗口切分程序，实现了窗口间的通信。-Simple static window segmentation procedures, to achieve communication between windows.