此c程序可以在led点阵上随意地显示，相当于在点阵屏上开了窗口，需要在窗口内显示什么就显示什么，窗口外面可以显示其他的东西，不会相互干扰。-This c program can be optionally displayed on the dot matrix led, equivalent to the dot on the screen to open the window in the window to show what needs to show what, out of a win