经过这几天的忙碌，我感觉我对2812 的AD 模块又有了一些新的理解，感觉 AD 的框架已经被我架出，现在来说明这几天对其中的理解。- After a busy these days, I feel like I m 2812 AD module has some new understanding, feeling AD framework has been I stand out, now to show understanding of them these days