说明：  PIC18F66K80中文手册，这个是官方根据2011年的英文版本翻译而来，共628页，相当准确。希望给英语不好的同学带来方便。
(Pic18f66k80 Chinese manual, which is officially translated from the English version of 2011, has 628 pages, which is quite accurate. Hope to bring convenience to the students who are not good at English.)