本代码用于汽车电子指南针的方向指引，已商用化，声明：本代码仅供参考学习，若产生产权纠纷，本人不承担一切法律责任。谢谢合作！-Direction for automotive electronic compass guidelines have been commercialized, the statement of the code for reference study, if the generated property disputes, I do not assume all lega