万年历的完整算法。它首先计算出对应阳历月第一天对应是星期几，然后根据数据压缩算法确定，确定对应的阴历日期；而阴历节气，则有条件规律算法实现。-Calendar complete algorithm. It first calculated the solar calendar the corresponding counterparts on the first day of the week, and then determine the data compression algorithm