Question: How to express the source code of the 24 solar terms in the correspondence letter?

Long summer: = filter (month = 5 and (day = 6 or day = 8), 2);

Xiaoman: = filter (month = 5 and (day = 20 or day = 22), 2);

Granularity: = filter (month = 6 and (day = 5 or day = 7), 2);

Summer solstice: = filter (month = 6 and (day = 20 or day = 22), 2);

Summer: = filter (month = 7 and (day = 6 or day = 8), 2);

General Department: = filter (month = 7 and (day = 22 or day = 24), 2);

Beginning of autumn: = filter (month = 8 and (day = 7 or day = 9), 2);

Summer: = filter (month = 8 and (day = 22 or day = 24), 2);

Millennium:= filter(month = 9 and(day = 7 or day = 9。