二十四节气的C语言算法

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【算法】二十四节气的C语言算法 2009-05-27 23:12

二十四节气是我国劳动人民创造的辉煌文化，它能反映季节的变化，指导农事活动，影响着千家万户的衣食住行。有人认为二十四节气从属农历，其实，它是根据阳历划定的。即根据太阳在黄道上的位置，把一年划分为２４个彼此相等的段落。也就是把黄道分成２４个等份，每等份各占黄经15°。由于太阳通过每等份所需的时间几乎相等，二十四节气的公历日期每年大致相同：上半年在６日、２１日前后，下半年在８日、２３日前后。

节气需要存表，没有固定规律，数据来源别人的VB程序，查询程序是自己写的。如下：

/**************************************************************************************************************************** 函数功能：二十四节气数据库

入口参数： unsigned char(yy,mo,dd) 对应年月日出口参数： unsigned char(0-24) 1-24对应二十四节气作者： TOTOP

二十四节气数据库（1901--2050）数据格式说明: 如1901年的节气为

1月 2月 3月 4月 5月 6月 7月 8月 9月 10月 11月 12月

[ 6,21][ 4,19][ 6,21][ 5,21][ 6,22][ 6,22][ 8,23][ 8,24][ 8,24][ 8,24][ 8,23][ 8,22]

[ 9, 6][11, 4][ 9, 6][10, 6][ 9, 7][ 9, 7][ 7, 8][ 7, 9][ 7, 9][ 7, 9][ 7, 8][ 7,15]

上面第一行数据为每月节气对应公历日期,15减去每月第一个节气,每月第二个节气减去15得第二

行，这样每月两个节气对应数据都小于16,每月用一个字节存放,高位存放第一个节气数据,低位存

放第二个节气的数据,可得下表

****************************************************************************************************************************/ uchar code jieqi_code[]= {

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1901

0x96,0xA4,0x96,0x96,0x97,0x87,0x79,0x79,0x79,0x69,0x78,0x78, //1902

0x96,0xA5,0x87,0x96,0x87,0x87,0x79,0x69,0x69,0x69,0x78,0x78, //1903

0x86,0xA5,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x78,0x87, //1904

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1905

0x96,0xA4,0x96,0x96,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1906

0x96,0xA5,0x87,0x96,0x87,0x87,0x79,0x69,0x69,0x69,0x78,0x78, //1907

0x86,0xA5,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1908

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1909

0x96,0xA4,0x96,0x96,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1910

0x96,0xA5,0x87,0x96,0x87,0x87,0x79,0x69,0x69,0x69,0x78,0x78, //1911

0x86,0xA5,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1912

0x95,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1913

0x96,0xB4,0x96,0xA6,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1914

0x96,0xA5,0x97,0x96,0x97,0x87,0x79,0x79,0x69,0x69,0x78,0x78, //1915

0x96,0xA5,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1916

0x95,0xB4,0x96,0xA6,0x96,0x97,0x78,0x79,0x78,0x69,0x78,0x87,

//1917

0x96,0xB4,0x96,0xA6,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x77, //1918

0x96,0xA5,0x97,0x96,0x97,0x87,0x79,0x79,0x69,0x69,0x78,0x78, //1919

0x96,0xA5,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1920

0x95,0xB4,0x96,0xA5,0x96,0x97,0x78,0x79,0x78,0x69,0x78,0x87, //1921

0x96,0xB4,0x96,0xA6,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x77, //1922

0x96,0xA4,0x96,0x96,0x97,0x87,0x79,0x79,0x69,0x69,0x78,0x78, //1923

0x96,0xA5,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1924

0x95,0xB4,0x96,0xA5,0x96,0x97,0x78,0x79,0x78,0x69,0x78,0x87, //1925

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1926

0x96,0xA4,0x96,0x96,0x97,0x87,0x79,0x79,0x79,0x69,0x78,0x78, //1927

0x96,0xA5,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1928

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1929

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1930

0x96,0xA4,0x96,0x96,0x97,0x87,0x79,0x79,0x79,0x69,0x78,0x78, //1931

0x96,0xA5,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1932

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1933

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1934

0x96,0xA4,0x96,0x96,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1935

0x96,0xA5,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1936

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1937

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1938

0x96,0xA4,0x96,0x96,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78,

//1939

0x96,0xA5,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1940

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1941

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1942

0x96,0xA4,0x96,0x96,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1943

0x96,0xA5,0x96,0xA5,0xA6,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1944

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1945

0x95,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x78,0x69,0x78,0x77, //1946

0x96,0xB4,0x96,0xA6,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1947

0x96,0xA5,0xA6,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //1948

0xA5,0xB4,0x96,0xA5,0x96,0x97,0x88,0x79,0x78,0x79,0x77,0x87, //1949

0x95,0xB4,0x96,0xA5,0x96,0x97,0x78,0x79,0x78,0x69,0x78,0x77, //1950

0x96,0xB4,0x96,0xA6,0x97,0x97,0x79,0x79,0x79,0x69,0x78,0x78, //1951

0x96,0xA5,0xA6,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //1952

0xA5,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1953

0x95,0xB4,0x96,0xA5,0x96,0x97,0x78,0x79,0x78,0x68,0x78,0x87, //1954

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1955

0x96,0xA5,0xA5,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //1956

0xA5,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1957

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1958

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1959

0x96,0xA4,0xA5,0xA5,0xA6,0x96,0x88,0x88,0x88,0x78,0x87,0x87, //1960

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87,

//1961

0x96,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1962

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1963

0x96,0xA4,0xA5,0xA5,0xA6,0x96,0x88,0x88,0x88,0x78,0x87,0x87, //1964

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1965

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1966

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1967

0x96,0xA4,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //1968

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1969

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1970

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x79,0x69,0x78,0x77, //1971

0x96,0xA4,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //1972

0xA5,0xB5,0x96,0xA5,0xA6,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1973

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1974

0x96,0xB4,0x96,0xA6,0x97,0x97,0x78,0x79,0x78,0x69,0x78,0x77, //1975

0x96,0xA4,0xA5,0xB5,0xA6,0xA6,0x88,0x89,0x88,0x78,0x87,0x87, //1976

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //1977

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x78,0x87, //1978

0x96,0xB4,0x96,0xA6,0x96,0x97,0x78,0x79,0x78,0x69,0x78,0x77, //1979

0x96,0xA4,0xA5,0xB5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //1980

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x77,0x87, //1981

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1982

0x95,0xB4,0x96,0xA5,0x96,0x97,0x78,0x79,0x78,0x69,0x78,0x77,

//1983

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x87, //1984

0xA5,0xB4,0xA6,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //1985

0xA5,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //1986

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x79,0x78,0x69,0x78,0x87, //1987

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //1988

0xA5,0xB4,0xA5,0xA5,0xA6,0x96,0x88,0x88,0x88,0x78,0x87,0x87, //1989

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x79,0x77,0x87, //1990

0x95,0xB4,0x96,0xA5,0x86,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1991

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //1992

0xA5,0xB3,0xA5,0xA5,0xA6,0x96,0x88,0x88,0x88,0x78,0x87,0x87, //1993

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1994

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x76,0x78,0x69,0x78,0x87, //1995

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //1996

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //1997

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //1998

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //1999

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //2000

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //2001

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //2002

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //2003

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //2004

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87,

//2005

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2006

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x69,0x78,0x87, //2007

0x96,0xB4,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x87,0x78,0x87,0x86, //2008

0xA5,0xB3,0xA5,0xB5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //2009

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2010

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x78,0x87, //2011

0x96,0xB4,0xA5,0xB5,0xA5,0xA6,0x87,0x88,0x87,0x78,0x87,0x86, //2012

0xA5,0xB3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x87, //2013

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2014

0x95,0xB4,0x96,0xA5,0x96,0x97,0x88,0x78,0x78,0x79,0x77,0x87, //2015

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x87,0x88,0x87,0x78,0x87,0x86, //2016

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x87, //2017

0xA5,0xB4,0xA6,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2018

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x79,0x77,0x87, //2019

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x86, //2020

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //2021

0xA5,0xB4,0xA5,0xA5,0xA6,0x96,0x88,0x88,0x88,0x78,0x87,0x87, //2022

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x79,0x77,0x87, //2023

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x96, //2024

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //2025

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //2026

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87,

//2027

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x96, //2028

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //2029

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //2030

0xA5,0xB4,0x96,0xA5,0x96,0x96,0x88,0x78,0x78,0x78,0x87,0x87, //2031

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x96, //2032

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x86, //2033

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x78,0x88,0x78,0x87,0x87, //2034

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2035

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x96, //2036

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x86, //2037

0xA5,0xB3,0xA5,0xA5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //2038

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2039

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x96, //2040

0xA5,0xC3,0xA5,0xB5,0xA5,0xA6,0x87,0x88,0x87,0x78,0x87,0x86, //2041

0xA5,0xB3,0xA5,0xB5,0xA6,0xA6,0x88,0x88,0x88,0x78,0x87,0x87, //2042

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2043

0x95,0xB4,0xA5,0xB4,0xA5,0xA6,0x97,0x87,0x87,0x88,0x87,0x96, //2044

0xA5,0xC3,0xA5,0xB4,0xA5,0xA6,0x87,0x88,0x87,0x78,0x87,0x86, //2045

0xA5,0xB3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x88,0x78,0x87,0x87, //2046

0xA5,0xB4,0x96,0xA5,0xA6,0x96,0x88,0x88,0x78,0x78,0x87,0x87, //2047

0x95,0xB4,0xA5,0xB4,0xA5,0xA5,0x97,0x87,0x87,0x88,0x86,0x96, //2048

0xA4,0xC3,0xA5,0xA5,0xA5,0xA6,0x97,0x87,0x87,0x78,0x87,0x86,

//2049

0xA5,0xC3,0xA5,0xB5,0xA6,0xA6,0x87,0x88,0x78,0x78,0x87,0x87, //2050 };

unsigned char jieqi (unsigned char yy,mo,dd) {

unsigned char temp,y,d,m; int addr;

d =dd; m =mo; y = yy-1901; addr=y*12+m-1; if(d<15) {

temp=15-d;

if((jieqi_code[addr]>>4)==temp) return (m<<1-1); else return (0); }

if(d==15) return (0); if(d>15) {

temp=d-15;

if((jieqi_code[addr]&0x0f)==temp) return (m<<1); else return (0); } }

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