公历转农历C程序

注意只能到2049年！

 

#define uchar unsigned char
#define uint unsigned int
#include <intrins.h>
/*
公历年对应的农历数据,每年三字节,
格式第一字节BIT7-4 位表示闰月月份,值为0 为无闰月,BIT3-0 对应农历第1-4 月的大小
第二字节BIT7-0 对应农历第5-12 月大小,第三字节BIT7 表示农历第13 个月大小
月份对应的位为1 表示本农历月大(30 天),为0 表示小(29 天)
第三字节BIT6-5 表示春节的公历月份,BIT4-0 表示春节的公历日期
*/
code uchar year_code[597]={
                    0x04,0xAe,0x53,    //1901 0
                    0x0A,0x57,0x48,    //1902 3
                    0x55,0x26,0xBd,    //1903 6
                    0x0d,0x26,0x50,    //1904 9
                    0x0d,0x95,0x44,    //1905 12
                    0x46,0xAA,0xB9,    //1906 15
                    0x05,0x6A,0x4d,    //1907 18
                    0x09,0xAd,0x42,    //1908 21
                    0x24,0xAe,0xB6,    //1909
                    0x04,0xAe,0x4A,    //1910
                    0x6A,0x4d,0xBe,    //1911
                    0x0A,0x4d,0x52,    //1912
                    0x0d,0x25,0x46,    //1913
                    0x5d,0x52,0xBA,    //1914
                    0x0B,0x54,0x4e,    //1915
                    0x0d,0x6A,0x43,    //1916
                    0x29,0x6d,0x37,    //1917
                    0x09,0x5B,0x4B,    //1918
                    0x74,0x9B,0xC1,    //1919
                    0x04,0x97,0x54,    //1920
                    0x0A,0x4B,0x48,    //1921
                    0x5B,0x25,0xBC,    //1922
                    0x06,0xA5,0x50,    //1923
                    0x06,0xd4,0x45,    //1924
                    0x4A,0xdA,0xB8,    //1925
                    0x02,0xB6,0x4d,    //1926
                    0x09,0x57,0x42,    //1927
                    0x24,0x97,0xB7,    //1928
                    0x04,0x97,0x4A,    //1929
                    0x66,0x4B,0x3e,    //1930
                    0x0d,0x4A,0x51,    //1931
                    0x0e,0xA5,0x46,    //1932
                    0x56,0xd4,0xBA,    //1933
                    0x05,0xAd,0x4e,    //1934
                    0x02,0xB6,0x44,    //1935
                    0x39,0x37,0x38,    //1936
                    0x09,0x2e,0x4B,    //1937
                    0x7C,0x96,0xBf,    //1938
                    0x0C,0x95,0x53,    //1939
                    0x0d,0x4A,0x48,    //1940
                    0x6d,0xA5,0x3B,    //1941
                    0x0B,0x55,0x4f,    //1942
                    0x05,0x6A,0x45,    //1943
                    0x4A,0xAd,0xB9,    //1944
                    0x02,0x5d,0x4d,    //1945
                    0x09,0x2d,0x42,    //1946
                    0x2C,0x95,0xB6,    //1947
                    0x0A,0x95,0x4A,    //1948
                    0x7B,0x4A,0xBd,    //1949
                    0x06,0xCA,0x51,    //1***
                    0x0B,0x55,0x46,    //1951
                    0x55,0x5A,0xBB,    //1952
                    0x04,0xdA,0x4e,    //1953
                    0x0A,0x5B,0x43,    //1954
                    0x35,0x2B,0xB8,    //1955
                    0x05,0x2B,0x4C,    //1956
                    0x8A,0x95,0x3f,    //1957
                    0x0e,0x95,0x52,    //1958
                    0x06,0xAA,0x48,    //1959
                    0x7A,0xd5,0x3C,    //1960
                    0x0A,0xB5,0x4f,    //1961
                    0x04,0xB6,0x45,    //1962
                    0x4A,0x57,0x39,    //1963
                    0x0A,0x57,0x4d,    //1964
                    0x05,0x26,0x42,    //1965
                    0x3e,0x93,0x35,    //1966
                    0x0d,0x95,0x49,    //1967
                    0x75,0xAA,0xBe,    //1968
                    0x05,0x6A,0x51,    //1969
                    0x09,0x6d,0x46,    //1970
                    0x54,0xAe,0xBB,    //1971
                    0x04,0xAd,0x4f,    //1972
                    0x0A,0x4d,0x43,    //1973
                    0x4d,0x26,0xB7,    //1974
                    0x0d,0x25,0x4B,    //1975
                    0x8d,0x52,0xBf,    //1976
                    0x0B,0x54,0x52,    //1977
                    0x0B,0x6A,0x47,    //1978
                    0x69,0x6d,0x3C,    //1979
                    0x09,0x5B,0x50,    //1980
                    0x04,0x9B,0x45,    //1981
                    0x4A,0x4B,0xB9,    //1982
                    0x0A,0x4B,0x4d,    //1983
                    0xAB,0x25,0xC2,    //1984
                    0x06,0xA5,0x54,    //1985
                    0x06,0xd4,0x49,    //1986
                    0x6A,0xdA,0x3d,    //1987
                    0x0A,0xB6,0x51,    //1988
                    0x09,0x37,0x46,    //1989
                    0x54,0x97,0xBB,    //1990
                    0x04,0x97,0x4f,    //1991
                    0x06,0x4B,0x44,    //1992
                    0x36,0xA5,0x37,    //1993
                    0x0e,0xA5,0x4A,    //1994
                    0x86,0xB2,0xBf,    //1995
                    0x05,0xAC,0x53,    //1996
                    0x0A,0xB6,0x47,    //1997
                    0x59,0x36,0xBC,    //1998
                    0x09,0x2e,0x50,    //1999 294
                    0x0C,0x96,0x45,    //2000 297
                    0x4d,0x4A,0xB8,    //2001
                    0x0d,0x4A,0x4C,    //2002
                    0x0d,0xA5,0x41,    //2003
                    0x25,0xAA,0xB6,    //2004
                    0x05,0x6A,0x49,    //2005
                    0x7A,0xAd,0xBd,    //2006
                    0x02,0x5d,0x52,    //2007
                    0x09,0x2d,0x47,    //2008
                    0x5C,0x95,0xBA,    //2009
                    0x0A,0x95,0x4e,    //2010
                    0x0B,0x4A,0x43,    //2011
                    0x4B,0x55,0x37,    //2012
                    0x0A,0xd5,0x4A,    //2013
                    0x95,0x5A,0xBf,    //2014
                    0x04,0xBA,0x53,    //2015
                    0x0A,0x5B,0x48,    //2016
                    0x65,0x2B,0xBC,    //2017
                    0x05,0x2B,0x50,    //2018
                    0x0A,0x93,0x45,    //2019
                    0x47,0x4A,0xB9,    //2020
                    0x06,0xAA,0x4C,    //2021
                    0x0A,0xd5,0x41,    //2022
                    0x24,0xdA,0xB6,    //2023
                    0x04,0xB6,0x4A,    //2024
                    0x69,0x57,0x3d,    //2025
                    0x0A,0x4e,0x51,    //2026
                    0x0d,0x26,0x46,    //2027
                    0x5e,0x93,0x3A,    //2028
                    0x0d,0x53,0x4d,    //2029
                    0x05,0xAA,0x43,    //2030
                    0x36,0xB5,0x37,    //2031
                    0x09,0x6d,0x4B,    //2032
                    0xB4,0xAe,0xBf,    //2033
                    0x04,0xAd,0x53,    //2034
                    0x0A,0x4d,0x48,    //2035
                    0x6d,0x25,0xBC,    //2036
                    0x0d,0x25,0x4f,    //2037
                    0x0d,0x52,0x44,    //2038
                    0x5d,0xAA,0x38,    //2039
                    0x0B,0x5A,0x4C,    //2040
                    0x05,0x6d,0x41,    //2041
                    0x24,0xAd,0xB6,    //2042
                    0x04,0x9B,0x4A,    //2043
                    0x7A,0x4B,0xBe,    //2044
                    0x0A,0x4B,0x51,    //2045
                    0x0A,0xA5,0x46,    //2046
                    0x5B,0x52,0xBA,    //2047
                    0x06,0xd2,0x4e,    //2048
                    0x0A,0xdA,0x42,    //2049
                    
};
///月份数据表
code uchar day_code1[9]={0x0,0x1f,0x3b,0x5a,0x78,0x97,0xb5,0xd4,0xf3};
code uint day_code2[3]={0x111,0x130,0x14e};
/*
函数功能:输入BCD阳历数据,输出BCD阴历数据(只允许1901-2099年)
调用函数示例:Conversion(c_sun,year_sun,month_sun,day_sun)
如:计算2004年10月16日Conversion(0,0x4,0x10,0x16);
c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世
纪,c_sun=1为19世纪
调用函数后,原有数据不变,读c_moon,year_moon,month_moon,day_moon得出阴历BCD数据
*/
bit c_moon;
data uchar year_moon,month_moon,day_moon,week;
/*子函数,用于读取数据表中农历月的大月或小月,如果该月为大返回1,为小返回0*/
bit get_moon_day(uchar month_p,uint table_addr)
{
uchar temp;
    switch (month_p){
        case 1:{temp=year_code[table_addr]&0x08;
             if (temp==0)return(0);else return(1);}
        case 2:{temp=year_code[table_addr]&0x04;
             if (temp==0)return(0);else return(1);}
        case 3:{temp=year_code[table_addr]&0x02;
             if (temp==0)return(0);else return(1);}
        case 4:{temp=year_code[table_addr]&0x01;
             if (temp==0)return(0);else return(1);}
        case 5:{temp=year_code[table_addr+1]&0x80;
             if (temp==0) return(0);else return(1);}
        case 6:{temp=year_code[table_addr+1]&0x40;
             if (temp==0)return(0);else return(1);}
        case 7:{temp=year_code[table_addr+1]&0x20;
             if (temp==0)return(0);else return(1);}
        case 8:{temp=year_code[table_addr+1]&0x10;
             if (temp==0)return(0);else return(1);}
        case 9:{temp=year_code[table_addr+1]&0x08;
             if (temp==0)return(0);else return(1);}
        case 10:{temp=year_code[table_addr+1]&0x04;
             if (temp==0)return(0);else return(1);}
        case 11:{temp=year_code[table_addr+1]&0x02;
             if (temp==0)return(0);else return(1);}
        case 12:{temp=year_code[table_addr+1]&0x01;
             if (temp==0)return(0);else return(1);}
        case 13:{temp=year_code[table_addr+2]&0x80;
             if (temp==0)return(0);else return(1);}
    }
}

/*
函数功能:输入BCD阳历数据,输出BCD阴历数据(只允许1901-2099年)
调用函数示例:Conversion(c_sun,year_sun,month_sun,day_sun)
如:计算2004年10月16日Conversion(0,0x4,0x10,0x16);
c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世
纪,c_sun=1为19世纪
调用函数后,原有数据不变,读c_moon,year_moon,month_moon,day_moon得出阴历BCD数据
*/
void Conversion(bit c,uchar year,uchar month,uchar day)
{                         //c=0 为21世纪,c=1 为19世纪 输入输出数据均为BCD数据
    uchar temp1,temp2,temp3,month_p;
    uint temp4,table_addr;
    bit flag2,flag_y;
    temp1=year/16;   //BCD->hex 先把数据转换为十六进制
    temp2=year%16;
    year=temp1*10+temp2;
    temp1=month/16;
    temp2=month%16;
    month=temp1*10+temp2;
    temp1=day/16;
    temp2=day%16;
    day=temp1*10+temp2;

    //定位数据表地址
    if(c==0){                  
        table_addr=(year+0x64-1)*0x3;
    }
    else {
        table_addr=(year-1)*0x3;
    }
    //定位数据表地址完成

    //取当年春节所在的公历月份
    temp1=year_code[table_addr+2]&0x60;
    temp1=_cror_(temp1,5);
    //取当年春节所在的公历月份完成

    //取当年春节所在的公历日
    temp2=year_code[table_addr+2]&0x1f;
    //取当年春节所在的公历日完成

    // 计算当年春年离当年元旦的天数,春节只会在公历1月或2月
    if(temp1==0x1){  
        temp3=temp2-1;  
    }  
    else{
        temp3=temp2+0x1f-1;        
    }
    // 计算当年春年离当年元旦的天数完成

    //计算公历日离当年元旦的天数,为了减少运算,用了两个表
    //day_code1[9],day_code2[3]
    //如果公历月在九月或前,天数会少于0xff,用表day_code1[9],
    //在九月后,天数大于0xff,用表day_code2[3]
    //如输入公历日为8月10日,则公历日离元旦天数为day_code1[8-1]+10-1
    //如输入公历日为11月10日,则公历日离元旦天数为day_code2[11-10]+10-1
    if (month<10){
        temp4=day_code1[month-1]+day-1;
    }
    else{
        temp4=day_code2[month-10]+day-1;
    }
    if ((month>0x2)&&(year%0x4==0)){  //如果公历月大于2月并且该年的2月为闰月,天数加1
        temp4+=1;
    }
    //计算公历日离当年元旦的天数完成

    //判断公历日在春节前还是春节后
    if (temp4>=temp3){ //公历日在春节后或就是春节当日使用下面代码进行运算
        temp4-=temp3;
        month=0x1;
        month_p=0x1;  //month_p为月份指向,公历日在春节前或就是春节当日month_p指向首月
        flag2=get_moon_day(month_p,table_addr); //检查该农历月为大小还是小月,大月返回1,小月返回0
        flag_y=0;
        if(flag2==0)temp1=0x1d; //小月29天
        else temp1=0x1e; //大小30天
        temp2=year_code[table_addr]&0xf0;
        temp2=_cror_(temp2,4);  //从数据表中取该年的闰月月份,如为0则该年无闰月
        while(temp4>=temp1){
            temp4-=temp1;
            month_p+=1;
            if(month==temp2){
            flag_y=~flag_y;
            if(flag_y==0)month+=1;
            }
            else month+=1;
            flag2=get_moon_day(month_p,table_addr);
            if(flag2==0)temp1=0x1d;
            else temp1=0x1e;
        }
        day=temp4+1;
    }
    else{  //公历日在春节前使用下面代码进行运算
        temp3-=temp4;
        if (year==0x0){year=0x63;c=1;}
        else year-=1;
        table_addr-=0x3;
        month=0xc;
        temp2=year_code[table_addr]&0xf0;
        temp2=_cror_(temp2,4);
        if (temp2==0)month_p=0xc;
        else month_p=0xd; //
        /*
        month_p为月份指向,如果当年有闰月,一年有十三个月,月指向13,
无闰月指向12
        */
        flag_y=0;
        flag2=get_moon_day(month_p,table_addr);
        if(flag2==0)temp1=0x1d;
        else temp1=0x1e;
        while(temp3>temp1){
            temp3-=temp1;
            month_p-=1;
            if(flag_y==0)month-=1;
            if(month==temp2)flag_y=~flag_y;
            flag2=get_moon_day(month_p,table_addr);
            if(flag2==0)temp1=0x1d;
            else temp1=0x1e;
         }
        day=temp1-temp3+1;
    }
    c_moon=c;                 //HEX->BCD ,运算结束后,把数据转换为BCD数据
    temp1=year/10;
    temp1=_crol_(temp1,4);
    temp2=year%10;
    year_moon=temp1|temp2;
    temp1=month/10;
    temp1=_crol_(temp1,4);
    temp2=month%10;
    month_moon=temp1|temp2;
    temp1=day/10;
    temp1=_crol_(temp1,4);
    temp2=day%10;
    day_moon=temp1|temp2;
}

/*
函数功能:输入BCD阳历数据,输出BCD星期数据(只允许1901-2099年)
调用函数示例:Conver_week(c_sun,year_sun,month_sun,day_sun)
如:计算2004年10月16日Conversion(0,0x4,0x10,0x16);
c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世
纪,c_sun=1为19世纪
调用函数后,原有数据不变,读week得出阴历BCD数据
*/
code uchar table_week[12]={0,3,3,6,1,4,6,2,5,0,3,5}; //月修正数据表
/*
算法:日期+年份+所过闰年数+月较正数之和除7 的余数就是星期但如果是在
闰年又不到3 月份上述之和要减一天再除7
星期数为0
*/
void Conver_week(bit c,uchar year,uchar month,uchar day)
{//c=0 为21世纪,c=1 为19世纪 输入输出数据均为BCD数据
    uchar temp1,temp2;
    temp1=year/16;   //BCD->hex 先把数据转换为十六进制
    temp2=year%16;
    year=temp1*10+temp2;
    temp1=month/16;
    temp2=month%16;
    month=temp1*10+temp2;
    temp1=day/16;
    temp2=day%16;
    day=temp1*10+temp2;
    if (c==0){year+=0x64;}  //如果为21世纪,年份数加100
    temp1=year/0x4;  //所过闰年数只算1900年之后的
    temp2=year+temp1;
    temp2=temp2%0x7;  //为节省资源,先进行一次取余,避免数大于0xff,避免使用整型数据
    temp2=temp2+day+table_week[month-1];
    if (year%0x4==0&&month<3)temp2-=1;
    week=temp2%0x7;
}

//test
uchar c_sun,year_sun,month_sun,day_sun;
void main(){
c_sun=1;
year_sun=0x2;
month_sun=0x11;
day_sun=0x3;
Conver_week(c_sun,year_sun,month_sun,day_sun);
Conversion(c_sun,year_sun,month_sun,day_sun);
while(1);
}