公历和农历转换算法详解//C51写的公历转农历和星期#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 00x0A,0x57,0x48, //1902 30x55,0x26,0xBd, //1903 60x0d,0x26,0x50, //1904 90x0d,0x95,0x44, //1905 120x46,0xAA,0xB9, //1906 150x05,0x6A,0x4d, //1907 180x09,0xAd,0x42, //1908 210x24,0xAe,0xB6, //19090x04,0xAe,0x4A, //19100x6A,0x4d,0xBe, //19110x0A,0x4d,0x52, //19120x0d,0x25,0x46, //19130x5d,0x52,0xBA, //19140x0B,0x54,0x4e, //19150x0d,0x6A,0x43, //19160x29,0x6d,0x37, //19170x09,0x5B,0x4B, //19180x74,0x9B,0xC1, //19190x04,0x97,0x54, //19200x0A,0x4B,0x48, //19210x5B,0x25,0xBC, //19220x06,0xA5,0x50, //19230x06,0xd4,0x45, //19240x4A,0xdA,0xB8, //19250x02,0xB6,0x4d, //19260x09,0x57,0x42, //19270x24,0x97,0xB7, //19280x66,0x4B,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, //1950 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, //19720x4d,0x26,0xB7, //19740x0d,0x25,0x4B, //19750x8d,0x52,0xBf, //19760x0B,0x54,0x52, //19770x0B,0x6A,0x47, //19780x69,0x6d,0x3C, //19790x09,0x5B,0x50, //19800x04,0x9B,0x45, //19810x4A,0x4B,0xB9, //19820x0A,0x4B,0x4d, //19830xAB,0x25,0xC2, //19840x06,0xA5,0x54, //19850x06,0xd4,0x49, //19860x6A,0xdA,0x3d, //19870x0A,0xB6,0x51, //19880x09,0x37,0x46, //19890x54,0x97,0xBB, //19900x04,0x97,0x4f, //19910x06,0x4B,0x44, //19920x36,0xA5,0x37, //19930x0e,0xA5,0x4A, //19940x86,0xB2,0xBf, //19950x05,0xAC,0x53, //19960x0A,0xB6,0x47, //19970x59,0x36,0xBC, //19980x09,0x2e,0x50, //1999 294 0x0C,0x96,0x45, //2000 297 0x4d,0x4A,0xB8, //20010x0d,0x4A,0x4C, //20020x0d,0xA5,0x41, //20030x25,0xAA,0xB6, //20040x05,0x6A,0x49, //20050x7A,0xAd,0xBd, //20060x02,0x5d,0x52, //20070x09,0x2d,0x47, //20080x5C,0x95,0xBA, //20090x0A,0x95,0x4e, //20100x0B,0x4A,0x43, //20110x4B,0x55,0x37, //20120x0A,0xd5,0x4A, //20130x95,0x5A,0xBf, //20140x04,0xBA,0x53, //20150x0A,0x5B,0x48, //20160x05,0x2B,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 0x35,0x5B,0x37, //2050 0x09,0x37,0x4B, //2051 0x84,0x97,0xC1, //2052 0x04,0x97,0x53, //2053 0x06,0x4B,0x48, //2054 0x66,0xA5,0x3C, //2055 0x0e,0xA5,0x4f, //2056 0x06,0xB2,0x44, //2057 0x4A,0xB6,0x38, //2058 0x0A,0xAe,0x4C, //2059 0x09,0x2e,0x42, //20600x0C,0x96,0x49, //20620x7d,0x4A,0xBd, //20630x0d,0x4A,0x51, //20640x0d,0xA5,0x45, //20650x55,0xAA,0xBA, //20660x05,0x6A,0x4e, //20670x0A,0x6d,0x43, //20680x45,0x2e,0xB7, //20690x05,0x2d,0x4B, //20700x8A,0x95,0xBf, //20710x0A,0x95,0x53, //20720x0B,0x4A,0x47, //20730x6B,0x55,0x3B, //20740x0A,0xd5,0x4f, //20750x05,0x5A,0x45, //20760x4A,0x5d,0x38, //20770x0A,0x5B,0x4C, //20780x05,0x2B,0x42, //20790x3A,0x93,0xB6, //20800x06,0x93,0x49, //20810x77,0x29,0xBd, //20820x06,0xAA,0x51, //20830x0A,0xd5,0x46, //20840x54,0xdA,0xBA, //20850x04,0xB6,0x4e, //20860x0A,0x57,0x43, //20870x45,0x27,0x38, //20880x0d,0x26,0x4A, //20890x8e,0x93,0x3e, //20900x0d,0x52,0x52, //20910x0d,0xAA,0x47, //20920x66,0xB5,0x3B, //20930x05,0x6d,0x4f, //20940x04,0xAe,0x45, //20950x4A,0x4e,0xB9, //20960x0A,0x4d,0x4C, //20970x0d,0x15,0x41, //20980x2d,0x92,0xB5, //2099};///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};/*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);}}}/*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]+10-1if (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1temp4+=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0flag_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;elsemonth_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100temp1=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;}//testuchar 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);}算法一：公历转农历============================================================================ /*------------农历转换函数-----------*/char *GetDayOf(PSYSTEMTIME pSt){/*天干名称*/const char *cTianGan[] = {"甲","乙","丙","丁","戊","己","庚","辛","壬","癸"};/*地支名称*/const char *cDiZhi[] = {"子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"};/*属相名称*/const char *cShuXiang[] = {"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"};/*农历日期名*/const char *cDayName[] = {"*","初一","初二","初三","初四","初五","初六","初七","初八","初九","初十","十一","十二","十三","十四","十五","十六","十","十八","十九","二十","廿一","廿二","廿三","廿四","廿五","廿六","廿七","廿八","廿九","三十"};/*农历月份名*/const char *cMonName[] = {"*","正","二","三","四","五","六","七","八","九","十","十一","腊"};/*公历每月前面的天数*/const int wMonthAdd[12] = {0,31,59,90,120,151,181,212,243,273,304,334};/*农历数据*/const int wNongliData[100] = {2635,333387,1701,1748,267701,694,2391,133423,1175,396438 ,3402,3749,331177,1453,694,201326,2350,465197,3221,3402,400202,2901,1386,267611,605,2349,137515,2709,464533,1738,2901,330421,1242,2651,199255,1323,529706,3733,1706,398762,2741,1206,267438,2647,1318,204070,3477,461653,1386,2413,330077,1197,2637,268877,3365,531109,2900,2922,398042,2395,1179,267415,2635,661067,1701,1748,398772,2742,2391,330031,1175,1611,200010,3749,527717,1452,2742,332397,2350,3222,268949,3402,3493,133973,1386,464219,605,2349,334123,2709,2890,267946,2773,592565,1210,2651,395863,1323,2707,265877};static int wCurYear,wCurMonth,wCurDay;static int nTheDate,nIsEnd,m,k,n,i,nBit;TCHAR szNongli[30], szNongliDay[10],szShuXiang[10];/*---取当前公历年、月、日---*/wCurYear = pSt->wYear;wCurMonth = pSt->wMonth;wCurDay = pSt->wDay;/*---计算到初始时间1921年2月8日的天数：1921-2-8(正月初一)---*/nTheDate = (wCurYear - 1921) * 365 + (wCurYear - 1921) / 4 + wCurDay + wMonthAdd[wCurMonth - 1] - 38;if((!(wCurYear % 4)) && (wCurMonth > 2))nTheDate = nTheDate + 1;/*--计算农历天干、地支、月、日---*/nIsEnd = 0;m = 0;while(nIsEnd != 1){if(wNongliData[m] < 4095)k = 11;elsek = 12;n = k;while(n>=0){//获取wNongliData(m)的第n个二进制位的值nBit = wNongliData[m];for(i=1;i<n+1;i++)nBit = nBit/2;nBit = nBit % 2;if (nTheDate <= (29 + nBit)){nIsEnd = 1;break;}nTheDate = nTheDate - 29 - nBit;n = n - 1;}if(nIsEnd)break;m = m + 1;}wCurYear = 1921 + m;wCurMonth = k - n + 1;wCurDay = nTheDate;if (k == 12){if (wCurMonth == wNongliData[m] / 65536 + 1)wCurMonth = 1 - wCurMonth;else if (wCurMonth > wNongliData[m] / 65536 + 1)wCurMonth = wCurMonth - 1;}/*--生成农历天干、地支、属相==> wNongli--*/wsprintf(szShuXiang,"%s",cShuXiang[((wCurYear - 4) % 60) % 12]);wsprintf(szNongli,"%s(%s%s)年",szShuXiang,cTianGan[((wCurYear - 4) % 60) % 10],cDiZhi[((wCurYear - 4) % 60) % 12]);/*--生成农历月、日==> wNongliDay--*/if (wCurMonth < 1)wsprintf(szNongliDay,"闰%s",cMonName[-1 * wCurMonth]);elsestrcpy(szNongliDay,cMonName[wCurMonth]);strcat(szNongliDay,"月");strcat(szNongliDay,cDayName[wCurDay]);return strcat(szNongli,szNongliDay);}============================================================================首先，我们要确定一个时刻，作为一天的起点（包括这个时刻）。