农历的计算---C++

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转载最新推荐文章于 2026-07-21 14:25:29 发布 2k 阅读 AI 写同款· GEO 优化 ›

C++：公历转农历的程序一、简介该算法从网上找到，将公历转成农历，只能计算1921年-2021年间的农历。只能显示甲午年，生肖和农历，无法得到庚午月、癸丑日。二、函数 void Window::get_chinese_calendar(QDate english_calendar, QString &outLunarDay, QString &outLunarYe 阅读详情

历法基本知识总结，不废话。

太阳公转周期，一年时间约365.2425天。

公历为了对齐公转周期，4年一闰，100年一停闰，400年加一闰。 400年共97闰，（365×400+97）/400 = 365.2425

农历，一个月相周期为一月，月相周期大约为29.53, 有大小月之分，大月30天，小月29天。月相变化受到地球公转和月亮围绕地球转的共同影响，两个都是椭圆轨道，且不在一个平面上，非常复杂。所以，大小月变化规律不是一个简单的规律。

农历为了对齐公转周期，每19年加7个闰月，

因为，农历的推算比较复杂，大多使用查表法进行计算，包括我这里提供的算法。

我一直想实现一个计算轨道的推算方法，因为人懒，现在还没有什么进展。我会继续关注。

现在看到网上没有找到满意的C++查表农历算法法实现，所以自己实现了一个。

C++实现的算法

以下文件在linux g++ (GCC) 4.1.2 环境编译通过

//file: lunarday.h //author: cuichaox@gmail.com //2007-02-13 11:22:04 #ifndef LUANR_CALENDAR_H #define LUANR_CALENDAR_H namespace lunar { //保存一个农历日期 typedef struct T_Date { //年 int year; //月 int month; //日 int day; //是否闰月 bool leap; } Date; //公历转农历 Date LuanrDate(int solar_year,int solar_month,int solar_day); }

//file: lunarday.cpp //author: cuichao@gmail.com //2007-02-13 11:22:48 #include "lunarday.h" #include <ctime> #include <cassert> #include <cstring> #include <iostream> using namespace std; using lunar::Date; //使用比特位记录每年的情况 //0~4 共5bit 春节日份 //5~6 共2bit 春节月份 //7~19 共13bit 13个月的大小月情况(如果无闰月，最后位无效)，大月为1,小月为0 //20~23 共4bit 记录闰月的月份，如果没有闰月为0 static const int BEGIN_YEAR = 1901; static const int NUMBER_YEAR = 199; static const unsigned int LUNAR_YEARS[199] = { 0x04AE53,0x0A5748,0x5526BD,0x0D2650,0x0D9544, 0x46AAB9,0x056A4D,0x09AD42,0x24AEB6,0x04AE4A, //1901-1910 0x6A4DBE,0x0A4D52,0x0D2546,0x5D52BA,0x0B544E, 0x0D6A43,0x296D37,0x095B4B,0x749BC1,0x049754, //1911-1920 0x0A4B48,0x5B25BC,0x06A550,0x06D445,0x4ADAB8, 0x02B64D,0x095742,0x2497B7,0x04974A,0x664B3E, //1921-1930 0x0D4A51,0x0EA546,0x56D4BA,0x05AD4E,0x02B644, 0x393738,0x092E4B,0x7C96BF,0x0C9553,0x0D4A48, //1931-1940 0x6DA53B,0x0B554F,0x056A45,0x4AADB9,0x025D4D, 0x092D42,0x2C95B6,0x0A954A,0x7B4ABD,0x06CA51, //1941-1950 0x0B5546,0x555ABB,0x04DA4E,0x0A5B43,0x352BB8, 0x052B4C,0x8A953F,0x0E9552,0x06AA48,0x7AD53C, //1951-1960 0x0AB54F,0x04B645,0x4A5739,0x0A574D,0x052642, 0x3E9335,0x0D9549,0x75AABE,0x056A51,0x096D46, //1961-1970 0x54AEBB,0x04AD4F,0x0A4D43,0x4D26B7,0x0D254B, 0x8D52BF,0x0B5452,0x0B6A47,0x696D3C,0x095B50, //1971-1980 0x049B45,0x4A4BB9,0x0A4B4D,0xAB25C2,0x06A554, 0x06D449,0x6ADA3D,0x0AB651,0x093746,0x5497BB, //1981-1990 0x04974F,0x064B44,0x36A537,0x0EA54A,0x86B2BF, 0x05AC53,0x0AB647,0x5936BC,0x092E50,0x0C9645, //1991-2000 0x4D4AB8,0x0D4A4C,0x0DA541,0x25AAB6,0x056A49, 0x7AADBD,0x025D52,0x092D47,0x5C95BA,0x0A954E, //2001-2010 0x0B4A43,0x4B5537,0x0AD54A,0x955ABF,0x04BA53, 0x0A5B48,0x652BBC,0x052B50,0x0A9345,0x474AB9, //2011-2020 0x06AA4C,0x0AD541,0x24DAB6,0x04B64A,0x69573D, 0x0A4E51,0x0D2646,0x5E933A,0x0D534D,0x05AA43, //2021-2030 0x36B537,0x096D4B,0xB4AEBF,0x04AD53,0x0A4D48, 0x6D25BC,0x0D254F,0x0D5244,0x5DAA38,0x0B5A4C, //2031-2040 0x056D41,0x24ADB6,0x049B4A,0x7A4BBE,0x0A4B51, 0x0AA546,0x5B52BA,0x06D24E,0x0ADA42,0x355B37, //2041-2050 0x09374B,0x8497C1,0x049753,0x064B48,0x66A53C, 0x0EA54F,0x06B244,0x4AB638,0x0AAE4C,0x092E42, //2051-2060 0x3C9735,0x0C9649,0x7D4ABD,0x0D4A51,0x0DA545, 0x55AABA,0x056A4E,0x0A6D43,0x452EB7,0x052D4B, //2061-2070 0x8A95BF,0x0A9553,0x0B4A47,0x6B553B,0x0AD54F, 0x055A45,0x4A5D38,0x0A5B4C,0x052B42,0x3A93B6, //2071-2080 0x069349,0x7729BD,0x06AA51,0x0AD546,0x54DABA, 0x04B64E,0x0A5743,0x452738,0x0D264A,0x8E933E, //2081-2090 0x0D5252,0x0DAA47,0x66B53B,0x056D4F,0x04AE45, 0x4A4EB9,0x0A4D4C,0x0D1541,0x2D92B5 //2091-2099 }; //计算这个公历日期是一年中的第几天 static int DayOfSolarYear(int year, int month, int day ) { //为了提高效率，记录每月一日是一年中的第几天 static const int NORMAL_YDAY[12] = {1,32,60,91,121,152, 182,213,244,274,305,335}; //闰年的情况 static const int LEAP_YDAY[12] = {1,32,61,92,122,153, 183,214,245,275,306,336}; const int *t_year_yday_ = NORMAL_YDAY; //判断是否是公历闰年 if( year % 4 ==0 ) { if(year%100 != 0) t_year_yday_ = LEAP_YDAY; if(year%400 == 0) t_year_yday_ = LEAP_YDAY; } return t_year_yday_[month -1] + (day -1); } Date lunar::LuanrDate(int solar_year,int solar_month,int solar_day) { Date luanr_date ; luanr_date.year = solar_year; luanr_date.month = 0; luanr_date.day = 0; luanr_date.leap = false; //越界检查，如果越界，返回无效日期 if(solar_year <= BEGIN_YEAR || solar_year > BEGIN_YEAR + NUMBER_YEAR - 1 ) return luanr_date; int year_index = solar_year - BEGIN_YEAR; //计算春节的公历日期 int spring_ny_month = ( LUNAR_YEARS[year_index] & 0x60 ) >> 5; int spring_ny_day = ( LUNAR_YEARS[year_index] & 0x1f); //计算今天是公历年的第几天 int today_solar_yd = DayOfSolarYear(solar_year,solar_month,solar_day); //计算春节是公历年的第几天 int spring_ny_yd = DayOfSolarYear(solar_year,spring_ny_month,spring_ny_day); //计算今天是农历年的第几天 int today_luanr_yd = today_solar_yd - spring_ny_yd + 1; //如果今天在春节的前面，重新计算today_luanr_yd if ( today_luanr_yd < 0) { //农历年比当前公历年小1 year_index --; luanr_date.year --; //越界，返回无效日期 if(year_index <0) return luanr_date; spring_ny_month = ( LUNAR_YEARS[year_index] & 0x60 ) >> 5; spring_ny_day = ( LUNAR_YEARS[year_index] & 0x1f); spring_ny_yd = DayOfSolarYear(solar_year,spring_ny_month,spring_ny_day); int year_total_day = DayOfSolarYear(luanr_date.year,12,31); today_luanr_yd = today_solar_yd + year_total_day - spring_ny_yd + 1; } int luanr_month = 1; //计算月份和日期 for(;luanr_month<=13;luanr_month++) { int month_day = 29; if( (LUNAR_YEARS[year_index] >> (6 + luanr_month)) & 0x1 ) month_day = 30; if( today_luanr_yd <= month_day ) break; else today_luanr_yd -= month_day; } luanr_date.day = today_luanr_yd; //处理闰月 int leap_month = (LUNAR_YEARS[year_index] >>20) & 0xf; if(leap_month > 0 && leap_month < luanr_month ) { luanr_month --; //如果当前月为闰月，设置闰月标志 if( luanr_month == leap_month ) luanr_date.leap = true; } assert(leap_month <= 12); luanr_date.month = luanr_month; return luanr_date; }

测试主函数，打印当前农历日期

//file: chdate.cpp //author: cuichaox@gmail.com //2007-02-13 11:21:45 #include <iostream> #include <ctime> #include "lunarday.h" int main(int argc, char *argv[]) { using namespace std; using namespace lunar; time_t current_time; time(&current_time); tm *current_tm = localtime(&current_time); int year = current_tm->tm_year + 1900; int month = current_tm->tm_mon +1; int day = current_tm->tm_mday; Date lunar_date = LuanrDate(year,month,day); cout<<lunar_date.year<<"年"; if(lunar_date.leap) cout<<"闰"; cout<<lunar_date.month<<"月"; cout<<lunar_date.day<<"日"; cout<<endl; return 0; }