阳历（公历）转农历

网上找了一些阳历转农历的代码，但总是有些对不上。

参照百度万年历和好记星的日历，实现了一下1900-2099年之间的阳历转农历。

#include <iostream> using namespace std; struct LunarDate { int year; int month; int day; bool isLeap; int yearCyl;//cyclic天干地支 int monCyl; int dayCyl; }; int lunarInfo[]= { // 1899年:0x0AB50 0x04BD8, 0x04AE0, 0x0A570, 0x054D5, 0x0D260, 0x0D950, 0x16554, 0x056A0, 0x09AD0, 0x055D2, // 1900-1909 0x04AE0, 0x0A5B6, 0x0A4D0, 0x0D250, 0x1D255, 0x0B540, 0x0D6A0/*0x1D295,0x0B550,0x056A0*/, 0x0ADA2, 0x095B0, 0x14977, // 1910-1919 0x04970, 0x0A4B0, 0x0B4B5, 0x06A50, 0x06D40, 0x1AB54, 0x02B60, 0x09570, 0x052F2, 0x04970, // 1920-1929 0x06566, 0x0D4A0, 0x0EA50, 0x06E95/*0x16A95*/, 0x05AD0, 0x02B60, 0x186E3, 0x092E0, 0x1C8D7, 0x0C950, // 1930-1939 0x0D4A0, 0x1D8A6, 0x0B550, 0x056A0, 0x1A5B4, 0x025D0, 0x092D0, 0x0D2B2, 0x0A950, 0x0B557, // 1940-1949 0x06CA0, 0x0B550, 0x15355, 0x04DA0, 0x0A5B0, 0x14573, 0x052B0, 0x0A9A8, 0x0E950, 0x06AA0, // 1950-1959 0x0AEA6, 0x0AB50, 0x04B60, 0x0AAE4, 0x0A570, 0x05260, 0x0F263, 0x0D950, 0x05B57, 0x056A0, // 1960-1969 0x096D0, 0x04DD5, 0x04AD0, 0x0A4D0, 0x0D4D4, 0x0D250, 0x0D558, 0x0B540, 0x0B6A0, 0x195A6, // 1970-1979 0x095B0, 0x049B0, 0x0A974, 0x0A4B0, 0x0B27A, 0x06A50, 0x06D40, 0x0AF46, 0x0AB60, 0x09570, // 1980-1989 0x04AF5, 0x04970, 0x064B0, 0x074A3, 0x0EA50, 0x06B58, 0x055C0/*0x05AC0*/, 0x0AB60, 0x096D5, 0x092E0, // 1990-1999 0x0C960, 0x0D954, 0x0D4A0, 0x0DA50, 0x07552, 0x056A0, 0x0ABB7, 0x025D0, 0x092D0, 0x0CAB5, // 2000-2009 0x0A950, 0x0B4A0, 0x0BAA4, 0x0AD50, 0x055D9, 0x04BA0, 0x0A5B0, 0x15176, 0x052B0, 0x0A930, // 2010-2019 0x07954, 0x06AA0, 0x0AD50, 0x05B52, 0x04B60, 0x0A6E6, 0x0A4E0, 0x0D260, 0x0EA65, 0x0D530, // 2020-2029 0x05AA0, 0x076A3, 0x096D0, 0x04BD7/*0x04AFB*/, 0x04AD0, 0x0A4D0, 0x1D0B6, 0x0D250, 0x0D520, 0x0DD45, // 2030-2039 0x0B5A0, 0x056D0, 0x055B2, 0x049B0, 0x0A577, 0x0A4B0, 0x0AA50, 0x1B255, 0x06D20, 0x0ADA0, // 2040-2049 // 增加2050-2100年数据 0x14B63, 0x09370, 0x049F8, 0x04970, 0x064B0, 0x168A6, 0x0EA50, 0x06B20, 0x1A6C4, 0x0AAE0, // 2050-2059 0x092E0, 0x0D2E3, 0x0C960, 0x0D557, 0x0D4A0, 0x0DA50, 0x05D55, 0x056A0, 0x0A6D0, 0x055D4, // 2060-2069 0x052D0, 0x0A9B8, 0x0A950, 0x0B4A0, 0x0B6A6, 0x0AD50, 0x055A0, 0x0ABA4, 0x0A5B0, 0x052B0, // 2070-2079 0x0B273, 0x06930, 0x07337, 0x06AA0, 0x0AD50, 0x14B55, 0x04B60, 0x0A570, 0x054E4, 0x0D260, // 2080-2089 0x0E968, 0x0D520, 0x0DAA0, 0x16AA6, 0x056D0, 0x04AE0, 0x0A9D4, 0x0A4D0, 0x0D150, 0x0F252, // 2090-2099 0x0D520, // 2100 }; //==== 传回农历 y年闰哪个月 1-12 , 没闰传回 0 int GetLunarLeapMonth(int y) { return(lunarInfo[y-1900] & 0xf); } //==== 传回农历 y年闰月的天数 int GetLunarLeapDays(int y) { if(GetLunarLeapMonth(y)) return((lunarInfo[y-1900] & 0x10000)? 30: 29); else return(0); } //==== 传回农历 y年的总天数 int GetLunarYearDays(int y) { int i, sum = 348; for(i=0x8000; i>0x8; i>>=1) sum += (lunarInfo[y-1900] & i)? 1: 0; return sum+GetLunarLeapDays(y); } //====================================== 传回农历 y年m月的总天数 int GetLunarMonthDays(int y,int m) { if ( y >= 1900 ) return(lunarInfo[y-1900] & (0x10000>>m))? 30: 29 ; else if ( (y == 1899) && (m == 12) ) return 30; else return 0; } int GetSolarYearDays(int year) { if(year%4==0&&year%100!=0||year%400==0) return 366; else return 365; } int GetSolarMonthDays(int year,int month) { if(month==1||month==3||month==5||month==7||month==8||month==10||month==12) return 31; if(month==4||month==6||month==9||month==11) return 30; if(month==2&&GetSolarYearDays(year)==366) return 29; else return 28; } int GetDaysFrom19000131(int solarYear, int solarMonth,int solarDay) { int nRecYear; int nDays; // 1900年不是闰年，2000年是闰年，所以从1901年起每4年必有一个闰年 if ( solarYear >= 1901 ) { nRecYear = solarYear - 1901; nDays = (nRecYear * 365) + (nRecYear / 4); nDays += 365; // 1900年是365天 } else { nDays = 0; } for (int i = 1; i < solarMonth; i++) nDays += GetSolarMonthDays(solarYear,i); nDays += (solarDay - 31); return nDays; } //==== 算出农历, 传入日期物件, 传回农历日期物件 // 该物件属性有 .year .month .day .isLeap .yearCyl .dayCyl .monCyl struct LunarDate GetLunar(int solaryear, int solarmonth,int day) { struct LunarDate lunar; int i, leap=0, temp=0; int offset = GetDaysFrom19000131(solaryear,solarmonth,day); lunar.dayCyl = offset + 40; lunar.monCyl = 14; for(i=1900; i< 2100 && offset>0; i++) { temp=GetLunarYearDays(i); if (offset < temp) break; offset-=temp; } lunar.year = i; lunar.yearCyl = i-1864; leap = GetLunarLeapMonth(i); //闰哪个月 lunar.isLeap = false; for(i=1; i<13; i++) { //闰月 if(leap>0 && i==(leap+1) && !lunar.isLeap) { --i; lunar.isLeap = true; temp = GetLunarLeapDays(lunar.year); } else { temp = GetLunarMonthDays(lunar.year, i); } //解除闰月 if(lunar.isLeap && i==(leap+1)) { lunar.isLeap = false; } if (offset < temp) break; offset -= temp; } lunar.month = i; lunar.day = offset + 1; return lunar; } int main(int argc,char** args) { struct LunarDate lunar = GetLunar(2011,8,23); cout<<lunar.year<<"-"<<lunar.month<<"-"<<lunar.day<<endl; return 0; }