你这是要什么语言的？我这里有C版本的，当然C++版本也是可以改出来的。包含了农历与节气，基本上能满足你的要求，如果需要，可以追问，源码奉上，另外，我还有个C/C++的农历库，专门为万年历设计，集成了很实用的功能，用起来非常方便。以下是类的声明：
class CLunar
{
public:
virtual long Int(double dDays) const=0;
virtual bool GetDayOrdinal(LONGTIME LongTime,int iYear,double &dDays)=0;
virtual bool GetDateFromOrdinal(int iYear,double dDays,LONGTIME &LongTime)=0;
virtual bool GetEasterSunday(int iYear,unsigned short &wMonth,unsigned short &wDay)=0;
virtual bool GetConstellation(int iYear,unsigned short wMonth,unsigned short wDay,unsigned short &wConstellationIndex)=0;
virtual bool GetGanZhi(LONGTIME LongTime,GANZHI &GanZhi,bool bYStartLiChun=false)=0;
virtual bool GetGregorian(LUNARDATE LunarDate,LONGTIME &LongTime)=0;
virtual bool GetLunar(LONGTIME LongTime,LUNARDATE &LunarDate)=0;
virtual bool GetLunarMonthInfo(int iYear,LUNARMONTH &MonthInfo)=0;
virtual bool GetLunarPhase(int iYear,unsigned short wMonth,LUNARPHASE &LunarPhase)=0;
virtual bool GetSolarTerms(int iYear,SOLARTERMS &SolarTerms)=0;
virtual bool IsLeapYear(int iYear,bool &bLeapYear)=0;
virtual bool GetExtremeSeason(int iYear,EXTREMESEASON &ExtremeSeason)=0;
virtual bool GetSheRi(int iYear,SHERI &SheRi)=0;
virtual bool GetFengLong(int iYear,unsigned short &wFengLong)=0;
virtual bool GetDays(LONGTIME LongTime1,LONGTIME LongTime2,double &dDays)=0;
virtual bool GetDate(LONGTIME LongTime,double dDays,LONGTIME &DstLongTime)=0;
virtual bool InitTimeStructure(LONGTIME &LongTime,bool bCurrentTime,int iYear=2000,unsigned short wMonth=1,unsigned short wDay=1,unsigned short wHour=0,unsigned short wMinute=0,unsigned short wSecond=0,unsigned short wMilliSecond=0)=0;
virtual bool GetDayOfWeek(int iYear,unsigned short wMonth,unsigned short wDay,unsigned short &wDayOfWeek)=0;
virtual bool GetEmperorReign(LONGTIME longtime,char *pBuffer,unsigned int BufSize)=0;
virtual unsigned short GetDaysOfMonth(int iYear,unsigned short wMonth)=0;
virtual unsigned short GetDaysOfYear(int iYear)=0;
virtual unsigned short GetLeapMonth(int iYear)=0;
virtual unsigned short GetDaysOfLunarMonth(int iLunarYear,unsigned short wLunarMonth,bool bLeapMonth)=0;
virtual unsigned short GetDaysOfLunarYear(int iLunarYear)=0;
virtual LONGTIME SysTimeToLong(SYSTEMTIME SystemTime) const=0;
virtual SYSTEMTIME LongTimeToSys(LONGTIME LongTime) const=0;
virtual int Release()=0;
protected:
CLunar(void);
virtual ~CLunar(void);
};