if( ((LunarCalendarTable[year-1901] & 0x0060) >> 5) == 1)

记录春节离当年元旦的天数,具体请看：【本程序在DEV C++ 4。9。9。2 下编译通过】有关农历的东西有以下几篇文章：计算某天是星期几【C代码】农历算法简介以及公式农历中天干地支的计算【C代码】农历一百年算法（1921~2021）【C语言代码】农历两百年算法（1901~2100）【C语言代码】下面是两百年算法,另外网上也流传着一个很有名气的一百年算法。农历一百年算法（1921~2021）【C语言代码】下面的三个表格是农历数据表 LunarCalendarTable 的结构。总共使用了32位整数的0～23位。6543210表示春节的公历月份表示春节的公历日期 1918171615141312111098712345678910111213农历1-13 月大小 。月份对应位为1,农历月大(30 天),为0 表示小(29 天) 23222120表示当年闰月月份,值为0 为则表示当年无闰月。 #include unsigned int LunarCalendarDay;unsigned int LunarCalendarTable[199] = { 0x04AE53,0x0A5748,0x5526BD,0x0D2650,0x0D9544,0x46AAB9,0x056A4D,0x09AD42,0x24AEB6,0x04AE4A, 0x6A4DBE,0x0A4D52,0x0D2546,0x5D52BA,0x0B544E,0x0D6A43,0x296D37,0x095B4B,0x749BC1,0x049754, 0x0A4B48,0x5B25BC,0x06A550,0x06D445,0x4ADAB8,0x02B64D,0x095742,0x2497B7,0x04974A,0x664B3E, 0x0D4A51,0x0EA546,0x56D4BA,0x05AD4E,0x02B644,0x393738,0x092E4B,0x7C96BF,0x0C9553,0x0D4A48, 0x6DA53B,0x0B554F,0x056A45,0x4AADB9,0x025D4D,0x092D42,0x2C95B6,0x0A954A,0x7B4ABD,0x06CA51, 0x0B5546,0x555ABB,0x04DA4E,0x0A5B43,0x352BB8,0x052B4C,0x8A953F,0x0E9552,0x06AA48,0x6AD53C, 0x0AB54F,0x04B645,0x4A5739,0x0A574D,0x052642,0x3E9335,0x0D9549,0x75AABE,0x056A51,0x096D46, 0x54AEBB,0x04AD4F,0x0A4D43,0x4D26B7,0x0D254B,0x8D52BF,0x0B5452,0x0B6A47,0x696D3C,0x095B50, 0x049B45,0x4A4BB9,0x0A4B4D,0xAB25C2,0x06A554,0x06D449,0x6ADA3D,0x0AB651,0x093746,0x5497BB, 0x04974F,0x064B44,0x36A537,0x0EA54A,0x86B2BF,0x05AC53,0x0AB647,0x5936BC,0x092E50,0x0C9645, 0x4D4AB8,0x0D4A4C,0x0DA541,0x25AAB6,0x056A49,0x7AADBD,0x025D52,0x092D47,0x5C95BA,0x0A954E, 0x0B4A43,0x4B5537,0x0AD54A,0x955ABF,0x04BA53,0x0A5B48,0x652BBC,0x052B50,0x0A9345,0x474AB9, 0x06AA4C,0x0AD541,0x24DAB6,0x04B64A,0x69573D,0x0A4E51,0x0D2646,0x5E933A,0x0D534D,0x05AA43, 0x36B537,0x096D4B,0xB4AEBF,0x04AD53,0x0A4D48,0x6D25BC,0x0D254F,0x0D5244,0x5DAA38,0x0B5A4C, 0x056D41,0x24ADB6,0x049B4A,0x7A4BBE,0x0A4B51,0x0AA546,0x5B52BA,0x06D24E,0x0ADA42,0x355B37, 0x09374B,0x8497C1,0x049753,0x064B48,0x66A53C,0x0EA54F,0x06B244,0x4AB638,0x0AAE4C,0x092E42, 0x3C9735,0x0C9649,0x7D4ABD,0x0D4A51,0x0DA545,0x55AABA,0x056A4E,0x0A6D43,0x452EB7,0x052D4B, 0x8A95BF,0x0A9553,0x0B4A47,0x6B553B,0x0AD54F,0x055A45,0x4A5D38,0x0A5B4C,0x052B42,0x3A93B6, 0x069349,0x7729BD,0x06AA51,0x0AD546,0x54DABA,0x04B64E,0x0A5743,0x452738,0x0D264A,0x8E933E, 0x0D5252,0x0DAA47,0x66B53B,0x056D4F,0x04AE45,0x4A4EB9,0x0A4D4C,0x0D1541,0x2D92B5 };int MonthAdd[12] = {0,31,59,90,120,151,181,212,243,273,304,334};int LunarCalendar(int year,int month,int day){ int Spring_NY,Sun_NY,StaticDayCount; int index,flag; //Spring_NY 记录春节离当年元旦的天数。 //Sun_NY 记录阳历日离当年元旦的天数。 if( ((LunarCalendarTable[year-1901] & 0x0060) >> 5) == 1) Spring_NY = (LunarCalendarTable[year-1901] & 0x001F) - 1; else Spring_NY = (LunarCalendarTable[year-1901] & 0x001F) - 1 + 31; Sun_NY = MonthAdd[month-1] + day - 1; if( (!(year % 4)) && (month > 2)) Sun_NY++; //StaticDayCount记录大小月的天数 29 或30 //index 记录从哪个月开始来计算。 //flag 是用来对闰月的特殊处理。 //判断阳历日在春节前还是春节后 if (Sun_NY >= Spring_NY)//阳历日在春节后（含春节那天） { Sun_NY -= Spring_NY; month = 1; index = 1; flag = 0; if( ( LunarCalendarTable[year - 1901] & (0x80000 >> (index-1)) ) ==0) StaticDayCount = 29; else StaticDayCount = 30; while(Sun_NY >= StaticDayCount) { Sun_NY -= StaticDayCount; index++; if(month == ((LunarCalendarTable[year - 1901] & 0xF00000) >> 20) ) { flag = ~flag; if(flag == 0) month++; } else month++; if( ( LunarCalendarTable[year - 1901] & (0x80000 >> (index-1)) ) ==0) StaticDayCount=29; else StaticDayCount=30; } day = Sun_NY + 1; } else//阳历日在春节前 { Spring_NY -= Sun_NY; year--; month = 12; if ( ((LunarCalendarTable[year - 1901] & 0xF00000) >> 20) == 0) index = 12; else index = 13; flag = 0; if( ( LunarCalendarTable[year - 1901] & (0x80000 >> (index-1)) ) ==0) StaticDayCount = 29; else StaticDayCount = 30; while(Spring_NY > StaticDayCount) { Spring_NY -= StaticDayCount; index--; if(flag == 0) month--; if(month == ((LunarCalendarTable[year - 1901] & 0xF00000) >> 20)) flag = ~flag; if( ( LunarCalendarTable[year - 1901] & (0x80000 >> (index-1)) ) ==0) StaticDayCount = 29; else StaticDayCount = 30; } day = StaticDayCount - Spring_NY + 1; } LunarCalendarDay |= day; LunarCalendarDay |= (month > 20)) return 1; else return 0;}main(){ const char *ChDay[] = {"*","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","十七","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"}; const char *ChMonth[] = {"*","正","二","三","四","五","六","七","八","九","十","十一","腊"}; struct tm * Local; long t; int year,month,day; char str[13] = ""; #if 0 t = time(NULL); Local = localtime(&t); year = Local->tm_year + 1900; month = Local->tm_mon + 1; day = Local-> tm_mday;#else year = 2006; month = 9; day = 9;#endif printf("%d年%d月%d日\t",year,month,day); if(LunarCalendar(year,month,day)) { strcat(str,"闰"); strcat(str,ChMonth[(LunarCalendarDay & 0x3C0) >> 6]); } else strcat(str,ChMonth[(LunarCalendarDay & 0x3C0) >> 6]); strcat(str,"月"); strcat(str,ChDay[LunarCalendarDay & 0x3F]); puts(str); system("pause");}