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 淘学考试计算机正文
 

阳历到阴历的转换
 
 


编辑:xujie 时间:2007-11-27 来源:淘学考试网 推荐好友




/*

  西历农历转换程式
   prototype: int CalConv( struct ConvDate * );

  struct ConvDate
   {
   int Source; ==0 则输入日期为西历, !=0 则输入为农历
   int SolarYear; 输出或输入之西历年份
   int SolarMonth; 西历月
   int SolarDate; 西历日
   int LunarYear; 输出或输入之农历年份
   int LunarMonth; 农历月
   int LunarDate; 农历日
   int Weekday; 该日为星期几 ( 0==星期日, 1==星期一, ... )
   int Kan; 该日天干 ( 0==甲, 1==乙, ..., 9==癸 )
   int Chih; 该日地支 ( 0==子, 1==丑, ..., 11==亥 )
   };

  呼叫时须设定 Souce 的值, 若为 0 则为西历转农历, 否则为农历转西历. 然後视输入为西历或农历来设定西历或农历的年月日. 转换後的年月日会填入结构中( 农历或西历 ), 以及该日为星期几, 天干地支.若函式的返回值为 0 表示没有错误, 1 为输入之年份错误, 2 为输入之月份错误,3 为输入之日期错误.
   输入之西历年须在 1937 - 2031 间
   输入之农历年须在 1936 - 2030 间
   若须扩充, 则增加 LunarCal[]

  */

  #define FIRSTYEAR 1936 /* The first year in LunarCal[] */

  struct ConvDate
   {
    int Source;
    int SolarYear;
    int SolarMonth;
    int SolarDate;
    int LunarYear;
    int LunarMonth;
    int LunarDate;
    int Weekday;
    int Kan;
    int Chih;
   };

  struct tagLunarCal
   {
   int BaseDays; /* 到西历 1 月 1 日到农历正月初一的累积日数 */
   int Intercalation; /* 闰月月份. 0==此年没有闰月 */
   int BaseWeekday; /* 此年西历 1 月 1 日为星期几再减 1 */
   int BaseKanChih; /* 此年西历 1 月 1 日之干支序号减 1 */
   int MonthDays[13]; /* 此农历年每月之大小, 0==小月(29日), 1==大月(30日) */
   };

  struct tagLunarCal LunarCal[] = {
   { 23, 3, 2, 17, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0 }, /* 1936 */
   { 41, 0, 4, 23, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1 },
   { 30, 7, 5, 28, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1 },
   { 49, 0, 6, 33, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 },
   { 38, 0, 0, 38, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 }, /* 1940 */
   { 26, 6, 2, 44, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0 },
   { 45, 0, 3, 49, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 },
   { 35, 0, 4, 54, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1 },
   { 24, 4, 5, 59, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1 }, /* 1944 */
   { 43, 0, 0, 5, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1 },
   { 32, 0, 1, 10, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1 },
   { 21, 2, 2, 15, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 },
   { 40, 0, 3, 20, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 }, /* 1948 */
{ 28, 7, 5, 26, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 },
   { 47, 0, 6, 31, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1 },
   { 36, 0, 0, 36, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 },
   { 26, 5, 1, 41, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 }, /* 1952 */
   { 44, 0, 3, 47, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1 },
   { 33, 0, 4, 52, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0 },
   { 23, 3, 5, 57, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1 },
   { 42, 0, 6, 2, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1 }, /* 1956 */
   { 30, 8, 1, 8, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0 },
   { 48, 0, 2, 13, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0 },
   { 38, 0, 3, 18, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 },
   { 27, 6, 4, 23, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0 }, /* 1960 */
   { 45, 0, 6, 29, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0 },
   { 35, 0, 0, 34, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1 },
   { 24, 4, 1, 39, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0 },
   { 43, 0, 2, 44, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0 }, /* 1964 */
   { 32, 0, 4, 50, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1 },
   { 20, 3, 5, 55, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 },
   { 39, 0, 6, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0 },
   { 29, 7, 0, 5, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1 }, /* 1968 */
   { 47, 0, 2, 11, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1 },
   { 36, 0, 3, 16, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0 },
   { 26, 5, 4, 21, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1 },
   { 45, 0, 5, 26, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1 }, /* 1972 */
   { 33, 0, 0, 32, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1 },
   { 22, 4, 1, 37, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1 },
   { 41, 0, 2, 42, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1 },
   { 30, 8, 3, 47, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1 }, /* 1976 */
   { 48, 0, 5, 53, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1 },
   { 37, 0, 6, 58, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1 },
   { 27, 6, 0, 3, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0 },
   { 46, 0, 1, 8, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0 }, /* 1980 */
   { 35, 0, 3, 14, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1 },
   { 24, 4, 4, 19, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1 },
   { 43, 0, 5, 24, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1 },
   { 32, 10, 6, 29, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1 }, /* 1984 */
   { 50, 0, 1, 35, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0 },
   { 39, 0, 2, 40, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1 },
   { 28, 6, 3, 45, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0 },
   { 47, 0, 4, 50, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1 }, /* 1988 */
   { 36, 0, 6, 56, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0 },
   { 26, 5, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1 },
   { 45, 0, 1, 6, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0 },
   { 34, 0, 2, 11, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0 }, /* 1992 */
   { 22, 3, 4, 17, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0 },
   { 40, 0, 5, 22, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0 },
   { 30, 8, 6, 27, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1 },
   { 49, 0, 0, 32, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1 }, /* 1996 */
   { 37, 0, 2, 38, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1 },
   { 27, 5, 3, 43, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1 },
   { 46, 0, 4, 48, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1 },
   { 35, 0, 5, 53, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1 }, /* 2000 */
   { 23, 4, 0, 59, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 },
   { 42, 0, 1, 4, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 },
   { 31, 0, 2, 9, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0 },
   { 21, 2, 3, 14, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1 }, /* 2004 */
   { 39, 0, 5, 20, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1 },
   { 28, 7, 6, 25, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1 },
   { 48, 0, 0, 30, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1 },
   { 37, 0, 1, 35, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1 }, /* 2008 */
   { 25, 5, 3, 41, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 },
   { 44, 0, 4, 46, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1 },
   { 33, 0, 5, 51, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 },
   { 22, 4, 6, 56, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 }, /* 2012 */
   { 40, 0, 1, 2, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 },
   { 30, 9, 2, 7, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 },
   { 49, 0, 3, 12, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1 },
{ 38, 0, 4, 17, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0 }, /* 2016 */
   { 27, 6, 6, 23, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1 },
   { 46, 0, 0, 28, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0 },
   { 35, 0, 1, 33, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 },
   { 24, 4, 2, 38, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 }, /* 2020 */
   { 42, 0, 4, 44, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 },
   { 31, 0, 5, 49, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0 },
   { 21, 2, 6, 54, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1 },
   { 40, 0, 0, 59, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1 }, /* 2024 */
   { 28, 6, 2, 5, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0 },
   { 47, 0, 3, 10, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1 },
   { 36, 0, 4, 15, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1 },
   { 25, 5, 5, 20, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0 }, /* 2028 */
   { 43, 0, 0, 26, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1 },
   { 32, 0, 1, 31, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0 },
   { 22, 3, 2, 36, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0 } };

  #define LASTYEAR (FIRSTYEAR+sizeof(LunarCal)/sizeof(struct tagLunarCal)-1)

  /* 西历年每月之日数 */
   int SolarCal[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

  /* 西历年每月之累积日数, 平年与闰年 */
   int SolarDays[2][14] = {
   { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365, 396 },
   { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366, 397 } };

  /* 求此西历年是否为闰年, 返回 0 为平年, 1 为闰年 */
   int GetLeap( int year )
   {
   if ( year % 400 == 0 )
   return 1;
   else if ( year % 100 == 0 )
   return 0;
   else if ( year % 4 == 0 )
   return 1;
   else
   return 0;
   }

  /* 西历农历转换 */
   int CalConv( struct ConvDate *cd )
   {
   int leap, d, sm, y, im, l1, l2, acc, i, lm, kc;
   if ( cd->Source == 0 ) /* Solar */
   {
   if ( cd->SolarYear <= FIRSTYEAR || cd->SolarYear > LASTYEAR )
   return 1;
   sm = cd->SolarMonth - 1;
   if ( sm < 0 || sm > 11 )
   return 2;
   leap = GetLeap( cd->SolarYear );
   if ( sm == 1 )
   d = leap + 28;
   else
   d = SolarCal[sm];
   if ( cd->SolarDate < 1 || cd->SolarDate > d )
   return 3;
   y = cd->SolarYear - FIRSTYEAR;
   acc = SolarDays[leap][sm] + cd->SolarDate;
   cd->Weekday = ( acc + LunarCal[y].BaseWeekday ) % 7;
   kc = acc + LunarCal[y].BaseKanChih;
   cd->Kan = kc % 10;
   cd->Chih = kc % 12;
   if ( acc <= LunarCal[y].BaseDays )
   {
   y--;
   cd->LunarYear = cd->SolarYear - 1;
   leap = GetLeap( cd->LunarYear );
   sm += 12;
     acc = SolarDays[leap][sm] + cd->SolarDate;
}
else
cd->LunarYear = cd->SolarYear;
l1 = LunarCal[y].BaseDays;
for ( i=0; i<13; i++ )
{
l2 = l1 + LunarCal[y].MonthDays[i] + 29;
if ( acc <= l2 )
break;
l1 = l2;
}
cd->LunarMonth = i + 1;
cd->LunarDate = acc - l1;
im = LunarCal[y].Intercalation;
if ( im != 0 && cd->LunarMonth > im )
{
cd->LunarMonth--;
if ( cd->LunarMonth == im )
cd->LunarMonth = -im;
}
if ( cd->LunarMonth > 12 )
cd->LunarMonth -= 12;
}
else /* Lunar */
{
if ( cd->LunarYear < FIRSTYEAR || cd->LunarYear >= LASTYEAR )
return 1;
y = cd->LunarYear - FIRSTYEAR;
im = LunarCal[y].Intercalation;
lm = cd->LunarMonth;
if ( lm < 0 )
{
if ( lm != -im )
return 2;
}
else if ( lm < 1 || lm > 12 )
return 2;
if ( im != 0 )
{
if ( lm > im )
lm++;
else if ( lm == -im )
lm = im + 1;
}
lm--;
if ( cd->LunarDate > LunarCal[y].MonthDays[lm] + 29 )
return 3;
acc = LunarCal[y].BaseDays;
for ( i=0; i acc += LunarCal[y].MonthDays[i] + 29;
acc += cd->LunarDate;
leap = GetLeap( cd->LunarYear );
for ( i=13; i>=0; i-- )
if ( acc > SolarDays[leap][i] )
break;
cd->SolarDate = acc - SolarDays[leap][i];
if ( i <= 11 )
{
cd->SolarYear = cd->LunarYear;
cd->SolarMonth = i + 1;
}
else
{
cd->SolarYear = cd->LunarYear + 1;
cd->SolarMonth = i - 11;
}
leap = GetLeap( cd->SolarYear );
y = cd->SolarYear - FIRSTYEAR;
acc = SolarDays[leap][cd->SolarMonth-1] + cd->SolarDate;
cd->Weekday = ( acc + LunarCal[y].BaseWeekday ) % 7;
kc = acc + LunarCal[y].BaseKanChih;
cd->Kan = kc % 10;
cd->Chih = kc % 12;
}
return 0;
}

 

 

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