using
System;
public
class
LunarDate
...
{
public const int MAX_YEAR = 2011;
public const int MIN_YEAR = 1900;
static readonly string[] lookupTable = new string[]
...{
"0100101101101080131", "0100101011100000219", "1010010101110000208",
"0101001001101050129", "1101001001100000216", "1101100101010000204",
"0110101010101040125", "0101011010100000213", "1001101011010000202",
"0100101011101020122", "0100101011100000210", "1010010011011060130",
"1010010011010000218", "1101001001010000206", "1101010101001050126",
"1011010101010000214", "0101011010100000204", "1001011011010020123",
"1001010110110000211", "0100100110111070201", "0100100110110000220",
"1010010010110000208", "1011001001011050128", "0110101001010000216",
"0110110101000000205", "1010110110101040124", "0010101101100000213",
"1001010101110000202", "0100100101111020123", "0100100101110000210",
"0110010010110060130", "1101010010100000217", "1110101001010000206",
"0110110101001050126", "0101101011010000214", "0010101101100000204",
"1001001101110030124", "1001001011100000211", "1100100101101070131",
"1100100101010000219", "1101010010100000208", "1101101001010060127",
"1011010101010000215", "0101011010100000205", "1010101011011040125",
"0010010111010000213", "1001001011010000202", "1100100101011020122",
"1010100101010000210", "1011010010101070129", "0110110010100000217",
"1011010101010000206", "0101010110101050127", "0100110110100000214",
"1010010110110000203", "0101001010111030124", "0101001010110000212",
"1010100101010080131", "1110100101010000218", "0110101010100000208",
"1010110101010060128", "1010101101010000215", "0100101101100000205",
"1010010101110040125", "1010010101110000213", "0101001001100000202",
"1110100100110030121", "1101100101010000209", "0101101010101070130",
"0101011010100000217", "1001011011010000206", "0100101011101050127",
"0100101011010000215", "1010010011010000203", "1101001001101040123",
"1101001001010000211", "1101010100101080131", "1011010101000000218",
"1011011010100000207", "1001011011010060128", "1001010110110000216",
"0100100110110000205", "1010010010111040125", "1010010010110000213",
"1011001001011100202", "0110101001010000220", "0110110101000000209",
"1010110110101060129", "1010101101100000217", "1001001101110000206",
"0100100101111050127", "0100100101110000215", "0110010010110000204",
"0110101001010030123", "1110101001010000210", "0110101100101080131",
"0101101011000000219", "1010101101100000207", "1001001101101050128",
"1001001011100000216", "1100100101100000205", "1101010010101040124",
"1101010010100000212", "1101101001010000201", "0101101010101020122",
"0101011010100000209", "1010101011011070129", "0010010111010000218",
"1001001011010000207", "1100100101011050126", "1010100101010000214",
"1011010010100000214"
};
/**//// <summary>十二生肖</summary>
static readonly string animalsTable = "鼠牛虎兔龙蛇马羊猴鸡狗猪";
static readonly string monthsTable = "正二三四五六七八九十寒腊";
static readonly string daysTable = "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";
/**//// <summary>天干地支</summary>
static readonly string[] chineseEra;
static LunarDate()
...{
string sky = "甲乙丙丁戊已庚辛壬癸"; //天干
string earth = "子丑寅卯辰巳午未申酉戌亥"; //地支
chineseEra = new string[60];
for (int i = 0; i < 60; i++)
chineseEra[i] = sky.Substring(i % 10, 1) + earth.Substring(i % 12, 1);
}
public LunarDate(int year, int month, int day)
...{
if ((year < MIN_YEAR) || (year > MAX_YEAR))
throw new ArgumentOutOfRangeException("year to0 large or too small");
// 计算农历年
int lunarYear;
int lunarMonth;
int lunarDay;
lunarYear = year;
// 农历新年月份
lunarMonth = Convert.ToInt32((lookupTable[lunarYear - MIN_YEAR].Substring(15, 2)));
// 农历新年日子
lunarDay = Convert.ToInt32((lookupTable[lunarYear - MIN_YEAR].Substring(17, 2))); ;
if ((month < lunarMonth) || ((month == lunarMonth) && (day < lunarDay)))
...{
lunarYear--;
// 农历新年月份
lunarMonth = Convert.ToInt32((lookupTable[lunarYear - MIN_YEAR].Substring(15, 2)));
// 农历新年日子
lunarDay = Convert.ToInt32((lookupTable[lunarYear - MIN_YEAR].Substring(17, 2))); ;
}
// 计算农历月
DateTime date = new DateTime(year, month, day);
DateTime lunarDate = new DateTime(lunarYear, lunarMonth, lunarDay);
TimeSpan span = date - lunarDate;
int dayCount = span.Days;
lunarMonth = 1;
lunarDay = 1;
bool leapMonth = false; //闰月
for (int i = 0; i < dayCount; i++)
...{
lunarDay++;
if (lunarDay == 30 + Convert.ToInt32(lookupTable[lunarYear - MIN_YEAR].Substring(lunarMonth - 1, 1)) ||
(leapMonth == true && (lunarDay == 30 + Convert.ToInt32(lookupTable[lunarYear - MIN_YEAR].Substring(12, 1)))))
...{
if (
(leapMonth == false) &&
(lunarMonth == Convert.ToInt32(lookupTable[lunarYear - MIN_YEAR].Substring(13, 2)))
)
...{
leapMonth = true;
}
else
...{
leapMonth = false;
lunarMonth++;
}
lunarDay = 1;
}
else
...{
}
}
// 计算农历日
lunarDayText = daysTable.Substring((lunarDay - 1) * 2, 2);
// 计算农历月
lunarMonthText = monthsTable.Substring(lunarMonth - 1, 1) + "月";
if (leapMonth == true) lunarMonthText = "闰" + lunarMonthText;
// 农历年
lunarYearText = Convert.ToString(lunarYear, 10) + "年";
// 计算天干地支
chineseEarText = chineseEra[(lunarYear - 4) % 60];
// 计算生肖
aminalsText = animalsTable.Substring((lunarYear - 4) % 12, 1);
}
//农历日
private string lunarDayText;
public string LunarDay ...{ get ...{ return this.lunarDayText; } }
//农历月
private string lunarMonthText;
public string LunarMonth ...{ get ...{ return this.lunarMonthText; } }
//农历年
private string lunarYearText;
public string LunarYear ...{ get ...{ return this.lunarYearText; } }
//天干地支
private string chineseEarText;
public string chineseEar ...{ get ...{ return this.chineseEarText; } }
//生肖
private string aminalsText;
public string Aminals ...{ get ...{ return this.aminalsText; } }
public override string ToString()
...{
return aminalsText + "," + chineseEarText + "," + lunarYearText + lunarMonthText + lunarDayText;
}
}
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