C#,陰歷轉換成陽歷

private static string[] TianGan = { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };

//地支

private static string[] DiZhi = { "子", "醜", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };

//十二生肖

private static string[] ShengXiao = { "鼠", "牛", "虎", "兔", "龍", "蛇", "馬", "羊", "猴", "雞", "狗", "豬" };

//農歷日期

private static string[] DayName = {"*","初壹","初二","初三","初四","初五",

"初六","初七","初八","初九","初十",

"十壹","十二","十三","十四","十五",

"十六","十七","十八","十九","二十",

"廿壹","廿二","廿三","廿四","廿五",

"廿六","廿七","廿八","廿九","三十"};

//農歷月份

private static string[] MonthName = { "*", "正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十壹", "臘" };

//公歷月計數天

private static int[] MonthAdd = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };

//農歷數據

private static int[] LunarData = {2635,333387,1701,1748,267701,694,2391,133423,1175,396438

,3402,3749,331177,1453,694,201326,2350,465197,3221,3402

,400202,2901,1386,267611,605,2349,137515,2709,464533,1738

,2901,330421,1242,2651,199255,1323,529706,3733,1706,398762

,2741,1206,267438,2647,1318,204070,3477,461653,1386,2413

,330077,1197,2637,268877,3365,531109,2900,2922,398042,2395

,1179,267415,2635,661067,1701,1748,398772,2742,2391,330031

,1175,1611,200010,3749,527717,1452,2742,332397,2350,3222

,268949,3402,3493,133973,1386,464219,605,2349,334123,2709

,2890,267946,2773,592565,1210,2651,395863,1323,2707,265877};

/// <summary>

/// 獲取對應日期的農歷

/// </summary>

/// <param name="dtDay">公歷日期</param>

/// <returns></returns>

public string GetLunarCalendar(DateTime dtDay)

{

string sYear = dtDay.Year.ToString();

string sMonth = dtDay.Month.ToString();

string sDay = dtDay.Day.ToString();

int year;

int month;

int day;

try

{

year = int.Parse(sYear);

month = int.Parse(sMonth);

day = int.Parse(sDay);

}

catch

{

year = DateTime.Now.Year;

month = DateTime.Now.Month;

day = DateTime.Now.Day;

}

int nTheDate;

int nIsEnd;

int k, m, n, nBit, i;

string calendar = string.Empty;

//計算到初始時間1921年2月8日的天數：1921-2-8(正月初壹)

nTheDate = (year - 1921) * 365 + (year - 1921) / 4 + day + MonthAdd[month - 1] - 38;

if ((year % 4 == 0) && (month > 2))

nTheDate += 1;

//計算天幹，地支，月，日

nIsEnd = 0;

m = 0;

k = 0;

n = 0;

while (nIsEnd != 1)

{

if (LunarData[m] < 4095)

k = 11;

else

k = 12;

n = k;

while (n >= 0)

{

//獲取LunarData[m]的第n個二進制位的值

nBit = LunarData[m];

for (i = 1; i < n + 1; i++)

nBit = nBit / 2;

nBit = nBit % 2;

if (nTheDate <= (29 + nBit))

{

nIsEnd = 1;

break;

}

nTheDate = nTheDate - 29 - nBit;

n = n - 1;

}

if (nIsEnd == 1)

break;

m = m + 1;

}

year = 1921 + m;

month = k - n + 1;

day = nTheDate;

//return year + "-" + month + "-" + day;

if (k == 12)

{

if (month == LunarData[m] / 65536 + 1)

month = 1 - month;

else if (month > LunarData[m] / 65536 + 1)

month = month - 1;

}

//年

calendar = year + "年";

//生肖

calendar += ShengXiao[(year - 4) % 60 % 12].ToString() + "年 ";

// //天幹

calendar += TianGan[(year - 4) % 60 % 10].ToString();

// //地支

calendar += DiZhi[(year - 4) % 60 % 12].ToString() + " ";

//農歷月

if (month < 1)

calendar += "閏" + MonthName[-1 * month].ToString() + "月";

else

calendar += MonthName[month].ToString() + "月";

//農歷日

calendar += DayName[day].ToString() + "日";

return calendar;

}