/// <summary> /// LunDay 的摘要说明。 /// 用法说明 /// 直接调用即可,比较简单 /// </summary> public class LunDay { public LunDay() { // // TODO: 在此处添加构造函数逻辑 // } //天干 private static string [] TianGan = { "甲" , "乙" , "丙" , "丁" , "戊" , "己" , "庚" , "辛" , "壬" , "癸" }; //地支 private static string [] DiZhi = { "子" , "丑" , "寅" , "卯" , "辰" , "巳" , "午" , "未" , "申" , "酉" , "戌" , "亥" }; //十二生肖 private static string [] ShengXiao = { "鼠" , "牛" , "虎" , "兔" , "龙" , "蛇" , "马" , "羊" , "猴" , "鸡" , "狗" , "猪" }; //农历日期 private static string [] DayName = { "*" , "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" }; //农历月份 private static string [] MonthName = { "*" , "正" , "二" , "三" , "四" , "五" , "六" , "七" , "八" , "九" , "十" , "十一" , "腊" }; //公历月计数天 private static int [] MonthAdd = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; //农历数据 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> /// 获取对应日期的农历 /// </summary> /// <param name="dtDay">公历日期</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; //计算到初始时间1921年2月8日的天数：1921-2-8(正月初一) nTheDate = (year - 1921) * 365 + (year - 1921) / 4 + day + MonthAdd[month - 1] - 38; if ((year % 4 == 0) && (month > 2)) nTheDate += 1; //计算天干，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) { //获取LunarData[m]的第n个二进制位的值 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; #region 格式化日期显示为三月廿四 if (k == 12) { if (month == LunarData[m] / 65536 + 1) month = 1 - month; else if (month > LunarData[m] / 65536 + 1) month = month - 1; } //生肖 calendar = ShengXiao[(year - 4) % 60 % 12].ToString() + "年 " ; //天干 calendar += TianGan[(year - 4) % 60 % 10].ToString(); //地支 calendar += DiZhi[(year - 4) % 60 % 12].ToString() + " " ; //农历月 if (month < 1) calendar += "闰" + MonthName[-1 * month].ToString() + "月" ; else calendar += MonthName[month].ToString() + "月" ; //农历日 calendar += DayName[day].ToString() + "日" ; return calendar; #endregion } }