C# 农历 操作常用类 源码

public static class ChinaDate{private static ChineseLunisolarCalendar china = new ChineseLunisolarCalendar();private static Hashtable gHoliday = new Hashtable();private static Hashtable nHoliday = new Hashtable();private static string[] JQ = { "小寒", "大寒", "立春", "雨水", "惊蛰", "春分", "清明", "谷雨", "立夏", "小满", "芒种", "夏至", "小暑", "大暑", "立秋", "处暑", "白露", "秋分", "寒露", "霜降", "立冬", "小雪", "大雪", "冬至" };private static int[] JQData = { 0, 21208, 42467, 63836, 85337, 107014, 128867, 150921, 173149, 195551, 218072, 240693, 263343, 285989, 308563, 331033, 353350, 375494, 397447, 419210, 440795, 462224, 483532, 504758 };static ChinaDate(){//公历节日gHoliday.Add("0101", "元旦");gHoliday.Add("0214", "情人节");gHoliday.Add("0305", "雷锋日");gHoliday.Add("0308", "妇女节");gHoliday.Add("0312", "植树节");gHoliday.Add("0315", "消权日");gHoliday.Add("0401", "愚人节");gHoliday.Add("0501", "劳动节");gHoliday.Add("0504", "青年节");gHoliday.Add("0601", "儿童节");gHoliday.Add("0701", "建党节");gHoliday.Add("0801", "建军节");gHoliday.Add("0910", "教师节");gHoliday.Add("1001", "国庆节");gHoliday.Add("1224", "平安夜");gHoliday.Add("1225", "圣诞节");//农历节日nHoliday.Add("0101", "春节");nHoliday.Add("0115", "元宵节");nHoliday.Add("0505", "端午节");nHoliday.Add("0815", "中秋节");nHoliday.Add("0909", "重阳节");nHoliday.Add("1208", "腊八节");}/// <summary>/// 获取农历/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetChinaDate(DateTime dt){if (dt > china.MaxSupportedDateTime || dt < china.MinSupportedDateTime){//日期范围：1901 年 2 月 19 日 - 2101 年 1 月 28 日throw new Exception(string.Format("日期超出范围！必须在{0}到{1}之间！", china.MinSupportedDateTime.ToString("yyyy-MM-dd"), china.MaxSupportedDateTime.ToString("yyyy-MM-dd")));}string str = string.Format("{0} {1}{2}", GetYear(dt), GetMonth(dt), GetDay(dt));string strJQ = GetSolarTerm(dt);if (strJQ != ""){str = " (" strJQ ")";}string strHoliday = GetHoliday(dt);if (strHoliday != ""){str = " " strHoliday;}string strChinaHoliday = GetChinaHoliday(dt);if (strChinaHoliday != ""){str = " " strChinaHoliday;}return str;}/// <summary>/// 获取农历年份/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetYear(DateTime dt){int yearIndex = china.GetSexagenaryYear(dt);string yearTG = " 甲乙丙丁戊己庚辛壬癸";string yearDZ = " 子丑寅卯辰巳午未申酉戌亥";string yearSX = " 鼠牛虎兔龙蛇马羊猴鸡狗猪";int year = china.GetYear(dt);int yTG = china.GetCelestialStem(yearIndex);int yDZ = china.GetTerrestrialBranch(yearIndex);string str = string.Format("[{1}]{2}{3}{0}", year, yearSX[yDZ], yearTG[yTG], yearDZ[yDZ]);return str;}/// <summary>/// 获取农历月份/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetMonth(DateTime dt){int year = china.GetYear(dt);int iMonth = china.GetMonth(dt);int leapMonth = china.GetLeapMonth(year);bool isLeapMonth = iMonth == leapMonth;if (leapMonth != 0 && iMonth >= leapMonth){iMonth--;}string szText = "正二三四五六七八九十";string strMonth = isLeapMonth ? "闰" : "";if (iMonth <= 10){strMonth = szText.Substring(iMonth - 1, 1);}else if (iMonth == 11){strMonth = "十一";}else{strMonth = "腊";}return strMonth "月";}/// <summary>/// 获取农历日期/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetDay(DateTime dt){int iDay = china.GetDayOfMonth(dt);string szText1 = "初十廿三";string szText2 = "一二三四五六七八九十";string strDay;if (iDay == 20){strDay = "二十";}else if (iDay == 30){strDay = "三十";}else{strDay = szText1.Substring((iDay - 1) / 10, 1);strDay = strDay szText2.Substring((iDay - 1) % 10, 1);}return strDay;}/// <summary>/// 获取节气/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetSolarTerm(DateTime dt){DateTime dtBase = new DateTime(1900, 1, 6, 2, 5, 0);DateTime dtNew;double num;int y;string strReturn = "";y = dt.Year;for (int i = 1; i <= 24; i ){num = 525948.76 * (y - 1900) JQData[i - 1];dtNew = dtBase.AddMinutes(num);if (dtNew.DayOfYear == dt.DayOfYear){strReturn = JQ[i - 1];}}return strReturn;}/// <summary>/// 获取公历节日/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetHoliday(DateTime dt){string strReturn = "";object g = gHoliday[dt.Month.ToString("00") dt.Day.ToString("00")];if (g != null){strReturn = g.ToString();}return strReturn;}/// <summary>/// 获取农历节日/// </summary>/// <param name="dt"></param>/// <returns></returns>public static string GetChinaHoliday(DateTime dt){string strReturn = "";int year = china.GetYear(dt);int iMonth = china.GetMonth(dt);int leapMonth = china.GetLeapMonth(year);int iDay = china.GetDayOfMonth(dt);if (china.GetDayOfYear(dt) == china.GetDaysInYear(year)){strReturn = "除夕";}else if (leapMonth != iMonth){if (leapMonth != 0 && iMonth >= leapMonth){iMonth--;}object n = nHoliday[iMonth.ToString("00") iDay.ToString("00")];if (n != null){if (strReturn == ""){strReturn = n.ToString();}else{strReturn = " " n.ToString();}}}return strReturn;}}