[转载]c#农历

转载自：http://www.cnblogs.com/zjfree/archive/2011/01/13/1934231.html

网上已经有很多C#的农历类，但看来都很复杂，其实C#中已经提供了中国的农历类ChineseLunisolarCalendar。但未提供节气和节日功能。

根据网上的方法字节写了一个中国农历类！

ChinaDate.GetChinaDate(DateTime dt) 获取农历日期

ChinaDate.GetYear(DateTime dt) 获取农历年份（包含天干地支和生肖信息）

ChinaDate.GetMonth(DateTime dt) 获取农历月份

ChinaDate.GetDay(DateTime dt) 获取农历日期

ChinaDate.GetSolarTerm(DateTime dt) 获取节气

ChinaDate.GetHoliday(DateTime dt) 获取公历节日

ChinaDate.GetChinaHoliday(DateTime dt) 获取农历节日

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using System.Globalization; using System.Collections; using System;   /// <summary> /// 中国农历 /// </summary> /// 日期：2011-01-13 /// 作者：http://www.cnblogs.com/zjfree/ 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, 43467, 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" , "消费者权益日" );          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;      } }

类代码下载：http://files.cnblogs.com/zjfree/ChinaDate.rar

转载于:https://www.cnblogs.com/linyefeilyft/archive/2013/03/13/2957097.html