cndate.cs

专业的办公oa代码下载 c#语言编写 三层结构

		//计算指定日期的星座序号 

		public int GetConstellation() 

		{ 

			int Y, M, D; 

			Y = m_Date.Year; 

			M = m_Date.Month; 

			D = m_Date.Day; 

			Y = M * 100 + D; 

			if (((Y >= 321) && (Y <= 419))) { return 0;} 

			else if ((Y >= 420) && (Y <= 520)) { return 1;} 

			else if ((Y >= 521) && (Y <= 620)) { return 2;} 

			else if ((Y >= 621) && (Y <= 722)) { return 3;} 

			else if ((Y >= 723) && (Y <= 822)) { return 4;} 

			else if ((Y >= 823) && (Y <= 922)) { return 5;} 

			else if ((Y >= 923) && (Y <= 1022)) { return 6;} 

			else if ((Y >= 1023) && (Y <= 1121)) { return 7;} 

			else if ((Y >= 1122) && (Y <= 1221)) { return 8;} 

			else if ((Y >= 1222) || (Y <= 119)) { return 9;} 

			else if ((Y >= 120) && (Y <= 218)) { return 10;} 

			else if ((Y >= 219) && (Y <= 320)) { return 11;} 

			else { return -1;}; 

		} 

  

		//计算指定日期的星座名称 

		public string GetConstellationName() 

		{ 

			int Constellation; 

			Constellation = GetConstellation(); 

			if ((Constellation >= 0) && (Constellation <= 11)) 

			{ return ConstellationName[Constellation];} 

			else 

			{ return "";}; 

		} 

  

		//计算公历当天对应的节气 0-23，-1表示不是节气 

		public int l_GetLunarHolDay() 

		{ 

			byte Flag; 

			int Day, iYear, iMonth, iDay; 

			iYear = m_Date.Year; 

			if ((iYear < START_YEAR) || (iYear > END_YEAR)) 

			{ return -1;}; 

			iMonth = m_Date.Month; 

			iDay = m_Date.Day; 

			Flag = gLunarHolDay[(iYear - START_YEAR) * 12 + iMonth - 1]; 

			if (iDay < 15) 

			{ Day = 15 - ((Flag >> 4) & 0x0f);} 

			else 

			{Day = (Flag & 0x0f) + 15;}; 

			if (iDay == Day) 

			{ 

				if (iDay > 15) 

				{ return (iMonth - 1) * 2 + 1;} 

				else 

				{ return (iMonth - 1) * 2;} 

			} 

			else 

			{return -1;}; 

		} 

  

		public string FormatMonth(ushort iMonth, bool bLunar) 

		{ 

			string szText = "正二三四五六七八九十"; 

			string strMonth; 

			if ((!bLunar) && (iMonth == 1)) 

			{ return "一月";} 

			if (iMonth <= 10) 

			{ 

				strMonth = ""; 

				strMonth = strMonth + szText.Substring(iMonth - 1, 1); 

				strMonth = strMonth + "月"; 

				return strMonth; 

			} 

			if (iMonth == 11) 

			{ strMonth = "十一";} 

			else 

			{ strMonth = "十二";} 

			return strMonth + "月"; 

		} 

  

  

		public string FormatLunarDay(ushort iDay) 

		{ 

			string szText1 = "初十廿三"; 

			string szText2 = "一二三四五六七八九十"; 

			string strDay; 

			if ((iDay != 20) && (iDay != 30)) 

			{ 

				strDay = szText1.Substring((iDay - 1) / 10, 1); 

				strDay = strDay + szText2.Substring((iDay - 1) % 10, 1); 

			} 

			else 

			{ 

//				strDay = szText1.Substring((iDay / 10) * 2 + 1, 2); 

				strDay = szText1.Substring((iDay / 10) , 1); 

				strDay = strDay + "十"; 

			} 

			return strDay; 

		} 

  

		public string GetLunarHolDay() 

		{ 

			ushort iYear, iMonth, iDay; 

			int i; 

			TimeSpan ts; 

			iYear = (ushort)(m_Date.Year); 

			if ((iYear < START_YEAR) || (iYear > END_YEAR)) 

			{ return "";}; 

			i = l_GetLunarHolDay(); 

			if ((i >= 0) && (i <= 23)) 

			{ return LunarHolDayName[i];} 

			else 

			{ 

				ts = m_Date - (new DateTime(START_YEAR, 1, 1)); 

				l_CalcLunarDate(out iYear, out iMonth, out iDay, (uint)(ts.Days)); 

				return FormatMonth(iMonth, true) + FormatLunarDay(iDay); 

			} 

		} 

  

		//返回阴历iLunarYear年的闰月月份，如没有返回0 1901年1月---2050年12月 

		public int GetLeapMonth(ushort iLunarYear) 

		{ 

			byte Flag; 

			if ((iLunarYear < START_YEAR) || (iLunarYear > END_YEAR)) 

			{ return 0;}; 

			Flag = gLunarMonth[(iLunarYear - START_YEAR) / 2]; 

			if ((iLunarYear - START_YEAR) % 2 == 0) 

			{return Flag >> 4;} 

			else 

			{return Flag & 0x0F;} 

		} 

  
		//返回阴历iLunarYer年阴历iLunarMonth月的天数，如果iLunarMonth为闰月， 

		//高字为第二个iLunarMonth月的天数，否则高字为0 1901年1月---2050年12月 

		public uint LunarMonthDays(ushort iLunarYear, ushort iLunarMonth) 

		{ 

			int Height, Low; 

			int iBit; 

			if ((iLunarYear < START_YEAR) || (iLunarYear > END_YEAR)) 

			{ return 30; } 

			Height = 0; 

			Low = 29; 

			iBit = 16 - iLunarMonth; 

			if ((iLunarMonth > GetLeapMonth(iLunarYear)) && (GetLeapMonth(iLunarYear) > 0)) 

			{iBit--;} 

			if ((gLunarMonthDay[iLunarYear - START_YEAR] & (1 << iBit)) > 0) 

			{Low++;} 

			if (iLunarMonth == GetLeapMonth(iLunarYear)) 

			{ 

				if ((gLunarMonthDay[iLunarYear - START_YEAR] & (1 << (iBit-1)))>0) 

				{Height = 30;} 

				else 

				{Height = 29;} 

			} 

			return (uint)((uint)(Low)|(uint)(Height)<<16); //合成为uint 

		} 

  

		//返回阴历iLunarYear年的总天数 1901年1月---2050年12月 

		public int LunarYearDays(ushort iLunarYear) 

		{ 

			int Days; 

			uint tmp; 

			if ((iLunarYear < START_YEAR) || (iLunarYear > END_YEAR)) 

			{ return 0;}; 

			Days = 0; 

			for (ushort i=1; i <= 12; i++) 

			{ 

				tmp = LunarMonthDays(iLunarYear, i); 

				Days = Days + ((ushort)(tmp>>16) & 0xFFFF); //取高位 

				Days = Days + (ushort)(tmp); //取低位 

			} 

			return Days; 

		} 
  

		//计算从1901年1月1日过iSpanDays天后的阴历日期 
		public void l_CalcLunarDate(out ushort iYear, out ushort iMonth, out ushort iDay, uint iSpanDays) 

		{ 

			uint tmp; 

			//阳历1901年2月19日为阴历1901年正月初一 

			//阳历1901年1月1日到2月19日共有49天 

			if (iSpanDays < 49) 

			{ 

				iYear = START_YEAR - 1; 

				if (iSpanDays < 19) 

				{ 

					iMonth = 11; 

					iDay = (ushort)(11 + iSpanDays); 

				} 

				else 

				{ 

					iMonth = 12; 

					iDay = (ushort)(iSpanDays - 18); 

				} 

				return; 

			} 

			//下面从阴历1901年正月初一算起 

			iSpanDays = iSpanDays - 49; 

			iYear = START_YEAR; 

			iMonth = 1; 

			iDay = 1; 

			//计算年 

			tmp = (uint)LunarYearDays(iYear); 

			while (iSpanDays >= tmp) 

			{ 

				iSpanDays = iSpanDays - tmp; 

				iYear++; 

				tmp = (uint)LunarYearDays(iYear); 

			} 

			//计算月 

			tmp = LunarMonthDays(iYear, iMonth); //取低位 

			while (iSpanDays >= tmp) 

			{ 

				iSpanDays = iSpanDays - tmp; 

				if (iMonth == GetLeapMonth(iYear)) 

				{ 

					tmp = (LunarMonthDays(iYear, iMonth)>>16)&0xFFFF; //取高位 

					if (iSpanDays < tmp) 

					{break;} 

					iSpanDays = iSpanDays - tmp; 

				} 

				iMonth++; 

				tmp = LunarMonthDays(iYear,iMonth); //取低位 

			} 

			//计算日 

			iDay = (ushort)(iDay + iSpanDays); 

		} 

  

  

		//把iYear年格式化成天干记年法表示的字符串 

		public string FormatLunarYear() 

		{ 

			string strYear; 

			string szText1 = "甲乙丙丁戊己庚辛壬癸"; 

			string szText2 = "子丑寅卯辰巳午未申酉戌亥"; 

			string szText3 = "鼠牛虎免龙蛇马羊猴鸡狗猪"; 

			ushort iYear; 

			iYear = (ushort)(m_Date.Year); 

			strYear = szText1.Substring((iYear - 4) % 10, 1); 

			strYear = strYear + szText2.Substring((iYear - 4) % 12, 1); 

			strYear = strYear + " "; 

			strYear = strYear + szText3.Substring((iYear - 4) % 12, 1); 

			strYear = strYear + "年"; 

			return strYear; 

		} 

	} //class CNDate 
}