commonclass.cs

一个通讯录源码,用C#写的.挺不错的,大家可以参考看一下.

        { 
            Date = DateTime.Today; 
        } 

        public CNDate(DateTime dt) 
        { 
            Date = dt.Date; 
        } 

        //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 string.Empty;
            }; 
        } 


        //计算公历当天对应的节气 0-23，-1表示不是节气 
        public int l_GetLunarHolDay() 
        {
            DateTime date = m_Date;

            byte Flag; 
            int Day, iYear, iMonth, iDay; 
            iYear = date.Year; 
            if ((iYear < START_YEAR) || (iYear > END_YEAR)) return -1;

            iMonth = date.Month; 
            iDay = 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 = string.Empty; 
                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 = strDay + "十"; 
            } 
            return strDay; 
        } 

        public string GetLunarHolDay(bool includeYear)
        { 
            ushort iYear, iMonth, iDay; 
            int i; 
            TimeSpan ts; 
            iYear = (ushort)(m_Date.Year); 
            if ((iYear < START_YEAR) || (iYear > END_YEAR)) 
                return string.Empty; 

            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)); 
                string result = FormatMonth(iMonth, true) + FormatLunarDay(iDay);
                if (includeYear) result = iYear.ToString() + "年" + result;
                return result;
            } 
        }

        public DateTime GetLunarHolDate()
        {
            return GetLunarHolDate(m_Date);
        }

        public DateTime GetLunarHolDate(DateTime inDate)
        {
            DateTime date = inDate;
            ushort iYear, iMonth, iDay;

            TimeSpan ts;
            iYear = (ushort)(date.Year);

            ts = m_Date - (new DateTime(START_YEAR, 1, 1));
            l_CalcLunarDate(out iYear, out iMonth, out iDay, (uint)(ts.Days));

            if (0 != (iDay) % 10)
                iDay = (ushort)((iDay) % 10);
            
            return new DateTime(iYear, iMonth, 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 
    #endregion

    /*public class CNDateTest 
    { 
        public static void TestCNDate() 
        { 
            CNDate dt = new CNDate(DateTime.Today); 
            Console.WriteLine("今天是：" + dt.Date.ToString() + dt.GetConstellationName()); 
            Console.WriteLine(dt.l_GetLunarHolDay()); 
            Console.WriteLine(dt.GetLunarHolDay(false)); 
            //Console.WriteLine("闰月" + dt.GetLeapMonth(UInt16.Parse(args[0]))); 
            //Console.WriteLine("2月的天数" + dt.LunarMonthDays(UInt16.Parse(args[0]), UInt16.Parse(args[1]))); 
            //Console.WriteLine("天数" + dt.LunarYearDays(UInt16.Parse(args[0]))); 
            Console.WriteLine("" + dt.FormatLunarYear()); 
            dt.Date = DateTime.Today.AddDays(1); 
            Console.WriteLine("明天是：" + dt.Date.ToString() + dt.GetConstellationName()); 
        } 
    } //class Test      
    */
}