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代码段——C#获取完整农历日期

时间:2023-02-10 07:44:23浏览次数:39  
标签:dayinfo string C# 代码段 农历 int private public sd

代码段——C#获取完整农历日期

1.测试

  private static void Main(string[] args)
  {
     CalendarHelper cCalendar = new CalendarHelper();
     string strDateInfo = cCalendar.GetDateTidyInfo(DateTime.Parse("2023-01-20")).Fullinfo;//该日期是大寒节气
     Console.WriteLine(strDateInfo);

     string strDateInfoNow = cCalendar.GetDateTidyInfo(DateTime.Now).Fullinfo;
     Console.WriteLine(strDateInfoNow);
     Console.ReadKey();
  }

测试结果

2023年1月20日 星期五 农历壬寅(虎)年十二月廿九 大寒
2023年2月9日 星期四 农历癸卯(兔)年正月十九

2.完整的日历复制类

主要功能:

  • 获取干支纪年
  • 获取节气
  • 获取生肖年份
  • 获取星期
//日历辅助类
public class CalendarHelper
    {
        /// <summary>
        /// 结构。日期对象
        /// </summary>
        private struct structDate
        {
            public int year;
            public int month;
            public int day;
            public bool isLeap;			//是否闰月
            public int yearCyl;			//年干支
            public int monthCyl;		//月干支
            public int dayCyl;			//日干支
        }

        /// <summary>
        /// 结构。完整的日期对象
        /// </summary>
        public struct StructDateFullInfo
        {
            /// <summary>
            /// 公历年
            /// </summary>
            public int Year;

            /// <summary>
            /// 公历月
            /// </summary>
            public int Month;

            /// <summary>
            /// 公历日
            /// </summary>
            public int Day;

            /// <summary>
            /// 是否闰月
            /// </summary>
            public bool IsLeap;			//是否闰月

            /// <summary>
            /// 农历年
            /// </summary>
            public int Cyear;			//农历年

            /// <summary>
            /// 农历年名称
            /// </summary>
            public string Scyear;		//农历年名称

            /// <summary>
            /// 干支
            /// </summary>
            public string CyearCyl;		//干支年

            /// <summary>
            /// 农历月
            /// </summary>
            public int Cmonth;			//农历月

            /// <summary>
            /// 农历月名称
            /// </summary>
            public string Scmonth;		//农历月名称

            /// <summary>
            /// 干支月
            /// </summary>
            public string CmonthCyl;	//干支月

            /// <summary>
            /// 农历日
            /// </summary>
            public int Cday;			//农历日

            /// <summary>
            /// 农历日名称
            /// </summary>
            public string Scday;		//农历日名称

            /// <summary>
            /// 干支日
            /// </summary>
            public string CdayCyl;		//干支日

            /// <summary>
            /// 节气
            /// </summary>
            public string solarterm;	//节气

            /// <summary>
            /// 星期几
            /// </summary>
            public string DayInWeek;	//星期几

            /// <summary>
            /// 完整的日期信息
            /// </summary>
            public string Fullinfo;		//完整的日期信息
        }

        #region 农历相关数据

        //农历月份信息
        private readonly int[] lunarInfo = new int[]{0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,
                                    0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,
                                    0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,
                                    0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,
                                    0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,
                                    0x06ca0,0x0b550,0x15355,0x04da0,0x0a5d0,0x14573,0x052d0,0x0a9a8,0x0e950,0x06aa0,
                                    0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,
                                    0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b5a0,0x195a6,
                                    0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,
                                    0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,
                                    0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,
                                    0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,
                                    0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,
                                    0x05aa0,0x076a3,0x096d0,0x04bd7,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,
                                    0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0};

        //公历月份
        private readonly int[] solarMonth = new int[] { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

        private readonly string[] cMonthName = new string[] { "", "正月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月" };

        //天干
        private readonly string[] gan = new string[] { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };

        //地支
        private readonly string[] zhi = new string[] { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };

        //生肖
        private readonly string[] animals = new string[] { "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };

        //节气
        private readonly string[] solarTerm = new string[] {"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"};

        //节气对应数值?
        private readonly int[] solarTermInfo = new int[] {0,21208,42467,63836,85337,107014,128867,150921,173149,195551,218072
                                        ,240693,263343,285989,308563,331033,353350,375494,397447,419210,440795
                                        ,462224,483532,504758};

        //农历日子
        private readonly string[] nStr1 = new string[] { "日", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" };

        private readonly string[] nStr2 = new string[] { "初", "十", "廿", "卅", " " };

        //公历月份名称
        private readonly string[] monthName = new string[] { "JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC" };

        #endregion

        // 默认构造函数
        public CalendarHelper()
        { }

        //传回农历 y 年的总天数
        private int GetLYearDays(int y)
        {
            int sum = 348;

            for (int i = 0x8000; i > 0x8; i >>= 1)
            {
                sum += ((lunarInfo[y - 1900] & i) > 0) ? 1 : 0;
            }

            return sum + GetLeapDays(y);
        }

        //传回农历 y 年 m 月的总天数
        private int GetLMonthDays(int y, int m)
        {
            return (((lunarInfo[y - 1900] & (0x10000 >> m)) > 0) ? 30 : 29);
        }

        //传回农历 y 年闰哪个月 1-12 , 没闰传回 0
        private int GetLeapMonth(int y)
        {
            return (lunarInfo[y - 1900] & 0xf);
        }

        //传回农历 y 年闰月的天数
        private int GetLeapDays(int y)
        {
            if (GetLeapMonth(y) > 0)
            {
                return (((lunarInfo[y - 1900] & 0x10000) > 0) ? 30 : 29);
            }
            else
            {
                return 0;
            }
        }

        //得到农历日期
        private structDate GetLunar(DateTime date)
        {
            structDate sd;
            int i = 0;
            int leap = 0, temp = 0;
            DateTime baseDate = new DateTime(1900, 1, 31);	//基准时间
            int offset = (date - baseDate).Days;			//与基准时间相隔天数

            sd.dayCyl = offset + 40;
            sd.monthCyl = 14;

            for (i = 1900; i < 2050 && offset > 0; i++)
            {
                temp = GetLYearDays(i);
                offset -= temp;
                sd.monthCyl += 12;
            }
            if (offset < 0)
            {
                offset += temp;
                i--;
                sd.monthCyl -= 12;
            }

            sd.year = i;
            sd.yearCyl = i - 1864;

            //闰哪个月
            leap = GetLeapMonth(i);
            sd.isLeap = false;
            for (i = 1; i < 13 && offset > 0; i++)
            {
                //闰月
                if (leap > 0 && i == (leap + 1) && sd.isLeap == false)
                {
                    --i;
                    sd.isLeap = true;
                    temp = GetLeapDays(sd.year);
                }
                else
                {
                    temp = GetLMonthDays(sd.year, i);
                }
                //解除闰月
                if (sd.isLeap == true && i == (leap + 1))
                {
                    sd.isLeap = false;
                }
                offset -= temp;
                if (sd.isLeap == false)
                {
                    sd.monthCyl++;
                }
            }
            if (offset == 0 && leap > 0 && i == leap + 1)
            {
                if (sd.isLeap)
                {
                    sd.isLeap = false;
                }
                else
                {
                    sd.isLeap = true;
                    --i;
                    --sd.monthCyl;
                }
            }
            if (offset < 0)
            {
                offset += temp;
                --i;
                --sd.monthCyl;
            }

            sd.month = i;
            sd.day = offset + 1;

            return sd;
        }

        //传回公历 y 年 m 月的天数
        private int SolarDays(int y, int m)
        {
            if (m == 2)
            {
                return (((y % 4 == 0) && (y % 100 != 0) || (y % 400 == 0)) ? 29 : 28);
            }
            else
            {
                return (solarMonth[m]);
            }
        }

        //传入 offset 传回天干地支, 0=甲子
        private string Cyclical(int num)
        {
            return (gan[num % 10] + zhi[num % 12]);
        }

        //某年的第n个节气为几日(从0,即小寒起算);参数n:节气下标
        private int GetSolarTermDay(int y, int n)
        {
            double minutes = 0;
            //1900年1月6日:小寒
            DateTime baseDate = new DateTime(1900, 1, 6, 2, 5, 0);
            minutes = 525948.766245 * (y - 1900) + solarTermInfo[n - 1];

            DateTime veryDate = baseDate.AddMinutes(minutes);

            return veryDate.Day;
        }

        //农历日子
        private string GetCDay(int d)
        {
            string s = "";

            switch (d)
            {
                case 10:
                    s = "初十";
                    break;

                case 20:
                    s = "二十";
                    break;

                case 30:
                    s = "三十";
                    break;

                default:
                    s = nStr2[(int)System.Math.Floor((double)d / 10)];
                    s += nStr1[d % 10];
                    break;
            }
            return (s);
        }

        //获取日期信息,参数d:待检查的日子
        public StructDateFullInfo GetDateTidyInfo(DateTime d)
        {
            StructDateFullInfo dayinfo;
            structDate day = GetLunar(d);

            dayinfo.IsLeap = day.isLeap;

            dayinfo.Year = d.Year;
            dayinfo.Cyear = day.year;
            dayinfo.Scyear = animals[(day.year - 4) % 12];
            dayinfo.CyearCyl = Cyclical(day.yearCyl);//干支年

            dayinfo.Month = d.Month;
            dayinfo.Cmonth = day.month;
            dayinfo.Scmonth = cMonthName[day.month];
            dayinfo.CmonthCyl = Cyclical(day.monthCyl);//干支月

            dayinfo.Day = d.Day;
            dayinfo.Cday = day.day;
            dayinfo.Scday = GetCDay(day.day);//日子
            dayinfo.CdayCyl = Cyclical(day.dayCyl);//干支日

            switch (d.DayOfWeek)
            {
                case DayOfWeek.Sunday:
                    dayinfo.DayInWeek = "星期日";
                    break;

                case DayOfWeek.Monday:
                    dayinfo.DayInWeek = "星期一";
                    break;

                case DayOfWeek.Tuesday:
                    dayinfo.DayInWeek = "星期二";
                    break;

                case DayOfWeek.Wednesday:
                    dayinfo.DayInWeek = "星期三";
                    break;

                case DayOfWeek.Thursday:
                    dayinfo.DayInWeek = "星期四";
                    break;

                case DayOfWeek.Friday:
                    dayinfo.DayInWeek = "星期五";
                    break;

                case DayOfWeek.Saturday:
                    dayinfo.DayInWeek = "星期六";
                    break;

                default:
                    dayinfo.DayInWeek = "星期?";
                    break;
            }

            //节气
            //每个月有两个节气
            int d1 = GetSolarTermDay(d.Year, d.Month * 2 - 1);
            int d2 = GetSolarTermDay(d.Year, d.Month * 2);
            if (dayinfo.Day == d1)
            {
                dayinfo.solarterm = solarTerm[d.Month * 2 - 2];
            }
            else if (dayinfo.Day == d2)
            {
                dayinfo.solarterm = solarTerm[d.Month * 2 - 1];
            }
            else
            {
                dayinfo.solarterm = "";
            }

            dayinfo.Fullinfo = dayinfo.Year.ToString() + "年" + dayinfo.Month.ToString() + "月" + dayinfo.Day.ToString() + "日";
            dayinfo.Fullinfo += " " + dayinfo.DayInWeek;
            dayinfo.Fullinfo += " 农历" + dayinfo.CyearCyl + "(" + dayinfo.Scyear + ")年";
            if (dayinfo.IsLeap)
            {
                dayinfo.Fullinfo += "闰";
            }
            dayinfo.Fullinfo += dayinfo.Scmonth + dayinfo.Scday;
            if (dayinfo.solarterm != "")
            {
                dayinfo.Fullinfo += " " + dayinfo.solarterm;
            }

            return dayinfo;
        }
    }

标签:dayinfo,string,C#,代码段,农历,int,private,public,sd
From: https://www.cnblogs.com/shanzhiming/p/17105303.html

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