农历日历C#实现类

概述农历日历C#实现类

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using System;using System.Collections.Generic;using System.Text;namespace ConsoleApp{    /**  * ChineseCalendarGB.java  * copyright (c) 1997-2002 by Dr. herong Yang  * 中国农历算法- 实用于公历1901 年至2100 年之间的200 年  */    public class CnCalendar    {        static fileds        static methods        private int gregorianYear = 1901;        private int gregorianMonth = 1;        private int gregorianDate = 1;        private bool isGregorianLeap;        private int dayOfYear;        /// <summary>        /// 周日------- 一星期的第一天        /// </summary>        private int dayOfWeek;        private int chineseYear;        /// <summary>        /// 负数表示闰月        /// </summary>        private int chineseMonth;        private int chineseDate;        //24节气        private int sectionalTerm;        private int principleTerm;        public CnCalendar()        {            SetGregorian(1901,1,1);        }        public voID SetGregorian(int y,int m,int d)        {            gregorianYear = y;            gregorianMonth = m;            gregorianDate = d;            isGregorianLeap = IsGregorianLeapYear(y);            dayOfYear = DayOfYear(y,m,d);            dayOfWeek = DayOfWeek(y,d);            chineseYear = 0;            chineseMonth = 0;            chineseDate = 0;            sectionalTerm = 0;            principleTerm = 0;        }        /// <summary>        /// 根据设定的公历（阳历）年月人计算农历年月日天干地支        /// </summary>        /// <returns>是否得到结果，得到结果为0，否则为1</returns>        public int ComputeChineseFIElds()        {            if (gregorianYear < 1901 || gregorianYear > 2100) return 1;            int startYear = baseYear;            int startMonth = baseMonth;            int startDate = baseDate;            chineseYear = baseChineseYear;            chineseMonth = baseChineseMonth;            chineseDate = baseChineseDate;            // 第二个对应日，用以提高计算效率            // 公历2000 年1 月1 日，对应农历4697 年11 月25 日            if (gregorianYear >= 2000)            {                startYear = baseYear + 99;                startMonth = 1;                startDate = 1;                chineseYear = baseChineseYear + 99;                chineseMonth = 11;                chineseDate = 25;            }            int daysDiff = 0;            for (int i = startYear; i < gregorianYear; i++)            {                daysDiff += 365;                if (IsGregorianLeapYear(i)) daysDiff += 1; // leap year            }            for (int i = startMonth; i < gregorianMonth; i++)            {                daysDiff += DaysInGregorianMonth(gregorianYear,i);            }            daysDiff += gregorianDate - startDate;            chineseDate += daysDiff;            int lastDate = DaysInChineseMonth(chineseYear,chineseMonth);            int nextMonth = NextChineseMonth(chineseYear,chineseMonth);            while (chineseDate > lastDate)            {                if (Math.Abs(nextMonth) < Math.Abs(chineseMonth)) chineseYear++;                chineseMonth = nextMonth;                chineseDate -= lastDate;                lastDate = DaysInChineseMonth(chineseYear,chineseMonth);                nextMonth = NextChineseMonth(chineseYear,chineseMonth);            }            return 0;        }        /// <summary>        /// 计算24节气        /// </summary>        /// <returns></returns>        public int ComputeSolarTerms()        {            if (gregorianYear < 1901 || gregorianYear > 2100) return 1;            sectionalTerm = SectionalTerm(gregorianYear,gregorianMonth);            principleTerm = PrincipleTerm(gregorianYear,gregorianMonth);            return 0;        }        public overrIDe string ToString()        {            StringBuilder buf = new StringBuilder();            buf.Append("Gregorian Year: " + gregorianYear + "\n");            buf.Append("Gregorian Month: " + gregorianMonth + "\n");            buf.Append("Gregorian Date: " + gregorianDate + "\n");            buf.Append("Is Leap Year: " + isGregorianLeap + "\n");            buf.Append("Day of Year: " + dayOfYear + "\n");            buf.Append("Day of Week: " + dayOfWeek + "\n");            buf.Append("Chinese Year: " + chineseYear + "\n");            buf.Append("Heavenly stem: " + TIANGAN_nameS[((chineseYear - 1) % 10)] + "\n");            buf.Append("Earthly Branch: " + DIZHI_nameS[((chineseYear - 1) % 12)] + "\n");            buf.Append("Chinese Month: " + chineseMonth + "\n");            buf.Append("Chinese Date: " + chineseDate + "\n");            buf.Append("Sectional Term: " + sectionalTerm + "\n");            buf.Append("Principle Term: " + principleTerm + "\n");            return buf.ToString();        }        /// <summary>        /// 计算指定日期的明天的农历        /// </summary>        public voID RollUpOneDay()        {            dayOfWeek = dayOfWeek % 7 + 1;            dayOfYear++;            gregorianDate++;            int days = DaysInGregorianMonth(gregorianYear,gregorianMonth);            if (gregorianDate > days)            {                gregorianDate = 1;                gregorianMonth++;                if (gregorianMonth > 12)                {                    gregorianMonth = 1;                    gregorianYear++;                    dayOfYear = 1;                    isGregorianLeap = IsGregorianLeapYear(gregorianYear);                }                sectionalTerm = SectionalTerm(gregorianYear,gregorianMonth);                principleTerm = PrincipleTerm(gregorianYear,gregorianMonth);            }            chineseDate++;            days = DaysInChineseMonth(chineseYear,chineseMonth);            if (chineseDate > days)            {                chineseDate = 1;                chineseMonth = NextChineseMonth(chineseYear,chineseMonth);                if (chineseMonth == 1) chineseYear++;            }        }    }}

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