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C# 获取农历日期

C# 获取农历日期

作者: Rinaloving | 来源:发表于2021-12-10 18:23 被阅读0次
    引入 using System.Globalization;
    类:
    /// <summary>
        ///  C# 获取农历日期
        /// </summary>
        public class ChineseCalendarHelper
        {
    
    
            ///<summary>
            /// 实例化一个 ChineseLunisolarCalendar
            ///</summary>
            private static readonly ChineseLunisolarCalendar ChineseCal = new ChineseLunisolarCalendar();
    
            ///<summary>
            /// 十天干
            ///</summary>
            private static string[] tg = { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };
    
            ///<summary>
            /// 十二地支
            ///</summary>
            private static string[] dz = { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };
    
            ///<summary>
            /// 十二生肖
            ///</summary>
            private static string[] sx = { "鼠", "牛", "虎", "免", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };
    
            ///<summary>
            /// 返回农历天干地支年
            ///</summary>
            ///<param name="year">农历年</param>
            ///<return s></return s>
            public static string GetLunisolarYear(int year)
            {
                if (year > 3)
                {
                    int tgIndex = (year - 4) % 10;
                    int dzIndex = (year - 4) % 12;
    
                    return string.Concat(tg[tgIndex], dz[dzIndex], "[", sx[dzIndex], "]");
                }
    
                throw new ArgumentOutOfRangeException("无效的年份!");
            }
    
            ///<summary>
            /// 农历月
            ///</summary>
    
            ///<return s></return s>
            private static string[] months = { "正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二(腊)" };
    
            ///<summary>
            /// 农历日
            ///</summary>
            private static string[] days1 = { "初", "十", "廿", "三" };
            ///<summary>
            /// 农历日
            ///</summary>
            private static string[] days = { "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" };
    
    
            ///<summary>
            /// 返回农历月
            ///</summary>
            ///<param name="month">月份</param>
            ///<return s></return s>
            public static string GetLunisolarMonth(int month)
            {
                if (month < 13 && month > 0)
                {
                    return months[month - 1];
                }
    
                throw new ArgumentOutOfRangeException("无效的月份!");
            }
    
            ///<summary>
            /// 返回农历日
            ///</summary>
            ///<param name="day">天</param>
            ///<return s></return s>
            public static string GetLunisolarDay(int day)
            {
                if (day > 0 && day < 32)
                {
                    if (day != 20 && day != 30)
                    {
                        return string.Concat(days1[(day - 1) / 10], days[(day - 1) % 10]);
                    }
                    else
                    {
                        return string.Concat(days[(day - 1) / 10], days1[1]);
                    }
                }
    
                throw new ArgumentOutOfRangeException("无效的日!");
            }
    
    
    
            ///<summary>
            /// 根据公历获取农历日期
            ///</summary>
            ///<param name="datetime">公历日期</param>
            ///<return s></return s>
            public static string GetChineseDateTime(DateTime datetime)
            {
                int year = ChineseCal.GetYear(datetime);
                int month = ChineseCal.GetMonth(datetime);
                int day = ChineseCal.GetDayOfMonth(datetime);
                //获取闰月, 0 则表示没有闰月
                int leapMonth = ChineseCal.GetLeapMonth(year);
    
                bool isleap = false;
    
                if (leapMonth > 0)
                {
                    if (leapMonth == month)
                    {
                        //闰月
                        isleap = true;
                        month--;
                    }
                    else if (month > leapMonth)
                    {
                        month--;
                    }
                }
    
                return string.Concat(GetLunisolarYear(year), "年 ", isleap ? "闰 " : string.Empty, GetLunisolarMonth(month), "月", GetLunisolarDay(day));
            }
        }
    
    调用 :
    ChineseCalendarHelper.GetChineseDateTime(DateTime.Now)
    
    
    农历日期.png

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