C#编写的生辰八字计算程序

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using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            //假设一个人的公历出生时间，范围必须要在2012-2015年之间，因为本示例程序只提供了这几年的农历数据
            //修改这几个赋值，运行程序，可以得到生辰八字
            GuaZhu.nQiGuaYear = 2015;//年
            GuaZhu.nQiGuaMonth = 2;//月
            GuaZhu.nQiGuaDay = 6;//日
            GuaZhu.nQiGuaHour = 23;//时
            GuaZhu.nQiGuaMinute = 33;//分
            GuaZhu.GetSiZhu();
        }
    }
    public static class GuaZhu
    {
        public static int nQiGuaYear;
        public static int nQiGuaMonth;
        public static int nQiGuaDay;
        public static int nQiGuaHour;
        public static int nQiGuaMinute;
        public static int JieQiMonth;
        public static string PrevJQYear;
        public static string PrevJQMonth;
        public static string PrevJQDay;
        public static string PrevJQHour;
        public static string PrevJQMinute;
        public static string NextJQYear;
        public static string NextJQMonth;
        public static string NextJQDay;
        public static string NextJQHour;
        public static string NextJQMinute;
        public static string sSiZhu;
        public static string nTianGan;
        public static string yTianGan;
        public static string rTianGan;
        public static string sTianGan;
        public static string nDiZhi;
        public static string yDiZhi;
        public static string rDiZhi;
        public static string sDiZhi;
        public static int nTianGanID;
        public static int yTianGanID;
        public static int rTianGanID;
        public static string PrevJieQi;
        public static string NextJieQi;
        public static string[] TianGan = { "甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸" };
        public static string[] DiZhi = { "子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥" };
        public static string[] JieQi = {
"1/6/2012 06:44","2/4/2012 18:22","3/5/2012 12:21","4/4/2012 17:06","5/5/2012 10:20","6/5/2012 14:26","7/7/2012 00:41",
"8/7/2012 10:31","9/7/2012 13:29","10/8/2012 05:12","11/7/2012 08:26","12/7/2012 01:19","1/5/2013 12:34","2/4/2013 00:13",
"3/5/2013 18:15","4/4/2013 23:02","5/5/2013 16:18","6/5/2013 20:23","7/7/2013 06:35","8/7/2013 16:20","9/7/2013 19:16",
"10/8/2013 10:58","11/7/2013 14:14","12/7/2013 07:09","1/5/2014 18:24","2/4/2014 06:03","3/6/2014 00:02","4/5/2014 04:47",
"5/5/2014 21:59","6/6/2014 02:03","7/7/2014 12:15","8/7/2014 22:03","9/8/2014 01:01","10/8/2014 16:48","11/7/2014 20:07",
"12/7/2014 13:04","1/6/2015 00:20","2/4/2015 11:58","3/6/2015 05:55","4/5/2015 10:39","5/6/2015 03:52","6/6/2015 07:58",
"7/7/2015 18:12","8/6/2015 04:01","9/8/2015 06:59","10/8/2015 22:43","11/8/2015 01:58","12/7/2015 18:53",
};
        public static void GetnGanZhi()
        {
            int year, year1, year2;
            year = GuaZhu.nQiGuaYear;
            if (GuaZhu.nQiGuaMonth == 1)
            {
                year -= 1;
            }
            else if (GuaZhu.nQiGuaMonth == 2)
            {
                DateTime lichun, birthday1;
                lichun = DateTime.Parse("2012-2-4 18:22");
                string birthday2;
                switch (GuaZhu.nQiGuaYear - 2012)
                {
                    case 0:
                        lichun = DateTime.Parse("2012-2-4 18:22");
                        break;
                    case 1:
                        lichun = DateTime.Parse("2013-2-4 00:13");
                        break;
                    case 2: