网络上收集的一个显示中国农历的类

using System;
using System.Globalization;//
namespace ChinaDate
{
    ///<summary>
    /// 显示今天农历类
    ///</summary>
    public class CNDate
    {
        private DateTime m_Date; //今天的日期

        private readonly int cny; //农历的年月日

        private int cnm; //农历的年月日

        private readonly int cnd; //农历的年月日

        private readonly int icnm; //农历闰月

        ///<summary>
        /// 显示日期构造函数
        ///</summary>

        public CNDate()
        {
            m_Date = DateTime.Today;
            ChineseLunisolarCalendar cnCalendar = new ChineseLunisolarCalendar();
            cny = cnCalendar.GetSexagenaryYear(m_Date);
            cnm = cnCalendar.GetMonth(m_Date);
            cnd = cnCalendar.GetDayOfMonth(m_Date);
            icnm = cnCalendar.GetLeapMonth(cnCalendar.GetYear(m_Date));
        }
        ///<summary>
        /// 返回格式化的公历显示
        ///</summary>
        ///<returns>格式如:2008年05月14日</returns>

        public string GetDate()
        {
            int y = m_Date.Year;
            int m = m_Date.Month;
            int d = m_Date.Day;
            return String.Format("{0}年{1:00}月{2:00}日", y, m, d);
        }
        ///<summary>
        /// 返回格式化的星期显示
        ///</summary>
        ///<returns>格式如:星期日</returns>

        public string GetWeek()
        {
            string ws = "星期";
            int w = Convert.ToInt32(m_Date.DayOfWeek);
            ws = ws + "日一二三四五六".Substring(w, 1);
            return ws;
        }
        ///<summary>
        /// 返回格式化的农历显示
        ///</summary>
        ///<returns>格式如:戊子(鼠)年润四月廿三</returns>

        public string GetCNDate()
        {
            string txcns = "";
            const string szText1 = "癸甲乙丙丁戊己庚辛壬";
            const string szText2 = "亥子丑寅卯辰巳午未申酉戌";
            const string szText3 = "猪鼠牛虎免龙蛇马羊猴鸡狗";
            int tn = cny % 10; //天干

            int dn = cny % 12;  //地支
            txcns += szText1.Substring(tn, 1);
            txcns += szText2.Substring(dn, 1);
            txcns += "("+ szText3.Substring(dn, 1) +")年";
            //格式化月份显示

            string[] cnMonth ={"","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", "十二月" };
            if (icnm > 0)
            {
                for (int i = icnm+1; i <cnMonth.Length; i++)
                    cnMonth[i] = cnMonth[i - 1];
                cnMonth[icnm] = "闰" + cnMonth[icnm-1];
            }
            txcns += cnMonth[cnm];
            string[] cnDay ={ "", "初一", "初二", "初三", "初四", "初五", "初六", "初七"
, "初八", "初九", "初十", "十一", "十二", "十三", "十四", "十五", "十六"
, "十七", "十八", "十九", "二十", "廿一", "廿二", "廿三", "廿四", "廿五"
, "廿六", "廿七", "廿八", "廿九", "三十" };
            txcns += cnDay[cnd];
            return txcns;
        }
    }
}