日期值的计算

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using System;
  
namespace CNCalendar
{
 public class CNDate
 {
  private const ushort START_YEAR = 1901;
  private const ushort END_YEAR = 2050;
  private string[] ConstellationName =
  {
   "白羊座", "金牛座", "双子座",
   "巨蟹座", "狮子座", "处女座",
   "天秤座", "天蝎座", "射手座",
   "摩羯座", "水瓶座", "双鱼座"};
  private string[] LunarHolDayName =
  {
   "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"};
  
  //数组gLunarDay存入阴历1901年到2100年每年中的月天数信息,
  //阴历每月只能是29或30天,一年用12(或13)个二进制位表示,对应位为1表30天,否则为29天
  private int[] gLunarMonthDay = {
             //测试数据只有1901.1.1 --2050.12.31
             0x4ae0, 0xa570, 0x5268, 0xd260, 0xd950, 0x6aa8, 0x56a0, 0x9ad0, 0x4ae8, 0x4ae0, //1910
             0xa4d8, 0xa4d0, 0xd250, 0xd548, 0xb550, 0x56a0, 0x96d0, 0x95b0, 0x49b8, 0x49b0, //1920
             0xa4b0, 0xb258, 0x6a50, 0x6d40, 0xada8, 0x2b60, 0x9570, 0x4978, 0x4970, 0x64b0, //1930
             0xd4a0, 0xea50, 0x6d48, 0x5ad0, 0x2b60, 0x9370, 0x92e0, 0xc968, 0xc950, 0xd4a0, //1940
             0xda50, 0xb550, 0x56a0, 0xaad8, 0x25d0, 0x92d0, 0xc958, 0xa950, 0xb4a8, 0x6ca0, //1950
             0xb550, 0x55a8, 0x4da0, 0xa5b0, 0x52b8, 0x52b0, 0xa950, 0xe950, 0x6aa0, 0xad50, //1960
             0xab50, 0x4b60, 0xa570, 0xa570, 0x5260, 0xe930, 0xd950, 0x5aa8, 0x56a0, 0x96d0, //1970
             0x4ae8, 0x4ad0, 0xa4d0, 0xd268, 0xd250, 0xd528, 0xb540, 0xb6a0, 0x96d0, 0x95b0, //1980
             0x49b0, 0xa4b8, 0xa4b0, 0xb258, 0x6a50, 0x6d40, 0xada0, 0xab60, 0x9370, 0x4978, //1990
             0x4970, 0x64b0, 0x6a50, 0xea50, 0x6b28, 0x5ac0, 0xab60, 0x9368, 0x92e0, 0xc960, //2000
             0xd4a8, 0xd4a0, 0xda50, 0x5aa8, 0x56a0, 0xaad8, 0x25d0, 0x92d0, 0xc958, 0xa950, //2010
             0xb4a0, 0xb550, 0xb550, 0x55a8, 0x4ba0, 0xa5b0, 0x52b8, 0x52b0, 0xa930, 0x74a8, //2020
             0x6aa0, 0xad50, 0x4da8, 0x4b60, 0x9570, 0xa4e0, 0xd260, 0xe930, 0xd530, 0x5aa0, //2030
             0x6b50, 0x96d0, 0x4ae8, 0x4ad0, 0xa4d0, 0xd258, 0xd250, 0xd520, 0xdaa0, 0xb5a0, //2040
             0x56d0, 0x4ad8, 0x49b0, 0xa4b8, 0xa4b0, 0xaa50, 0xb528, 0x6d20, 0xada0, 0x55b0}; //2050
  
  //数组gLanarMonth存放阴历1901年到2050年闰月的月份,如没有则为0,每字节存两年
  byte[] gLunarMonth={
          0x00, 0x50, 0x04, 0x00, 0x20, //1910
          0x60, 0x05, 0x00, 0x20, 0x70, //1920
          0x05, 0x00, 0x40, 0x02, 0x06, //1930
          0x00, 0x50, 0x03, 0x07, 0x00, //1940
          0x60, 0x04, 0x00, 0x20, 0x70, //1950
          0x05, 0x00, 0x30, 0x80, 0x06, //1960
          0x00, 0x40, 0x03, 0x07, 0x00, //1970
          0x50, 0x04, 0x08, 0x00, 0x60, //1980
          0x04, 0x0a, 0x00, 0x60, 0x05, //1990
          0x00, 0x30, 0x80, 0x05, 0x00, //2000
          0x40, 0x02, 0x07, 0x00, 0x50, //2010
          0x04, 0x09, 0x00, 0x60, 0x04, //2020
          0x00, 0x20, 0x60, 0x05, 0x00, //2030
          0x30, 0xb0, 0x06, 0x00, 0x50, //2040
          0x02, 0x07, 0x00, 0x50, 0x03}; //2050
  
  //数组gLanarHoliDay存放每年的二十四节气对应的阳历日期
  //每年的二十四节气对应的阳历日期几乎固定,平均分布于十二个月中
  // 1月 2月 3月 4月 5月 6月
  //小寒 大寒 立春 雨水 惊蛰 春分 清明 谷雨 立夏 小满 芒种 夏至
  // 7月 8月 9月 10月 11月 12月
  //小暑 大暑 立秋 处暑 白露 秋分 寒露 霜降 立冬 小雪 大雪 冬至
  //*********************************************************************************
  // 节气无任何确定规律,所以只好存表,要节省空间,所以....
  //**********************************************************************************}
  //数据格式说明:
  //如1901年的节气为
  // 1月 2月 3月 4月 5月 6月 7月 8月 9月 10月 11月 12月
  // 6, 21, 4, 19, 6, 21, 5, 21, 6,22, 6,22, 8, 23, 8, 24, 8, 24, 8, 24, 8, 23, 8, 22
  // 9, 6, 11,4, 9, 6, 10,6, 9,7, 9,7, 7, 8, 7, 9, 7, 9, 7, 9, 7, 8, 7, 15
  //上面第一行数据为每月节气对应日期,15减去每月第一个节气,每月第二个节气减去15得第二行
  // 这样每月两个节气对应数据都小于16,每月用一个字节存放,高位存放第一个节气数据,低位存放
  //第二个节气的数据,可得下表
  byte[] gLunarHolDay={
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1901
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x87, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1902
        0x96, 0xA5, 0x87, 0x96, 0x87, 0x87, 0x79, 0x69, 0x69, 0x69, 0x78, 0x78, //1903
        0x86, 0xA5, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x78, 0x87, //1904
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1905
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1906
        0x96, 0xA5, 0x87, 0x96, 0x87, 0x87, 0x79, 0x69, 0x69, 0x69, 0x78, 0x78, //1907
        0x86, 0xA5, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1908
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1909
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1910
        0x96, 0xA5, 0x87, 0x96, 0x87, 0x87, 0x79, 0x69, 0x69, 0x69, 0x78, 0x78, //1911
        0x86, 0xA5, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1912
        0x95, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1913
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1914
        0x96, 0xA5, 0x97, 0x96, 0x97, 0x87, 0x79, 0x79, 0x69, 0x69, 0x78, 0x78, //1915
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1916
        0x95, 0xB4, 0x96, 0xA6, 0x96, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x87, //1917
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x77, //1918
        0x96, 0xA5, 0x97, 0x96, 0x97, 0x87, 0x79, 0x79, 0x69, 0x69, 0x78, 0x78, //1919
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1920
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x87, //1921
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x77, //1922
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x87, 0x79, 0x79, 0x69, 0x69, 0x78, 0x78, //1923
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1924
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x87, //1925
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1926
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x87, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1927
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1928
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1929
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1930
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x87, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1931
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1932
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1933
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1934
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1935
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1936
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1937
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1938
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1939
        0x96, 0xA5, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1940
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1941
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1942
        0x96, 0xA4, 0x96, 0x96, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1943
        0x96, 0xA5, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1944
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1945
        0x95, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x77, //1946
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1947
        0x96, 0xA5, 0xA6, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //1948
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x79, 0x78, 0x79, 0x77, 0x87, //1949
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x77, //1950
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x79, 0x79, 0x79, 0x69, 0x78, 0x78, //1951
        0x96, 0xA5, 0xA6, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //1952
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1953
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x78, 0x79, 0x78, 0x68, 0x78, 0x87, //1954
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1955
        0x96, 0xA5, 0xA5, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //1956
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1957
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1958
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1959
        0x96, 0xA4, 0xA5, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1960
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1961
        0x96, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1962
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1963
        0x96, 0xA4, 0xA5, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1964
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1965
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1966
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1967
        0x96, 0xA4, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1968
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1969
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1970
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x79, 0x69, 0x78, 0x77, //1971
        0x96, 0xA4, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1972
        0xA5, 0xB5, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1973
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1974
        0x96, 0xB4, 0x96, 0xA6, 0x97, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x77, //1975
        0x96, 0xA4, 0xA5, 0xB5, 0xA6, 0xA6, 0x88, 0x89, 0x88, 0x78, 0x87, 0x87, //1976
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //1977
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x78, 0x87, //1978
        0x96, 0xB4, 0x96, 0xA6, 0x96, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x77, //1979
        0x96, 0xA4, 0xA5, 0xB5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1980
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x77, 0x87, //1981
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1982
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x78, 0x79, 0x78, 0x69, 0x78, 0x77, //1983
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x87, //1984
        0xA5, 0xB4, 0xA6, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //1985
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1986
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x79, 0x78, 0x69, 0x78, 0x87, //1987
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //1988
        0xA5, 0xB4, 0xA5, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1989
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //1990
        0x95, 0xB4, 0x96, 0xA5, 0x86, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1991
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //1992
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1993
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1994
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x76, 0x78, 0x69, 0x78, 0x87, //1995
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //1996
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //1997
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //1998
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //1999
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //2000
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2001
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //2002
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //2003
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //2004
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2005
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2006
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x69, 0x78, 0x87, //2007
        0x96, 0xB4, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x87, 0x78, 0x87, 0x86, //2008
        0xA5, 0xB3, 0xA5, 0xB5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2009
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2010
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x78, 0x87, //2011
        0x96, 0xB4, 0xA5, 0xB5, 0xA5, 0xA6, 0x87, 0x88, 0x87, 0x78, 0x87, 0x86, //2012
        0xA5, 0xB3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x87, //2013
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2014
        0x95, 0xB4, 0x96, 0xA5, 0x96, 0x97, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //2015
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x87, 0x88, 0x87, 0x78, 0x87, 0x86, //2016
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x87, //2017
        0xA5, 0xB4, 0xA6, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2018
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //2019
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x86, //2020
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //2021
        0xA5, 0xB4, 0xA5, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2022
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x79, 0x77, 0x87, //2023
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x96, //2024
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //2025
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2026
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //2027
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x96, //2028
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //2029
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2030
        0xA5, 0xB4, 0x96, 0xA5, 0x96, 0x96, 0x88, 0x78, 0x78, 0x78, 0x87, 0x87, //2031
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x96, //2032
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x86, //2033
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x78, 0x88, 0x78, 0x87, 0x87, //2034
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2035
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x96, //2036
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x86, //2037
        0xA5, 0xB3, 0xA5, 0xA5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2038
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2039
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x96, //2040
        0xA5, 0xC3, 0xA5, 0xB5, 0xA5, 0xA6, 0x87, 0x88, 0x87, 0x78, 0x87, 0x86, //2041
        0xA5, 0xB3, 0xA5, 0xB5, 0xA6, 0xA6, 0x88, 0x88, 0x88, 0x78, 0x87, 0x87, //2042
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2043
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x88, 0x87, 0x96, //2044
        0xA5, 0xC3, 0xA5, 0xB4, 0xA5, 0xA6, 0x87, 0x88, 0x87, 0x78, 0x87, 0x86, //2045
        0xA5, 0xB3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x88, 0x78, 0x87, 0x87, //2046
        0xA5, 0xB4, 0x96, 0xA5, 0xA6, 0x96, 0x88, 0x88, 0x78, 0x78, 0x87, 0x87, //2047
        0x95, 0xB4, 0xA5, 0xB4, 0xA5, 0xA5, 0x97, 0x87, 0x87, 0x88, 0x86, 0x96, //2048
        0xA4, 0xC3, 0xA5, 0xA5, 0xA5, 0xA6, 0x97, 0x87, 0x87, 0x78, 0x87, 0x86, //2049
        0xA5, 0xC3, 0xA5, 0xB5, 0xA6, 0xA6, 0x87, 0x88, 0x78, 0x78, 0x87, 0x87}; //2050
  
  
  private DateTime m_Date;
  public DateTime Date
  {
   get{ return m_Date;}
   set{ m_Date = value;}
  }
  
  public CNDate()
  {
   Date = DateTime.Today;
  }
  public CNDate(DateTime dt)
  {
   Date = dt.Date;
  }
  //计算指定日期的星座序号
  public int GetConstellation()
  {
   int Y, M, D;
   Y = m_Date.Year;
   M = m_Date.Month;
   D = m_Date.Day;
   Y = M * 100 + D;
   if (((Y >= 321) && (Y <= 419))) { return 0;}
   else if ((Y >= 420) && (Y <= 520)) { return 1;}
   else if ((Y >= 521) && (Y <= 620)) { return 2;}
   else if ((Y >= 621) && (Y <= 722)) { return 3;}
   else if ((Y >= 723) && (Y <= 822)) { return 4;}
   else if ((Y >= 823) && (Y <= 922)) { return 5;}
   else if ((Y >= 923) && (Y <= 1022)) { return 6;}
   else if ((Y >= 1023) && (Y <= 1121)) { return 7;}
   else if ((Y >= 1122) && (Y <= 1221)) { return 8;}
   else if ((Y >= 1222) || (Y <= 119)) { return 9;}
   else if ((Y >= 120) && (Y <= 218)) { return 10;}
   else if ((Y >= 219) && (Y <= 320)) { return 11;}
   else { return -1;};
  }
  
  //计算指定日期的星座名称
  public string GetConstellationName()
  {
   int Constellation;
   Constellation = GetConstellation();
   if ((Constellation >= 0) && (Constellation <= 11))
   { return ConstellationName[Constellation];}
   else
   { return "";};
  }
  
  //计算公历当天对应的节气 0-23,-1表示不是节气
  public int l_GetLunarHolDay()
  {
   byte Flag;
   int Day, iYear, iMonth, iDay;
   iYear = m_Date.Year;
   if ((iYear < START_YEAR) || (iYear > END_YEAR))
   { return -1;};
   iMonth = m_Date.Month;
   iDay = m_Date.Day;
   Flag = gLunarHolDay[(iYear - START_YEAR) * 12 + iMonth - 1];
   if (iDay < 15)
   { Day = 15 - ((Flag >> 4) & 0x0f);}
   else
   {Day = (Flag & 0x0f) + 15;};
   if (iDay == Day)
   {
    if (iDay > 15)
    { return (iMonth - 1) * 2 + 1;}
    else
    { return (iMonth - 1) * 2;}
   }
   else
   {return -1;};
  }
  
  public string FormatMonth(ushort iMonth, bool bLunar)
  {
   string szText = "正二三四五六七八九十";
   string strMonth;
   if ((!bLunar) && (iMonth == 1))
   { return "一月";}
   if (iMonth <= 10)
   {
    strMonth = "";
    strMonth = strMonth + szText.Substring(iMonth - 1, 1);
    strMonth = strMonth + "月";
    return strMonth;
   }
   if (iMonth == 11)
   { strMonth = "十一";}
   else
   { strMonth = "十二";}
   return strMonth + "月";
  }   
  
  public string FormatLunarDay(ushort iDay)
  {
   string szText1 = "初十廿三";
   string szText2 = "一二三四五六七八九十";
   string strDay;
   if ((iDay != 20) && (iDay != 30))
   {
    strDay = szText1.Substring((iDay - 1) / 10, 1);
    strDay = strDay + szText2.Substring((iDay - 1) % 10, 1);
   }
   else
   {
    strDay = szText1.Substring((iDay / 10) * 2 + 1, 2);
    strDay = strDay + "十";
   }
   return strDay;
  }
  
  public string GetLunarHolDay()
  {
   ushort iYear, iMonth, iDay;
   int i;
   TimeSpan ts;
   iYear = (ushort)(m_Date.Year);
   if ((iYear < START_YEAR) || (iYear > END_YEAR))
   { return "";};
   i = l_GetLunarHolDay();
   if ((i >= 0) && (i <= 23))
   { return LunarHolDayName[i];}
   else
   {
    ts = m_Date - (new DateTime(START_YEAR, 1, 1));
    l_CalcLunarDate(out iYear, out iMonth, out iDay, (uint)(ts.Days));
    return FormatMonth(iMonth, true) + FormatLunarDay(iDay);
   }
  }
  
  //返回阴历iLunarYear年的闰月月份,如没有返回0 1901年1月---2050年12月
  public int GetLeapMonth(ushort iLunarYear)
  {
   byte Flag;
   if ((iLunarYear < START_YEAR) || (iLunarYear > END_YEAR))
   { return 0;};
   Flag = gLunarMonth[(iLunarYear - START_YEAR) / 2];
   if ((iLunarYear - START_YEAR) % 2 == 0)
   {return Flag >> 4;}
   else
   {return Flag & 0x0F;}
  }
  
  //返回阴历iLunarYer年阴历iLunarMonth月的天数,如果iLunarMonth为闰月,
  //高字为第二个iLunarMonth月的天数,否则高字为0 1901年1月---2050年12月
  public uint LunarMonthDays(ushort iLunarYear, ushort iLunarMonth)
  {
   int Height, Low;
   int iBit;
   if ((iLunarYear < START_YEAR) || (iLunarYear > END_YEAR))
   { return 30; }
   Height = 0;
   Low = 29;
   iBit = 16 - iLunarMonth;
   if ((iLunarMonth > GetLeapMonth(iLunarYear)) && (GetLeapMonth(iLunarYear) > 0))
   {iBit--;}
   if ((gLunarMonthDay[iLunarYear - START_YEAR] & (1 << iBit)) > 0)
   {Low++;}
   if (iLunarMonth == GetLeapMonth(iLunarYear))
   {
    if ((gLunarMonthDay[iLunarYear - START_YEAR] & (1 << (iBit-1)))>0)
    {Height = 30;}
    else
    {Height = 29;}
   }
   return (uint)((uint)(Low)|(uint)(Height)<<16); //合成为uint
  }
  
  //返回阴历iLunarYear年的总天数 1901年1月---2050年12月
  public int LunarYearDays(ushort iLunarYear)
  {
   int Days;
   uint tmp;
   if ((iLunarYear < START_YEAR) || (iLunarYear > END_YEAR))
   { return 0;};
   Days = 0;
   for (ushort i=1; i <= 12; i++)
   {
    tmp = LunarMonthDays(iLunarYear, i);
    Days = Days + ((ushort)(tmp>>16) & 0xFFFF); //取高位
    Days = Days + (ushort)(tmp); //取低位
   }
   return Days;
  }
  
  //计算从1901年1月1日过iSpanDays天后的阴历日期
  public void l_CalcLunarDate(out ushort iYear, out ushort iMonth, out ushort iDay, uint iSpanDays)
  {
   uint tmp;
   //阳历1901年2月19日为阴历1901年正月初一
   //阳历1901年1月1日到2月19日共有49天
   if (iSpanDays < 49)
   {
    iYear = START_YEAR - 1;
    if (iSpanDays < 19)
    {
     iMonth = 11;
     iDay = (ushort)(11 + iSpanDays);
    }
    else
    {
     iMonth = 12;
     iDay = (ushort)(iSpanDays - 18);
    }
    return;
   }
   //下面从阴历1901年正月初一算起
   iSpanDays = iSpanDays - 49;
   iYear = START_YEAR;
   iMonth = 1;
   iDay = 1;
   //计算年
   tmp = (uint)LunarYearDays(iYear);
   while (iSpanDays >= tmp)
   {
    iSpanDays = iSpanDays - tmp;
    iYear++;
    tmp = (uint)LunarYearDays(iYear);
   }
   //计算月
   tmp = LunarMonthDays(iYear, iMonth); //取低位
   while (iSpanDays >= tmp)
   {
    iSpanDays = iSpanDays - tmp;
    if (iMonth == GetLeapMonth(iYear))
    {
     tmp = (LunarMonthDays(iYear, iMonth)>>16)&0xFFFF; //取高位
     if (iSpanDays < tmp)
     {break;}
     iSpanDays = iSpanDays - tmp;
    }
    iMonth++;
    tmp = LunarMonthDays(iYear,iMonth); //取低位
   }
   //计算日
   iDay = (ushort)(iDay + iSpanDays);
  }
  
  
  //把iYear年格式化成天干记年法表示的字符串
  public string FormatLunarYear()
  {
   string strYear;
   string szText1 = "甲乙丙丁戊己庚辛壬癸";
   string szText2 = "子丑寅卯辰巳午未申酉戌亥";
   string szText3 = "鼠牛虎免龙蛇马羊猴鸡狗猪";
   ushort iYear;
   iYear = (ushort)(m_Date.Year);
   strYear = szText1.Substring((iYear - 4) % 10, 1);
   strYear = strYear + szText2.Substring((iYear - 4) % 12, 1);
   strYear = strYear + " ";
   strYear = strYear + szText3.Substring((iYear - 4) % 12, 1);
   strYear = strYear + "年";
   return strYear;
  }
 } //class CNDate
  
 public class Test
 {
  static void Main(string[] args)
  {
   CNDate dt = new CNDate(DateTime.Today);
   Console.WriteLine("今天是:" + dt.Date.ToString() + dt.GetConstellationName());
   Console.WriteLine(dt.l_GetLunarHolDay());
   Console.WriteLine(dt.GetLunarHolDay());
   Console.WriteLine("闰月" + dt.GetLeapMonth(UInt16.Parse(args[0])));
   Console.WriteLine("2月的天数" + dt.LunarMonthDays(UInt16.Parse(args[0]), UInt16.Parse(args[1])));
   Console.WriteLine("天数" + dt.LunarYearDays(UInt16.Parse(args[0])));
   Console.WriteLine("" + dt.FormatLunarYear());
   dt.Date = DateTime.Today.AddDays(1);
   Console.WriteLine("明天是:" + dt.Date.ToString() + dt.GetConstellationName());
  }
 } //class Test

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