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用Delphi处理公历到农历的转换  

2012-10-12 23:20:37|  分类: delphi xe2 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |
  boymaster
  摘要:公历到农历的转换
  关键字:日历,农历,转换
  类别:Object Pascal
  
  unit calfunc;
  interface
  uses SysUtils,Windows;
  const
   START_YEAR=1901;
   END_YEAR=2050;
  //返回iYear年iMonth月的天数 1年1月 --- 65535年12月
  function MonthDays(iYear,iMonth:Word):Word;
  //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
  function LunarMonthDays(iLunarYear,iLunarMonth:Word):Longword;
  //返回阴历iLunarYear年的总天数 1901年1月---2050年12月
  function LunarYearDays(iLunarYear:Word):Word;
  //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
  function GetLeapMonth(iLunarYear:Word):Word;
  //把iYear年格式化成天干记年法表示的字符串
  procedure FormatLunarYear(iYear:Word;var pBuffer:string);overload;
  function FormatLunarYear(iYear:Word):string;overload;
  //把iMonth格式化成中文字符串
  procedure FormatMonth(iMonth:Word;var pBuffer:string;bLunar:Boolean=True);overload;
  function FormatMonth(iMonth:Word;bLunar:Boolean=True):string;overload;
  //把iDay格式化成中文字符串
  procedure FormatLunarDay(iDay:Word;var pBuffer:string);overload;
  function FormatLunarDay(iDay:Word):string;overload;
  //计算公历两个日期间相差的天数 1年1月1日 --- 65535年12月31日
  function CalcDateDiff(iEndYear,iEndMonth,iEndDay:Word;iStartYear:Word=START_YEAR;iStartMonth:Word=1;iStartDay:Word=1):Longword;overload;
  function CalcDateDiff(EndDate,StartDate:TDateTime):Longword;overload;
  //计算公历iYear年iMonth月iDay日对应的阴历日期,返回对应的阴历节气 0-24
  //1901年1月1日---2050年12月31日
  function GetLunarHolDay(InDate:TDateTime):string;overload;
  function GetLunarHolDay(iYear,iMonth,iDay:Word):string;overload;
  //private function--------------------------------------
  //计算从1901年1月1日过iSpanDays天后的阴历日期
  procedure l_CalcLunarDate(var iYear,iMonth,iDay:Word;iSpanDays:Longword);
  //计算公历iYear年iMonth月iDay日对应的节气 0-24,0表不是节气
  function l_GetLunarHolDay(iYear,iMonth,iDay:Word):Word;
  implementation
  var
  //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
   gLunarMonthDay:array[0..149] of Word=(
   //测试数据只有1901.1.1 --2050.12.31
   $4ae0, $a570, $5268, $d260, $d950, $6aa8, $56a0, $9ad0, $4ae8, $4ae0, //1910
   $a4d8, $a4d0, $d250, $d548, $b550, $56a0, $96d0, $95b0, $49b8, $49b0, //1920
   $a4b0, $b258, $6a50, $6d40, $ada8, $2b60, $9570, $4978, $4970, $64b0, //1930
   $d4a0, $ea50, $6d48, $5ad0, $2b60, $9370, $92e0, $c968, $c950, $d4a0, //1940
   $da50, $b550, $56a0, $aad8, $25d0, $92d0, $c958, $a950, $b4a8, $6ca0, //1950
   $b550, $55a8, $4da0, $a5b0, $52b8, $52b0, $a950, $e950, $6aa0, $ad50, //1960
   $ab50, $4b60, $a570, $a570, $5260, $e930, $d950, $5aa8, $56a0, $96d0, //1970
   $4ae8, $4ad0, $a4d0, $d268, $d250, $d528, $b540, $b6a0, $96d0, $95b0, //1980
   $49b0, $a4b8, $a4b0, $b258, $6a50, $6d40, $ada0, $ab60, $9370, $4978, //1990
   $4970, $64b0, $6a50, $ea50, $6b28, $5ac0, $ab60, $9368, $92e0, $c960, //2000
   $d4a8, $d4a0, $da50, $5aa8, $56a0, $aad8, $25d0, $92d0, $c958, $a950, //2010
   $b4a0, $b550, $b550, $55a8, $4ba0, $a5b0, $52b8, $52b0, $a930, $74a8, //2020
   $6aa0, $ad50, $4da8, $4b60, $9570, $a4e0, $d260, $e930, $d530, $5aa0, //2030
   $6b50, $96d0, $4ae8, $4ad0, $a4d0, $d258, $d250, $d520, $daa0, $b5a0, //2040
   $56d0, $4ad8, $49b0, $a4b8, $a4b0, $aa50, $b528, $6d20, $ada0, $55b0); //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
   gLunarMonth:array[0..74] of Byte=(
   $00, $50, $04, $00, $20, //1910
   $60, $05, $00, $20, $70, //1920
   $05, $00, $40, $02, $06, //1930
   $00, $50, $03, $07, $00, //1940
   $60, $04, $00, $20, $70, //1950
   $05, $00, $30, $80, $06, //1960
   $00, $40, $03, $07, $00, //1970
   $50, $04, $08, $00, $60, //1980
   $04, $0a, $00, $60, $05, //1990
   $00, $30, $80, $05, $00, //2000
   $40, $02, $07, $00, $50, //2010
   $04, $09, $00, $60, $04, //2020
   $00, $20, $60, $05, $00, //2030
   $30, $b0, $06, $00, $50, //2040
   $02, $07, $00, $50, $03); //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
   gLunarHolDay:array[0..1799] of Byte=(
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1901
   $96, $A4, $96, $96, $97, $87, $79, $79, $79, $69, $78, $78, //1902
   $96, $A5, $87, $96, $87, $87, $79, $69, $69, $69, $78, $78, //1903
   $86, $A5, $96, $A5, $96, $97, $88, $78, $78, $79, $78, $87, //1904
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1905
   $96, $A4, $96, $96, $97, $97, $79, $79, $79, $69, $78, $78, //1906
   $96, $A5, $87, $96, $87, $87, $79, $69, $69, $69, $78, $78, //1907
   $86, $A5, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1908
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1909
   $96, $A4, $96, $96, $97, $97, $79, $79, $79, $69, $78, $78, //1910
   $96, $A5, $87, $96, $87, $87, $79, $69, $69, $69, $78, $78, //1911
   $86, $A5, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1912
   $95, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1913
   $96, $B4, $96, $A6, $97, $97, $79, $79, $79, $69, $78, $78, //1914
   $96, $A5, $97, $96, $97, $87, $79, $79, $69, $69, $78, $78, //1915
   $96, $A5, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1916
   $95, $B4, $96, $A6, $96, $97, $78, $79, $78, $69, $78, $87, //1917
   $96, $B4, $96, $A6, $97, $97, $79, $79, $79, $69, $78, $77, //1918
   $96, $A5, $97, $96, $97, $87, $79, $79, $69, $69, $78, $78, //1919
   $96, $A5, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1920
   $95, $B4, $96, $A5, $96, $97, $78, $79, $78, $69, $78, $87, //1921
   $96, $B4, $96, $A6, $97, $97, $79, $79, $79, $69, $78, $77, //1922
   $96, $A4, $96, $96, $97, $87, $79, $79, $69, $69, $78, $78, //1923
   $96, $A5, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1924
   $95, $B4, $96, $A5, $96, $97, $78, $79, $78, $69, $78, $87, //1925
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1926
   $96, $A4, $96, $96, $97, $87, $79, $79, $79, $69, $78, $78, //1927
   $96, $A5, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1928
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1929
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1930
   $96, $A4, $96, $96, $97, $87, $79, $79, $79, $69, $78, $78, //1931
   $96, $A5, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1932
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1933
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1934
   $96, $A4, $96, $96, $97, $97, $79, $79, $79, $69, $78, $78, //1935
   $96, $A5, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1936
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1937
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1938
   $96, $A4, $96, $96, $97, $97, $79, $79, $79, $69, $78, $78, //1939
   $96, $A5, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1940
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1941
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1942
   $96, $A4, $96, $96, $97, $97, $79, $79, $79, $69, $78, $78, //1943
   $96, $A5, $96, $A5, $A6, $96, $88, $78, $78, $78, $87, $87, //1944
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1945
   $95, $B4, $96, $A6, $97, $97, $78, $79, $78, $69, $78, $77, //1946
   $96, $B4, $96, $A6, $97, $97, $79, $79, $79, $69, $78, $78, //1947
   $96, $A5, $A6, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //1948
   $A5, $B4, $96, $A5, $96, $97, $88, $79, $78, $79, $77, $87, //1949
   $95, $B4, $96, $A5, $96, $97, $78, $79, $78, $69, $78, $77, //1950
   $96, $B4, $96, $A6, $97, $97, $79, $79, $79, $69, $78, $78, //1951
   $96, $A5, $A6, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //1952
   $A5, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1953
   $95, $B4, $96, $A5, $96, $97, $78, $79, $78, $68, $78, $87, //1954
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1955
   $96, $A5, $A5, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //1956
   $A5, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1957
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1958
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1959
   $96, $A4, $A5, $A5, $A6, $96, $88, $88, $88, $78, $87, $87, //1960
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1961
   $96, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1962
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1963
   $96, $A4, $A5, $A5, $A6, $96, $88, $88, $88, $78, $87, $87, //1964
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1965
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1966
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1967
   $96, $A4, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //1968
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1969
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1970
   $96, $B4, $96, $A6, $97, $97, $78, $79, $79, $69, $78, $77, //1971
   $96, $A4, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //1972
   $A5, $B5, $96, $A5, $A6, $96, $88, $78, $78, $78, $87, $87, //1973
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1974
   $96, $B4, $96, $A6, $97, $97, $78, $79, $78, $69, $78, $77, //1975
   $96, $A4, $A5, $B5, $A6, $A6, $88, $89, $88, $78, $87, $87, //1976
   $A5, $B4, $96, $A5, $96, $96, $88, $88, $78, $78, $87, $87, //1977
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $78, $87, //1978
   $96, $B4, $96, $A6, $96, $97, $78, $79, $78, $69, $78, $77, //1979
   $96, $A4, $A5, $B5, $A6, $A6, $88, $88, $88, $78, $87, $87, //1980
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $77, $87, //1981
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1982
   $95, $B4, $96, $A5, $96, $97, $78, $79, $78, $69, $78, $77, //1983
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $87, //1984
   $A5, $B4, $A6, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //1985
   $A5, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //1986
   $95, $B4, $96, $A5, $96, $97, $88, $79, $78, $69, $78, $87, //1987
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //1988
   $A5, $B4, $A5, $A5, $A6, $96, $88, $88, $88, $78, $87, $87, //1989
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $79, $77, $87, //1990
   $95, $B4, $96, $A5, $86, $97, $88, $78, $78, $69, $78, $87, //1991
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //1992
   $A5, $B3, $A5, $A5, $A6, $96, $88, $88, $88, $78, $87, $87, //1993
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1994
   $95, $B4, $96, $A5, $96, $97, $88, $76, $78, $69, $78, $87, //1995
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //1996
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //1997
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //1998
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //1999
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //2000
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2001
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //2002
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //2003
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //2004
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2005
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2006
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $69, $78, $87, //2007
   $96, $B4, $A5, $B5, $A6, $A6, $87, $88, $87, $78, $87, $86, //2008
   $A5, $B3, $A5, $B5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2009
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2010
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $78, $87, //2011
   $96, $B4, $A5, $B5, $A5, $A6, $87, $88, $87, $78, $87, $86, //2012
   $A5, $B3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $87, //2013
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2014
   $95, $B4, $96, $A5, $96, $97, $88, $78, $78, $79, $77, $87, //2015
   $95, $B4, $A5, $B4, $A5, $A6, $87, $88, $87, $78, $87, $86, //2016
   $A5, $C3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $87, //2017
   $A5, $B4, $A6, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2018
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $79, $77, $87, //2019
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $78, $87, $86, //2020
   $A5, $C3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //2021
   $A5, $B4, $A5, $A5, $A6, $96, $88, $88, $88, $78, $87, $87, //2022
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $79, $77, $87, //2023
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $78, $87, $96, //2024
   $A5, $C3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //2025
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2026
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //2027
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $78, $87, $96, //2028
   $A5, $C3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //2029
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2030
   $A5, $B4, $96, $A5, $96, $96, $88, $78, $78, $78, $87, $87, //2031
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $78, $87, $96, //2032
   $A5, $C3, $A5, $B5, $A6, $A6, $88, $88, $88, $78, $87, $86, //2033
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $78, $88, $78, $87, $87, //2034
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2035
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $78, $87, $96, //2036
   $A5, $C3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $86, //2037
   $A5, $B3, $A5, $A5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2038
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2039
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $78, $87, $96, //2040
   $A5, $C3, $A5, $B5, $A5, $A6, $87, $88, $87, $78, $87, $86, //2041
   $A5, $B3, $A5, $B5, $A6, $A6, $88, $88, $88, $78, $87, $87, //2042
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2043
   $95, $B4, $A5, $B4, $A5, $A6, $97, $87, $87, $88, $87, $96, //2044
   $A5, $C3, $A5, $B4, $A5, $A6, $87, $88, $87, $78, $87, $86, //2045
   $A5, $B3, $A5, $B5, $A6, $A6, $87, $88, $88, $78, $87, $87, //2046
   $A5, $B4, $96, $A5, $A6, $96, $88, $88, $78, $78, $87, $87, //2047
   $95, $B4, $A5, $B4, $A5, $A5, $97, $87, $87, $88, $86, $96, //2048
   $A4, $C3, $A5, $A5, $A5, $A6, $97, $87, $87, $78, $87, $86, //2049
   $A5, $C3, $A5, $B5, $A6, $A6, $87, $88, $78, $78, $87, $87); //2050
  function MonthDays(iYear,iMonth:Word):Word;
  begin
   case iMonth of
   1,3,5,7,8,10,12: Result:=31;
   4,6,9,11: Result:=30;
   2://如果是闰年
   if IsLeapYear(iYear) then
   Result:=29
   else
   Result:=28
   else
   Result:=0;
   end;
  end;
  function GetLeapMonth(iLunarYear:Word):Word;
  var
   Flag:Byte;
  begin
   Flag:=gLunarMonth[(iLunarYear-START_YEAR) div 2];
   if (iLunarYear-START_YEAR) mod 2=0 then
   Result:=Flag shr 4
   else
   Result:=Flag and $0F;
  end;
  function LunarMonthDays(iLunarYear,iLunarMonth:Word):Longword;
  var
   Height,Low:Word;
   iBit:Integer;
  begin
   if iLunarYear<START_YEAR then
   begin
   Result:=30;
   Exit;
   end;
   Height:=0;
   Low:=29;
   iBit:=16-iLunarMonth;
   if (iLunarMonth>GetLeapMonth(iLunarYear)) and (GetLeapMonth(iLunarYear)>0) then
   Dec(iBit);
   if (gLunarMonthDay[iLunarYear-START_YEAR] and (1 shl iBit))>0 then
   Inc(Low);
   if iLunarMonth=GetLeapMonth(iLunarYear) then
   if (gLunarMonthDay[iLunarYear-START_YEAR] and (1 shl (iBit-1)))>0 then
   Height:=30
   else
   Height:=29;
   Result:=MakeLong(Low,Height);
  end;
  function LunarYearDays(iLunarYear:Word):Word;
  var
   Days,i:Word;
   tmp:Longword;
  begin
   Days:=0;
   for i:=1 to 12 do
   begin
   tmp:=LunarMonthDays(iLunarYear,i);
   Days:=Days+HiWord(tmp);
   Days:=Days+LoWord(tmp);
   end;
   Result:=Days;
  end;
  procedure FormatLunarYear(iYear:Word;var pBuffer:string);
  var
   szText1,szText2,szText3:string;
  begin
   szText1:='甲乙丙丁戊己庚辛壬癸';
   szText2:='子丑寅卯辰巳午未申酉戌亥';
   szText3:='鼠牛虎免龙蛇马羊猴鸡狗猪';
   pBuffer:=Copy(szText1,((iYear-4) mod 10)*2+1,2);
   pBuffer:=pBuffer+Copy(szText2,((iYear-4) mod 12)*2+1,2);
   pBuffer:=pBuffer+' ';
   pBuffer:=pBuffer+Copy(szText3,((iYear-4) mod 12)*2+1,2);
   pBuffer:=pBuffer+'年';
  end;
  function FormatLunarYear(iYear:Word):string;
  var
   pBuffer:string;
  begin
   FormatLunarYear(iYear,pBuffer);
   Result:=pBuffer;
  end;
  procedure FormatMonth(iMonth:Word;var pBuffer:string;bLunar:Boolean);
  var
   szText:string;
  begin
   if (not bLunar) and (iMonth=1) then
   begin
   pBuffer:=' 一月';
   Exit;
   end;
   szText:='正二三四五六七八九十';
   if iMonth<=10 then
   begin
   pBuffer:=' ';
   pBuffer:=pBuffer+Copy(szText,(iMonth-1)*2+1,2);
   pBuffer:=pBuffer+'月';
   Exit;
   end;
   if iMonth=11 then
   pBuffer:='十一'
   else
   pBuffer:='十二';
   pBuffer:=pBuffer+'月';
  end;
  function FormatMonth(iMonth:Word;bLunar:Boolean):string;
  var
   pBuffer:string;
  begin
   FormatMonth(iMonth,pBuffer,bLunar);
   Result:=pBuffer;
  end;
  procedure FormatLunarDay(iDay:Word;var pBuffer:string);
  var
   szText1,szText2:string;
  begin
   szText1:='初十廿三';
   szText2:='一二三四五六七八九十';
   if (iDay<>20) and (iDay<>30) then
   begin
   pBuffer:=Copy(szText1,((iDay-1) div 10)*2+1,2);
   pBuffer:=pBuffer+Copy(szText2,((iDay-1) mod 10)*2+1,2);
   end
   else
   begin
   pBuffer:=Copy(szText1,(iDay div 10)*2+1,2);
   pBuffer:=pBuffer+'十';
   end;
  end;
  function FormatLunarDay(iDay:Word):string;
  var
   pBuffer:string;
  begin
   FormatLunarDay(iDay,pBuffer);
   Result:=pBuffer;
  end;
  function CalcDateDiff(iEndYear,iEndMonth,iEndDay:Word;iStartYear:Word;iStartMonth:Word;iStartDay:Word):Longword;
  begin
   Result:=Trunc(EncodeDate(iEndYear,iEndMonth,iEndDay)-EncodeDate(iStartYear,iStartMonth,iStartDay));
  end;
  function CalcDateDiff(EndDate,StartDate:TDateTime):Longword;
  begin
   Result:=Trunc(EndDate-StartDate);
  end;
  procedure l_CalcLunarDate(var iYear,iMonth,iDay:Word;iSpanDays:Longword);
  var
   tmp:Longword;
  begin
   //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 then
   begin
   iYear:=START_YEAR-1;
   if iSpanDays<19 then
   begin
   iMonth:=11;
   iDay:=11+Word(iSpanDays);
   end
   else
   begin
   iMonth:=12;
   iDay:=Word(iSpanDays)-18;
   end;
   Exit;
   end;
   //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:=LunarYearDays(iYear);
   while iSpanDays>=tmp do
   begin
   iSpanDays:=iSpanDays-tmp;
   Inc(iYear);
   tmp:=LunarYearDays(iYear);
   end;
   //计算月
   tmp:=LoWord(LunarMonthDays(iYear,iMonth));
   while iSpanDays>=tmp do
   begin
   iSpanDays:=iSpanDays-tmp;
   if iMonth=GetLeapMonth(iYear) then
   begin
   tmp:=HiWord(LunarMonthDays(iYear,iMonth));
   if iSpanDays<tmp then Break;
   iSpanDays:=iSpanDays-tmp;
   end;
   Inc(iMonth);
   tmp:=LoWord(LunarMonthDays(iYear,iMonth));
   end;
   //计算日
   iDay:=iDay+Word(iSpanDays);
  end;
  function l_GetLunarHolDay(iYear,iMonth,iDay:Word):Word;
  var
   Flag:Byte;
   Day:Word;
  begin
   Flag:=gLunarHolDay[(iYear-START_YEAR)*12+iMonth-1];
   if iDay<15 then
   Day:=15-((Flag shr 4) and $0f)
   else
   Day:=(Flag and $0f)+15;
   if iDay=Day then
   if iDay>15 then
   Result:=(iMonth-1)*2+2
   else
   Result:=(iMonth-1)*2+1
   else
   Result:= 0;
  end;
  function GetLunarHolDay(InDate:TDateTime):string;
  var
   i,iYear,iMonth,iDay:Word;
  begin
   DecodeDate(InDate,iYear,iMonth,iDay);
   i:=l_GetLunarHolDay(iYear,iMonth,iDay);
   case i of
   1:Result:='小 寒';
   2:Result:='大 寒';
   3:Result:='立 春';
   4:Result:='雨 水';
   5:Result:='惊 蛰';
   6:Result:='春 分';
   7:Result:='清 明';
   8:Result:='谷 雨';
   9:Result:='立 夏';
   10:Result:='小 满';
   11:Result:='芒 种';
   12:Result:='夏 至';
   13:Result:='小 暑';
   14:Result:='大 暑';
   15:Result:='立 秋';
   16:Result:='处 暑';
   17:Result:='白 露';
   18:Result:='秋 分';
   19:Result:='寒 露';
   20:Result:='霜 降';
   21:Result:='立 冬';
   22:Result:='小 雪';
   23:Result:='大 雪';
   24:Result:='冬 至';
   else
   l_CalcLunarDate(iYear,iMonth,iDay,CalcDateDiff(InDate,EncodeDate(START_YEAR,1,1)));
   Result := trim(FormatMonth(iMonth) + FormatLunarDay(iDay));
   end;
  end;
  function GetLunarHolDay(iYear,iMonth,iDay:Word):string;
  begin
   Result:=GetLunarHolDay(EncodeDate(iYear,iMonth,iDay));
  end;
  end.(王朝网络 wangchao.net.cn)
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