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", "雙子座",
"巨蟹座", "獅子座", "處女座",
"天秤座", "天蠍座", "射手座",
"摩羯座", "水瓶座", "雙魚座"};
private string[] LunarHolDayName =
{
"小寒", "大寒", "立春", "雨水",
"驚蟄", "春分", "清明", "谷雨",
"立夏", "小滿", "芒種", "夏至",
"小暑", "大暑", "立秋", "處暑",
"白露", "秋分", "寒露", "霜降",
"立冬", "小雪", "大雪", "冬至"};
// 農曆每個月的天數 ( 紀錄 1901.1.1 到 2050.12.31 的每一個月 )
// 農曆每月只能是 29 或 30 天，一年用 12（或13）個二進制位表示，對應位元為 1 表 30 天，否則為 29 天
private int[] gLunarMonthDay = {
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
// 農曆每年潤月的月份 ( 紀錄 1901.1.1 到 2050.12.31 的每一個月 )
// 如沒有則為0，每個 byte 儲存兩年的資料
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
// 位元陣列 gLanarHoliDay 存放每年的二十四節氣對應的陽曆日期
// 每年的二十四節氣對應的陽曆日期幾乎固定，平均分佈於十二個月中
// 1月 2月 3月 4月 5月 6月
// 小寒 大寒 立春 雨水 驚蟄 春分 清明 谷雨 立夏 小滿 芒種 夏至
// 7月 8月 9月 10月 11月 12月
// 小暑 大暑 立秋 處暑 白露 秋分 寒露 霜降 立冬 小雪 大雪 冬至
//*********************************************************************************
// 節氣無任何確定規律,所以只好建立表格對應
//**********************************************************************************}
// 數據格式說明:
// 如 1901 年的節氣為
// 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
// 上面第一行數據為每月節氣對應日期,15減去每月第一個節氣,每月第二個節氣減去15得第二行
// 這樣每月兩個節氣對應數據都小於16,每月用一個陣列元素存放
// 高位元(high-bit)存放第一個節氣數據,低位元(low-bit)存放第二個節氣的數據,可得下表
byte[] gLunarHoliDay ={
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;
}
/// <summary>
/// 計算指定日期的星座序號
/// </summary>
/// <returns></returns>
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; };
}
/// <summary>
/// 計算指定日期的星座名稱
/// </summary>
/// <returns></returns>
public string GetConstellationName()
{
int Constellation;
Constellation = GetConstellation();
if ((Constellation >= 0) && (Constellation <= 11))
{ return ConstellationName[Constellation]; }
else
{ return ""; };
}
/// <summary>
/// 計算國曆當天對應的節氣 0-23，-1表示不是節氣
/// </summary>
/// <returns></returns>
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 = gLunarHoliDay[(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; };
}
/// <summary>
/// 取回格式化後的月份名稱 ( 例如：一月 => 在農曆的格式叫做「正月」 )
/// </summary>
/// <param name="iMonth">月份</param>
/// <param name="bLunar">是否為農曆月份</param>
/// <returns></returns>
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";
}
/// <summary>
/// 取回格式化後的農曆日期名稱 ( 例如：一日 => 在農曆的格式叫做「初一」 )
/// </summary>
/// <param name="iDay">農曆的日期(「日」的部分)</param>
/// <returns></returns>
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;
}
/// <summary>
/// 取得今年的農曆過年的日期
/// </summary>
/// <returns></returns>
public DateTime GetLunarNewYearDate()
{
ushort iYear, iMonth, iDay;
TimeSpan ts;
iYear = (ushort)(m_Date.Year);
if ((iYear < START_YEAR) || (iYear > END_YEAR)) { return DateTime.MinValue; };
ts = m_Date - (new DateTime(START_YEAR, 1, 1));
l_CalcLunarDate(out iYear, out iMonth, out iDay, (uint)(ts.Days));
// 今年過年至今的農曆天數
uint days = 0;
for (ushort i = 1; i < iMonth; i++)
{
days += LunarMonthDays(iYear, i);
}
days += iDay - (uint)1;
return m_Date.AddDays(-days);
}
/// <summary>
/// 取得明年的農曆過年的日期
/// </summary>
/// <returns></returns>
public DateTime GetNextLunarNewYearDate()
{
ushort iYear, iMonth, iDay;
TimeSpan ts;
iYear = (ushort)(m_Date.AddYears(1).Year) ; //明年
if ((iYear < START_YEAR) || (iYear > END_YEAR)) { return DateTime.MinValue; };
ts = m_Date.AddYears(1) - (new DateTime(START_YEAR, 1, 1));
l_CalcLunarDate(out iYear, out iMonth, out iDay, (uint)(ts.Days));
// 今年過年至今的農曆天數
uint days = 0;
for (ushort i = 1; i < iMonth; i++)
{
days += LunarMonthDays(iYear, i);
}
days += iDay - (uint)1;
return m_Date.AddYears(1).AddDays(-days);
}
/// <summary>
/// 取得今年的農曆過年的日期
/// </summary>
/// <returns></returns>
public DateTime GetLunarDate(ushort iMonth, ushort iDay)
{
ushort iYear;
TimeSpan ts;
iYear = (ushort)(m_Date.Year);
if ((iYear < START_YEAR) || (iYear > END_YEAR)) { return DateTime.MinValue; };
// 今年過年至今的農曆天數
uint days = 0;
for (ushort i = 1; i < iMonth; i++)
{
days += LunarMonthDays(iYear, i);
}
days += iDay - (uint)1;
DateTime ThisNewYearDate = this.GetLunarNewYearDate();
return ThisNewYearDate.AddDays(days);
}
/// <summary>
/// 取得農曆的日期
/// </summary>
/// <returns></returns>
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);
}
}
/// <summary>
/// 返回農曆 iLunarYear 年(西元年) 的閏月月份，如沒有返回 0 （有效期間為：1901年1月---2050年12月)
/// </summary>
/// <param name="iLunarYear"></param>
/// <returns></returns>
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; }
}
/// <summary>
/// 取回農曆 iLunarYer 年與農曆 iLunarMonth 月的農曆天數
/// 如果 iLunarMonth 為閏月，高字為第二個 iLunarMonth 月的天數，否則高字為0 1901年1月---2050年12月
/// </summary>
/// <param name="iLunarYear">農曆年份</param>
/// <param name="iLunarMonth">農曆月份</param>
/// <returns></returns>
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); //合成為uint
}
/// <summary>
/// 取得農曆 iLunarYear 年的總天數
/// </summary>
/// <param name="iLunarYear">農曆年</param>
/// <returns></returns>
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;
}
/// <summary>
/// 計算從1901年1月1日過 iSpanDays 天後的農曆日期
/// </summary>
/// <param name="iYear">傳出農曆的年份</param>
/// <param name="iMonth">傳出農曆的月份</param>
/// <param name="iDay">傳出農曆的日</param>
/// <param name="iSpanDays">傳入從 1901/1/1 之後的天數</param>
public void l_CalcLunarDate(out ushort iYear, out ushort iMonth, out ushort iDay, uint iSpanDays)
{
uint tmp;
//陽曆1901年2月19日為農曆1901年正月初一
//陽曆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;
}
//下面從農曆1901年正月初一算起
iSpanDays = iSpanDays - 49;
iYear = START_YEAR;
iMonth = 1;
iDay = 1;
//計算年
tmp = (uint)LunarYearDays(iYear);
while (iSpanDays >= tmp)
{
iSpanDays = iSpanDays - tmp;
iYear++;
tmp = (uint)LunarYearDays(iYear);
}
//計算月
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
}
//計算日
iDay = (ushort)(iDay + iSpanDays);
}
/// <summary>
/// 把 iYear 年格式化成「天干記年法」表示的字串符號
/// </summary>
/// <returns></returns>
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 = "鼠牛虎免龍蛇馬羊猴雞狗豬";
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;
}
}
// 一些使用的範例程式
//for (int i = 2007; i <= 2050; i++)
//{
// CNCalendar.CNDate cd1 = new CNCalendar.CNDate(new DateTime(i, DateTime.Now.Month, DateTime.Now.Day));
// Response.Write("計算 " + i + "年隔年農曆過年的國曆日期：" + cd1.GetNextLunarNewYearDate().ToLongDateString() + "<br/>");
//}
//CNCalendar.CNDate cd = new CNCalendar.CNDate();
//Response.Write("今年農曆天數：" + cd.LunarYearDays(2007).ToString() + "<br/>");
//Response.Write("今年 01 月農曆天數：" + cd.LunarMonthDays(2007, 1).ToString() + "<br/>");
//Response.Write("今年 02 月農曆天數：" + cd.LunarMonthDays(2007, 2).ToString() + "<br/>");
//Response.Write("今年 03 月農曆天數：" + cd.LunarMonthDays(2007, 3).ToString() + "<br/>");
//Response.Write("今年 04 月農曆天數：" + cd.LunarMonthDays(2007, 4).ToString() + "<br/>");
//Response.Write("今年 05 月農曆天數：" + cd.LunarMonthDays(2007, 5).ToString() + "<br/>");
//Response.Write("今年 06 月農曆天數：" + cd.LunarMonthDays(2007, 6).ToString() + "<br/>");
//Response.Write("今年 07 月農曆天數：" + cd.LunarMonthDays(2007, 7).ToString() + "<br/>");
//Response.Write("今年 08 月農曆天數：" + cd.LunarMonthDays(2007, 8).ToString() + "<br/>");
//Response.Write("今年 09 月農曆天數：" + cd.LunarMonthDays(2007, 9).ToString() + "<br/>");
//Response.Write("今年 10 月農曆天數：" + cd.LunarMonthDays(2007, 10).ToString() + "<br/>");
//Response.Write("今年 11 月農曆天數：" + cd.LunarMonthDays(2007, 11).ToString() + "<br/>");
//Response.Write("今年 12 月農曆天數：" + cd.LunarMonthDays(2007, 12).ToString() + "<br/>");
//Response.Write("今天的農曆日期：" + cd.GetLunarHolDay() + "<br/>");
//Response.Write("今年的農曆潤月月份：" + cd.GetLeapMonth(2007) + "<br/>");
//Response.Write("計算國曆當天對應的節氣：" + cd.l_GetLunarHolDay() + "<br/>");
//Response.Write("計算今年農曆過年的國曆日期：" + cd.GetLunarNewYearDate().ToLongDateString() + "<br/>");
}