爱华网2005-01-11 17:04 3862人阅读 评论(7) 收藏 举报
在网上找到一段公农历转换的VB代码，经使用后发现有不少错误且代码没经优化。花了点时间研究了一下，使速度得到显著提升（同样计算1000个日期，优化前需要4秒，优化后不到1秒）。原代码的计算范围只有1901 ~ 2011 年，我重新整理了一下数据（更正了部分错误的农历资料），使代码的计算范围达到 1900 ~ 2100 年。
注：该代码的原创者已不可考，故我在这里贴出的代码中没有包含原作者的信息。但此段代码无疑有原作者很大的一部分功劳，对此表示感谢！
'公历转农历模块
'原创：互联网
'修正：阿勇 2005/1/12
'// 农历数据定义 //
'先以 H2B 函数还原成长度为 18 的字符串，其定义如下：
'前12个字节代表1-12月：1为大月，0为小月；压缩成十六进制(1-3位)
'第13位为闰月的情况，1为大月30天，0为小月29天；(4位)
'第14位为闰月的月份，如果不是闰月为0，否则给出月份(5位)
'最后4位为当年农历新年的公历日期，如0131代表1月31日；当作数值转十六进制(6-7位)
'农历常量(1899~2100，共202年）
Private Const ylData = "AB500D2,4BD0883," _
& "4AE00DB,A5700D0,54D0581,D2600D8,D9500CC,655147D,56A00D5,9AD00CA,55D027A,4AE00D2," _
& "A5B0682,A4D00DA,D2500CE,D25157E,B5500D6,56A00CC,ADA027B,95B00D3,49717C9,49B00DC," _
& "A4B00D0,B4B0580,6A500D8,6D400CD,AB5147C,2B600D5,95700CA,52F027B,49700D2,6560682," _
& "D4A00D9,EA500CE,6A9157E,5AD00D6,2B600CC,86E137C,92E00D3,C8D1783,C9500DB,D4A00D0," _
& "D8A167F,B5500D7,56A00CD,A5B147D,25D00D5,92D00CA,D2B027A,A9500D2,B550781,6CA00D9," _
& "B5500CE,535157F,4DA00D6,A5B00CB,457037C,52B00D4,A9A0883,E9500DA,6AA00D0,AEA0680," _
& "AB500D7,4B600CD,AAE047D,A5700D5,52600CA,F260379,D9500D1,5B50782,56A00D9,96D00CE," _
& "4DD057F,4AD00D7,A4D00CB,D4D047B,D2500D3,D550883,B5400DA,B6A00CF,95A1680,95B00D8," _
& "49B00CD,A97047D,A4B00D5,B270ACA,6A500DC,6D400D1,AF40681,AB600D9,93700CE,4AF057F," _
& "49700D7,64B00CC,74A037B,EA500D2,6B50883,5AC00DB,AB600CF,96D0580,92E00D8,C9600CD," _
& "D95047C,D4A00D4,DA500C9,755027A,56A00D1,ABB0781,25D00DA,92D00CF,CAB057E,A9500D6," _
& "B4A00CB,BAA047B,B5500D2,55D0983,4BA00DB,A5B00D0,5171680,52B00D8,A9300CD,795047D," _
& "6AA00D4,AD500C9,5B5027A,4B600D2,96E0681,A4E00D9,D2600CE,EA6057E,D5300D5,5AA00CB," _
& "76A037B,96D00D3,4AB0B83,4AD00DB,A4D00D0,D0B1680,D2500D7,D5200CC,DD4057C,B5A00D4," _
& "56D00C9,55B027A,49B00D2,A570782,A4B00D9,AA500CE,B25157E,6D200D6,ADA00CA,4B6137B," _
& "93700D3,49F08C9,49700DB,64B00D0,68A1680,EA500D7,6AA00CC,A6C147C,AAE00D4,92E00CA," _
& "D2E0379,C9600D1,D550781,D4A00D9,DA400CD,5D5057E,56A00D6,A6C00CB,55D047B,52D00D3," _
& "A9B0883,A9500DB,B4A00CF,B6A067F,AD500D7,55A00CD,ABA047C,A5A00D4,52B00CA,B27037A," _
& "69300D1,7330781,6AA00D9,AD500CE,4B5157E,4B600D6,A5700CB,54E047C,D1600D2,E960882," _
& "D5200DA,DAA00CF,6AA167F,56D00D7,4AE00CD,A9D047D,A2D00D4,D1500C9,F250279,D5200D1"
Private Const ylMd0 = "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 "
Private Const ylMn0 = "正二三四五六七八九十冬腊"
Private Const ylTianGan0 = "甲乙丙丁戊已庚辛壬癸"
Private Const ylDiZhi0 = "子丑寅卯辰巳午未申酉戌亥"
Private Const ylShu0 = "鼠牛虎兔龙蛇马羊猴鸡狗猪"
'公历日期转农历
Function GetYLDate(ByVal strDate As String) As String
On Error GoTo aErr
If Not IsDate(strDate) Then Exit Function
Dim setDate As Date, tYear As Integer, tMonth As Integer, tDay As Integer
setDate = CDate(strDate)
tYear = Year(setDate): tMonth = Month(setDate): tDay = Day(setDate)
'如果不是有效有日期，退出
If tYear > 2100 Or tYear < 1900 Then Exit Function
Dim daList() As String * 18, conDate As Date, thisMonths As String
Dim AddYear As Integer, AddMonth As Integer, AddDay As Integer, getDay As Integer
Dim YLyear As String, YLShuXing As String
Dim dd0 As String, mm0 As String, ganzhi(0 To 59) As String * 2
Dim RunYue As Boolean, RunYue1 As Integer, mDays As Integer, i As Integer
'加载2年内的农历数据
ReDim daList(tYear - 1 To tYear)
daList(tYear - 1) = H2B(Mid(ylData, (tYear - 1900) * 8 + 1, 7))
daList(tYear) = H2B(Mid(ylData, (tYear - 1900 + 1) * 8 + 1, 7))
AddYear = tYear
initYL:
AddMonth = CInt(Mid(daList(AddYear), 15, 2))
AddDay = CInt(Mid(daList(AddYear), 17, 2))
conDate = DateSerial(AddYear, AddMonth, AddDay) '农历新年日期
getDay = DateDiff("d", conDate, setDate) + 1 '相差天数
If getDay < 1 Then AddYear = AddYear - 1: GoTo initYL
thisMonths = Left(daList(AddYear), 14)
RunYue1 = Val("&H" & Right(thisMonths, 1)) '闰月月份
If RunYue1 > 0 Then '有闰月
thisMonths = Left(thisMonths, RunYue1) & Mid(thisMonths, 13, 1) & Mid(thisMonths, RunYue1 + 1)
End If
thisMonths = Left(thisMonths, 13)
For i = 1 To 13 '计算天数
mDays = 29 + CInt(Mid(thisMonths, i, 1))
If getDay > mDays Then
getDay = getDay - mDays
Else
If RunYue1 > 0 Then
If i = RunYue1 + 1 Then RunYue = True
If i > RunYue1 Then i = i - 1
End If
AddMonth = i
AddDay = getDay
Exit For
End If
Next
dd0 = Mid(ylMd0, (AddDay - 1) * 2 + 1, 2)
mm0 = Mid(ylMn0, AddMonth, 1) + "月"
For i = 0 To 59
ganzhi(i) = Mid(ylTianGan0, (i Mod 10) + 1, 1) + Mid(ylDiZhi0, (i Mod 12) + 1, 1)
Next i
YLyear = ganzhi((AddYear - 4) Mod 60)
YLShuXing = Mid(ylShu0, ((AddYear - 4) Mod 12) + 1, 1)
If RunYue Then mm0 = "闰" & mm0
GetYLDate = "农历" & YLyear & "(" & YLShuXing & ")年" & mm0 & dd0
aErr:
End Function
'农历转公历日期
'secondMonth 为真，则天示当 tMonth 是闰月时，取第二个月
Function GetDate(ByVal tYear As Integer, tMonth As Integer, tDay As Integer, Optional secondMonth As Boolean = False) As String
On Error GoTo aErr
If tYear > 2100 Or tYear < 1899 Or tMonth > 12 Or tMonth < 1 Or tDay > 30 Or tDay < 1 Then Exit Function
Dim thisMonths As String, ylNewYear As Date, toMonth As Integer
Dim mDays As Integer, RunYue1 As Integer, i As Integer
thisMonths = H2B(Mid(ylData, (tYear - 1899) * 8 + 1, 7))
If tDay > 29 + CInt(Mid(thisMonths, tMonth, 1)) Then Exit Function
ylNewYear = DateSerial(tYear, CInt(Mid(thisMonths, 15, 2)), CInt(Mid(thisMonths, 17, 2))) '农历新年日期
thisMonths = Left(thisMonths, 14)
RunYue1 = Val("&H" & Right(thisMonths, 1)) '闰月月份
toMonth = tMonth - 1
If RunYue1 > 0 Then '有闰月
thisMonths = Left(thisMonths, RunYue1) & Mid(thisMonths, 13, 1) & Mid(thisMonths, RunYue1 + 1)
If tMonth > RunYue1 Or (secondMonth And tMonth = RunYue1) Then toMonth = tMonth
End If
thisMonths = Left(thisMonths, 13)
mDays = 0
For i = 1 To toMonth
mDays = mDays + 29 + CInt(Mid(thisMonths, i, 1))
Next
mDays = mDays + tDay
GetDate = ylNewYear + mDays - 1
aErr:
End Function
'将压缩的阴历字符还原
Private Function H2B(ByVal strHex As String) As String
Dim i As Integer, i1 As Integer, tmpV As String
Const hStr = "0123456789ABCDEF"
Const bStr = "0000000100100011010001010110011110001001101010111100110111101111"
tmpV = UCase(Left(strHex, 3))
'十六进制转二进制
For i = 1 To Len(tmpV)
i1 = InStr(hStr, Mid(tmpV, i, 1))
H2B = H2B & Mid(bStr, (i1 - 1) * 4 + 1, 4)
Next
H2B = H2B & Mid(strHex, 4, 2)
'十六进制转十进制
H2B = H2B & "0" & CStr(Val("&H" & Right(strHex, 2)))
End Function
《附录：从网上找到的原代码》
'下面是一个关于VB的农历算法
'// 日期数据定义方法如下 //
'前12个字节代表1-12月为大月或是小月，1为大月30天，0为小月29天；
'第13位为闰月的情况，1为大月30天，0为小月29天；
'第14位为闰月的月份，如果不是闰月为0，否则给出月份（10、11、12分别用A、B、C来表示）；
'最后4位为当年家农历新年-即农历1月1日所在公历的日期，如0131代表1月31日
Function GetYLDate(tYear As Integer, tMonth As Integer, tDay As Integer, YLyear As String, YLShuXing As String, Optional IsGetGl As Boolean) As String
'tYear为要输入的年，tMonth为月，tDay为日期；
'YLyear是返回值，返回农历的年份，如甲子年；
'YLShuXing返回的是属象，如鼠；
'IsGetGl是设置是不是通过农历取公历值，如果是前三个返回相应的公历日期，而且返回值是一个公历日期。
On Error Resume Next
Dim daList(1900 To 2011) As String * 18
Dim conDate As Date, setDate As Date
Dim AddMonth As Integer, AddDay As Integer, AddYear As Integer, getDay As Integer
Dim RunYue As Boolean
If tYear > 2010 Or tYear < 1901 Then Exit Function '如果不是有效有日期，退出
'1900 to 2011
daList(1900) = "010010110110180131"
daList(1901) = "010010101110000219"
daList(1902) = "101001010111000208"
daList(1903) = "010100100110150129"
daList(1904) = "110100100110000216"
daList(1905) = "110110010101000204"
daList(1906) = "011010101010140125"
daList(1907) = "010101101010000213"
daList(1908) = "100110101101000202"
daList(1909) = "010010101110120122"
daList(1910) = "010010101110000210"
daList(1911) = "101001001101160130"
daList(1912) = "101001001101000218"
daList(1913) = "110100100101000206"
daList(1914) = "110101010100150126"
daList(1915) = "101101010101000214"
daList(1916) = "010101101010000204"
daList(1917) = "100101101101020123"
daList(1918) = "100101011011000211"
daList(1919) = "010010011011170201"
daList(1920) = "010010011011000220"
daList(1921) = "101001001011000208"
daList(1922) = "101100100101150128"
daList(1923) = "011010100101000216"
daList(1924) = "011011010100000205"
daList(1925) = "101011011010140124"
daList(1926) = "001010110110000213"
daList(1927) = "100101010111000202"
daList(1928) = "010010010111120123"
daList(1929) = "010010010111000210"
daList(1930) = "011001001011060130"
daList(1931) = "110101001010000217"
daList(1932) = "111010100101000206"
daList(1933) = "011011010100150126"
daList(1934) = "010110101101000214"
daList(1935) = "001010110110000204"
daList(1936) = "100100110111030124"
daList(1937) = "100100101110000211"
daList(1938) = "110010010110170131"
daList(1939) = "110010010101000219"
daList(1940) = "110101001010000208"
daList(1941) = "110110100101060127"
daList(1942) = "101101010101000215"
daList(1943) = "010101101010000205"
daList(1944) = "101010101101140125"
daList(1945) = "001001011101000213"
daList(1946) = "100100101101000202"
daList(1947) = "110010010101120122"
daList(1948) = "101010010101000210"
daList(1949) = "101101001010170129"
daList(1950) = "011011001010000217"
daList(1951) = "101101010101000206"
daList(1952) = "010101011010150127"
daList(1953) = "010011011010000214"
daList(1954) = "101001011011000203"
daList(1955) = "010100101011130124"
daList(1956) = "010100101011000212"
daList(1957) = "101010010101080131"
daList(1958) = "111010010101000218"
daList(1959) = "011010101010000208"
daList(1960) = "101011010101060128"
daList(1961) = "101010110101000215"
daList(1962) = "010010110110000205"
daList(1963) = "101001010111040125"
daList(1964) = "101001010111000213"
daList(1965) = "010100100110000202"
daList(1966) = "111010010011030121"
daList(1967) = "110110010101000209"
daList(1968) = "010110101010170130"
daList(1969) = "010101101010000217"
daList(1970) = "100101101101000206"
daList(1971) = "010010101110150127"
daList(1972) = "010010101101000215"
daList(1973) = "101001001101000203"
daList(1974) = "110100100110140123"
daList(1975) = "110100100101000211"
daList(1976) = "110101010010180131"
daList(1977) = "101101010100000218"
daList(1978) = "101101101010000207"
daList(1979) = "100101101101060128"
daList(1980) = "100101011011000216"
daList(1981) = "010010011011000205"
daList(1982) = "101001001011140125"
daList(1983) = "101001001011000213"
daList(1984) = "1011001001011A0202"
daList(1985) = "011010100101000220"
daList(1986) = "011011010100000209"
daList(1987) = "101011011010060129"
daList(1988) = "101010110110000217"
daList(1989) = "100100110111000206"
daList(1990) = "010010010111150127"
daList(1991) = "010010010111000215"
daList(1992) = "011001001011000204"
daList(1993) = "011010100101030123"
daList(1994) = "111010100101000210"
daList(1995) = "011010110010180131"
daList(1996) = "010110101100000219"
daList(1997) = "101010110110000207"
daList(1998) = "100100110110150128"
daList(1999) = "100100101110000216"
daList(2000) = "110010010110000205"
daList(2001) = "110101001010140124"
daList(2002) = "110101001010000212"
daList(2003) = "110110100101000201"
daList(2004) = "010110101010120122"
daList(2005) = "010101101010000209"
daList(2006) = "101010101101170129"
daList(2007) = "001001011101000218"
daList(2008) = "100100101101000207"
daList(2009) = "110010010101150126"
daList(2010) = "101010010101000214"
daList(2011) = "101101001010000214"
AddYear = tYear
RunYue = False
If IsGetGl Then
AddMonth = Val(Mid(daList(AddYear), 15, 2))
AddDay = Val(Mid(daList(AddYear), 17, 2))
conDate = DateSerial(AddYear, AddMonth, AddDay)
AddDay = tDay
For i = 1 To tMonth - 1
AddDay = AddDay + 29 + Val(Mid(daList(tYear), i, 1))
Next i
setDate = DateAdd("d", AddDay - 1, conDate)
GetYLDate = setDate
tYear = Year(setDate)
tMonth = Month(setDate)
tDay = Day(setDate)
Exit Function
End If
CHUSHIHUA:
AddMonth = Val(Mid(daList(AddYear), 15, 2))
AddDay = Val(Mid(daList(AddYear), 17, 2))
conDate = DateSerial(AddYear, AddMonth, AddDay)
setDate = DateSerial(tYear, tMonth, tDay)
getDay = DateDiff("d", conDate, setDate)
If getDay < 0 Then AddYear = AddYear - 1: GoTo CHUSHIHUA
' addday = NearDay
AddDay = 1: AddMonth = 1
For i = 1 To getDay
AddDay = AddDay + 1
If AddDay = 30 + Mid(daList(AddYear), AddMonth, 1) Or (RunYue And AddDay = 30 + Mid(daList(AddYear), 13, 1)) Then
If RunYue = False And AddMonth = Val("&H" & Mid(daList(AddYear), 14, 1)) Then
RunYue = True
Else
RunYue = False
AddMonth = AddMonth + 1
End If
AddDay = 1
End If
Next
md$ = "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"
dd$ = Mid(md$, (AddDay - 1) * 2 + 1, 2)
mm$ = Mid("正二三四五六七八九十寒腊", AddMonth, 1) + "月"
YouGetDate = DateSerial(AddYear, AddMonth, AddDay)
tiangan$ = "甲乙丙丁戊已庚辛壬癸"
dizhi$ = "子丑寅卯辰巳午未申酉戌亥"
Dim ganzhi(0 To 59) As String * 2
For i = 0 To 59
ganzhi(i) = Mid(tiangan$, (i Mod 10) + 1, 1) + Mid(dizhi$, (i Mod 12) + 1, 1)
'ff$ = ff$ + ganzhi(i)
Next i
'MsgBox ff$, , Len(ff$)
YLyear = ganzhi((AddYear - 4) Mod 60)
shu$ = "鼠牛虎兔龙蛇马羊猴鸡狗猪"
YLShuXing = Mid(shu$, ((AddYear - 4) Mod 12) + 1, 1)
If RunYue Then mm$ = "闰" + mm$
GetYLDate = mm$ + dd$
End Function
'下面是一个使用的例子，你需要在窗体上加上一个按扭，并命名为Command1，然后将下列代码复制到窗体的代码中
Private Sub Command1_Click()
Dim ty As Integer, tm As Integer, td As Integer, yl As String, sx As String
'取公历1999年10月28日的农历日期
ty = 1999
tm = 10
td = 28
t = GetYLDate(ty, tm, td, yl, sx)
MsgBox t
MsgBox ty & "-" & tm & "-" & td & " " & yl & " " & sx
'取1999年农历十月28的公历日期
t = GetYLDate(ty, tm, td, yl, sx, True)
MsgBox t
MsgBox ty & "-" & tm & "-" & td & " " & yl & " " & sx
End Sub
