收集了两种代码：
代码一：
代码
Dim MonthAdd(11), NongliData(99)
Dim curTime, curYear, curMonth, curDay
Dim i, m, n, k, isEnd, bit, TheDate
Private Sub Command1_Click()
Text2.Text = lunarDay(Text1.Text)
End Sub
Public Function lunarDay(inDay) As String
MonthAdd(0) = 0
MonthAdd(1) = 31
MonthAdd(2) = 59
MonthAdd(3) = 90
MonthAdd(4) = 120
MonthAdd(5) = 151
MonthAdd(6) = 181
MonthAdd(7) = 212
MonthAdd(8) = 243
MonthAdd(9) = 273
MonthAdd(10) = 304
MonthAdd(11) = 334
NongliData(0) = 2635
NongliData(1) = 333387
NongliData(2) = 1701
NongliData(3) = 1748
NongliData(4) = 267701
NongliData(5) = 694
NongliData(6) = 2391
NongliData(7) = 133423
NongliData(8) = 1175
NongliData(9) = 396438
NongliData(10) = 3402
NongliData(11) = 3749
NongliData(12) = 331177
NongliData(13) = 1453
NongliData(14) = 694
NongliData(15) = 201326
NongliData(16) = 2350
NongliData(17) = 465197
NongliData(18) = 3221
NongliData(19) = 3402
NongliData(20) = 400202
NongliData(21) = 2901
NongliData(22) = 1386
NongliData(23) = 267611
NongliData(24) = 605
NongliData(25) = 2349
NongliData(26) = 137515
NongliData(27) = 2709
NongliData(28) = 464533
NongliData(29) = 1738
NongliData(30) = 2901
NongliData(31) = 330421
NongliData(32) = 1242
NongliData(33) = 2651
NongliData(34) = 199255
NongliData(35) = 1323
NongliData(36) = 529706
NongliData(37) = 3733
NongliData(38) = 1706
NongliData(39) = 398762
NongliData(40) = 2741
NongliData(41) = 1206
NongliData(42) = 267438
NongliData(43) = 2647
NongliData(44) = 1318
NongliData(45) = 204070
NongliData(46) = 3477
NongliData(47) = 461653
NongliData(48) = 1386
NongliData(49) = 2413
NongliData(50) = 330077
NongliData(51) = 1197
NongliData(52) = 2637
NongliData(53) = 268877
NongliData(54) = 3365
NongliData(55) = 531109
NongliData(56) = 2900
NongliData(57) = 2922
NongliData(58) = 398042
NongliData(59) = 2395
NongliData(60) = 1179
NongliData(61) = 267415
NongliData(62) = 2635
NongliData(63) = 661067
NongliData(64) = 1701
NongliData(65) = 1748
NongliData(66) = 398772
NongliData(67) = 2742
NongliData(68) = 2391
NongliData(69) = 330031
NongliData(70) = 1175
NongliData(71) = 1611
NongliData(72) = 200010
NongliData(73) = 3749
NongliData(74) = 527717
NongliData(75) = 1452
NongliData(76) = 2742
NongliData(77) = 332397
NongliData(78) = 2350
NongliData(79) = 3222
NongliData(80) = 268949
NongliData(81) = 3402
NongliData(82) = 3493
NongliData(83) = 133973
NongliData(84) = 1386
NongliData(85) = 464219
NongliData(86) = 605
NongliData(87) = 2349
NongliData(88) = 334123
NongliData(89) = 2709
NongliData(90) = 2890
NongliData(91) = 267946
NongliData(92) = 2773
NongliData(93) = 592565
NongliData(94) = 1210
NongliData(95) = 2651
NongliData(96) = 395863
NongliData(97) = 1323
NongliData(98) = 2707
NongliData(99) = 265877
If inDay = "" Or Not IsDate(inDay) Then
curTime = Now()
Else
curTime = CDate(inDay)
End If
If DateDiff("d", curTime, CDate("1921-2-8")) > 0 Then
Exit Function
End If
curYear = Year(curTime)
curMonth = Month(curTime)
curDay = Day(curTime)
TheDate = (curYear - 1921) * 365 + Int((curYear - 1921) / 4) + _
curDay + MonthAdd(curMonth - 1) - 38
If ((curYear Mod 4) = 0 And curMonth > 2) Then
TheDate = TheDate + 1
End If
isEnd = 0
m = 0
'------------------------------------
Do
If (NongliData(m) < 4095) Then
k = 11
Else
k = 12
End If
n = k
'------------------------------------
Do
If (n < 0) Then
Exit Do
End If
bit = NongliData(m)
For i = 1 To n Step 1
bit = Int(bit / 2)
Next
bit = bit Mod 2
If (TheDate <= 29 + bit) Then
isEnd = 1
Exit Do
End If
TheDate = TheDate - 29 - bit
n = n - 1
Loop
'------------------------------------
If (isEnd = 1) Then
Exit Do
End If
m = m + 1
Loop
'------------------------------------
curYear = 1921 + m
curMonth = k - n + 1
curDay = TheDate
If (k = 12) Then
If (curMonth = (Int(NongliData(m) / 65536) + 1)) Then
curMonth = 1 - curMonth
ElseIf (curMonth > (Int(NongliData(m) / 65536) + 1)) Then
curMonth = curMonth - 1
End If
End If
lunarDay = curYear & "/" & curMonth & "/" & curDay
End Function
代码二：（据说速度较快）
代码
Option Explicit
'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，即使用16进制。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。
'GetYLDate函数使用方式如下tYear为要输入的年，tMonth为月，tDay为
'日期，YLyear是返回值，返加农历的年份，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。
Function GetYLDate(tYear As Integer, tMonth As Integer, tDay As Integer, YLyear As String, YLShuXing As String, Optional IsGetGl As Boolean) As String
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
Dim i
If tYear > 2010 Or tYear < 1901 Then Exit Function '如果不是有效有日期，退出
'1900 to 1909
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
Dim md As String, dd As String, mm As String
Dim YouGetDate
Dim tiangan As String
Dim dizhi As String
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$, , Len(ff$)
Dim shu As String
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
Dim i As Integer
For i = 1 To 1000
GetYLDate Year(Now), Month(Now), DateTime.Day(Now), yl, sx
Next
'取公历1999年10月28日的农历日期
'MsgBox GetYLDate(1999, 10, 28, yl, sx)
'
'MsgBox 1999 & "-" & 10 & "-" & 28 & " " & yl & " " & sx
'
''取1999年农历十月28的公历日期
'
'MsgBox GetYLDate(1999, 10, 28, yl, sx, True)
'
'MsgBox 1999 & "-" & 10 & "-" & 28 & " " & yl & " " & sx
'
End Sub
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