想用单片机设计一个万年历，如何实现阳历到农历的转换最好是给出思路和相关程序。

<%

' 用途：

' 当前日期计算该日期的农历天干地支及当年属相

' ##-------------------------------------------##

Dim objChinaDay

Dim sDay, sWeekDay, sChinaDay, sChinaYear,sChinaAni

Set objChinaDay = New ChinaDay

Call objChinaDayAction("",sDay,sWeekDay,sChinaYear,sChinaDay,sChinaAni)

ResponseWrite sDay&" " '当前日期

ResponseWrite sWeekDay&" " '星期

ResponseWrite sChinaYear&" " '农历年份

ResponseWrite sChinaDay&" " '农历日期

ResponseWrite sChinaAni&" " '生肖

' Copyright: 本代码非原创，原作者未知。

'

Class ChinaDay

Dim arrWeekName(7), MonthAdd(11), NongliData(99)

Dim arrTianGan(9), arrDiZhi(11), arrShuXiang(11), arrDayName(30), arrMonName(12)

Dim curTime, curYear, curMonth, curDay, curWeekday

Dim i, m, n, k, isEnd, bit, TheDate

'初始化数据

Sub Class_Initialize()

'-------------------------------------------------------------------------

'定义显示字串

'星期名

arrWeekName(0) = ""

arrWeekName(1) = "星期日"

arrWeekName(2) = "星期一"

arrWeekName(3) = "星期二"

arrWeekName(4) = "星期三"

arrWeekName(5) = "星期四"

arrWeekName(6) = "星期五"

arrWeekName(7) = "星期六"

'天干名称

arrTianGan(0) = "甲"

arrTianGan(1) = "乙"

arrTianGan(2) = "丙"

arrTianGan(3) = "丁"

arrTianGan(4) = "戊"

arrTianGan(5) = "己"

arrTianGan(6) = "庚"

arrTianGan(7) = "辛"

arrTianGan(8) = "壬"

arrTianGan(9) = "癸"

'地支名称

arrDiZhi(0) = "子"

arrDiZhi(1) = "丑"

arrDiZhi(2) = "寅"

arrDiZhi(3) = "卯"

arrDiZhi(4) = "辰"

arrDiZhi(5) = "巳"

arrDiZhi(6) = "午"

arrDiZhi(7) = "未"

arrDiZhi(8) = "申"

arrDiZhi(9) = "酉"

arrDiZhi(10) = "戌"

arrDiZhi(11) = "亥"

'属相名称

arrShuXiang(0) = "鼠"

arrShuXiang(1) = "牛"

arrShuXiang(2) = "虎"

arrShuXiang(3) = "兔"

arrShuXiang(4) = "龙"

arrShuXiang(5) = "蛇"

arrShuXiang(6) = "马"

arrShuXiang(7) = "羊"

arrShuXiang(8) = "猴"

arrShuXiang(9) = "鸡"

arrShuXiang(10) = "狗"

arrShuXiang(11) = "猪"

'农历日期名

arrDayName(0) = ""

arrDayName(1) = "初一"

arrDayName(2) = "初二"

arrDayName(3) = "初三"

arrDayName(4) = "初四"

arrDayName(5) = "初五"

arrDayName(6) = "初六"

arrDayName(7) = "初七"

arrDayName(8) = "初八"

arrDayName(9) = "初九"

arrDayName(10) = "初十"

arrDayName(11) = "十一"

arrDayName(12) = "十二"

arrDayName(13) = "十三"

arrDayName(14) = "十四"

arrDayName(15) = "十五"

arrDayName(16) = "十六"

arrDayName(17) = "十七"

arrDayName(18) = "十八"

arrDayName(19) = "十九"

arrDayName(20) = "二十"

arrDayName(21) = "廿一"

arrDayName(22) = "廿二"

arrDayName(23) = "廿三"

arrDayName(24) = "廿四"

arrDayName(25) = "廿五"

arrDayName(26) = "廿六"

arrDayName(27) = "廿七"

arrDayName(28) = "廿八"

arrDayName(29) = "廿九"

arrDayName(30) = "卅十"

'农历月份名

arrMonName(0) = ""

arrMonName(1) = "正"

arrMonName(2) = "二"

arrMonName(3) = "三"

arrMonName(4) = "四"

arrMonName(5) = "五"

arrMonName(6) = "六"

arrMonName(7) = "七"

arrMonName(8) = "八"

arrMonName(9) = "九"

arrMonName(10) = "十"

arrMonName(11) = "冬"

arrMonName(12) = "腊"

'-------------------------------------------------------------------------

'公差数据定义

'公历每月前面的天数

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

'农历数据

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

End Sub

'#################################################################

'主要方法 Action

' inDay 输入日期，如果不输入则默认为当前日期

' sDay 中文格式日期

' sWeekDay 周几

' sChinaYear 农历年

' sChinaDay 农历日

' sChinaAni 属相

'#################################################################

Public Function Action(inDay,sDay,sWeekDay,sChinaYear,sChinaDay,sChinaAni)

'转换要转换的日期

If inDay="" Or Not IsDate(inDay) Then

'获取当前系统时间

curTime = Now()

Else

curTime = CDate(inDay)

End If

If Datediff("d",curTime,Cdate("1921-2-8"))>0 Then

Exit Function

End If

'生成当前公历年、月、日 ==> sDay

curYear = Year(curTime)

curMonth = Month(curTime)

curDay = Day(curTime)

sDay = curYear&"年"

If (curMonth < 10) Then

sDay = sDay&"0"&curMonth&"月"

Else

sDay = sDay&curMonth&"月"

End If

If (curDay < 10) Then

sDay = sDay&"0"&curDay&"日"

Else

sDay = sDay&curDay&"日"

End If

'生成当前公历星期 ==> sWeekDay

curWeekday = Weekday(curTime)

sWeekDay = arrWeekName(curWeekday)

'计算到初始时间1921年2月8日的天数：1921-2-8(正月初一)

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

'计算农历天干、地支、月、日

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

'获取NongliData(m)的第n个二进制位的值

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

'生成农历天干、地支==> sChinaYear

sChinaYear = "农历"&arrTianGan(((curYear - 4) Mod 60) Mod 10)&arrDiZhi(((curYear - 4) Mod 60) Mod 12)&"年"

'生成属相 == > sChinaAni

sChinaAni = arrShuXiang(((curYear - 4) Mod 60) Mod 12)

'生成农历月、日 ==> NongliDayStr

If (curMonth < 1) Then

sChinaDay = "闰"&arrMonName(-1 curMonth)

Else

sChinaDay = arrMonName(curMonth)

End If

sChinaDay = sChinaDay&"月"

sChinaDay = sChinaDay & arrDayName(curDay)

End Function

End Class

%>

单片机是stc89c52rc，这应该是实物开发板，要做万年历，显示分平年和闰年，显示时间和日期，这需要有数码管的电路原理图，才能写程序。既然是开发板，肯定有原理图的，把原理图传上来，才能根据原理图写出程序的。计时肯定是要用到定时器的。

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