農曆(國曆)轉換-Javascript換算程式

2016-01-21 jashliao Comments 0 Comment

農曆(國曆)轉換-Javascript換算程式

資料來源:http://fanli7.net/a/bianchengyuyan/C__/20130125/29…

http://www.hko.gov.hk/gts/time/conversionc.htm

<html>

<head>

<meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />

<title>農民曆換算</title>

<script type=”text/javascript”>

/*!

* LunarDate v1.0.0

* http://www.clanfei.com/

*

* Author: Lanfei

* Date: 2013-1-24

*/

var LunarDate = {

madd: new Array(0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334),

HsString: ‘甲乙丙丁戊己庚辛壬癸’,

EbString: ‘子醜寅卯辰巳午未申酉戌亥’,

NumString: “一二三四五六七八九十”,

MonString: “正二三四五六七八九十冬腊”,

CalendarData: new Array(0xA4B, 0x5164B, 0x6A5, 0x6D4, 0x415B5, 0x2B6, 0x957, 0x2092F, 0x497, 0x60C96, 0xD4A, 0xEA5, 0x50DA9, 0x5AD, 0x2B6, 0x3126E, 0x92E, 0x7192D, 0xC95, 0xD4A, 0x61B4A, 0xB55, 0x56A, 0x4155B, 0x25D, 0x92D, 0x2192B, 0xA95, 0x71695, 0x6CA, 0xB55, 0x50AB5, 0x4DA, 0xA5B, 0x30A57, 0x52B, 0x8152A, 0xE95, 0x6AA, 0x615AA, 0xAB5, 0x4B6, 0x414AE, 0xA57, 0x526, 0x31D26, 0xD95, 0x70B55, 0x56A, 0x96D, 0x5095D, 0x4AD, 0xA4D, 0x41A4D, 0xD25, 0x81AA5, 0xB54, 0xB6A, 0x612DA, 0x95B, 0x49B, 0x41497, 0xA4B, 0xA164B, 0x6A5, 0x6D4, 0x615B4, 0xAB6, 0x957, 0x5092F, 0x497, 0x64B, 0x30D4A, 0xEA5, 0x80D65, 0x5AC, 0xAB6, 0x5126D, 0x92E, 0xC96, 0x41A95, 0xD4A, 0xDA5, 0x20B55, 0x56A, 0x7155B, 0x25D, 0x92D, 0x5192B, 0xA95, 0xB4A, 0x416AA, 0xAD5, 0x90AB5, 0x4BA, 0xA5B, 0x60A57, 0x52B, 0xA93, 0x40E95),

Year: null,

Month: null,

Day: null,

TheDate: null,

GetBit: function(m, n){

return (m >> n) & 1;

},

e2c: function(){

this.TheDate = (arguments.length != 3) ? new Date(): new Date(arguments[0], arguments[1], arguments[2]);

var total, m, n, k;

var isEnd = false;

var tmp = this.TheDate.getFullYear();

total = (tmp – 1921) * 365 + Math.floor((tmp – 1921) / 4) + this.madd[this.TheDate.getMonth()] + this.TheDate.getDate() – 38;

if (this.TheDate.getYear() % 4 == 0 && this.TheDate.getMonth() > 1) {

total++;

}

for (m = 0; ; m++) {

k = (this.CalendarData[m] < 0xfff) ? 11: 12;

for (n = k; n >= 0; n–) {

if (total <= 29 + this.GetBit(this.CalendarData[m], n)) {

isEnd = true;

break;

}

total = total – 29 – this.GetBit(this.CalendarData[m], n);

}

if (isEnd)

break;

}

this.Year = 1921 + m;

this.Month = k – n + 1;

this.Day = total;

if (k == 12) {

if (this.Month == Math.floor(this.CalendarData[m] / 0x10000) + 1) {

this.Month = 1 – this.Month;

}

if (this.Month > Math.floor(this.CalendarData[m] / 0x10000) + 1) {

this.Month–;

}

}

},

GetcDateString: function(){

var tmp = “”;

tmp += this.HsString.charAt((this.Year – 4) % 10);

tmp += this.EbString.charAt((this.Year – 4) % 12);

tmp += “年 “;

if (this.Month < 1) {

tmp += “(閏)”;

tmp += this.MonString.charAt(-this.Month – 1);

} else {

tmp += this.MonString.charAt(this.Month – 1);

}

tmp += “月”;

tmp += (this.Day < 11) ? “初”: ((this.Day < 20) ? “十”: ((this.Day < 30) ? “廿”: “三十”));

if (this.Day % 10 != 0 || this.Day == 10) {

tmp += this.NumString.charAt((this.Day – 1) % 10);

}

return tmp;

},

GetLunarDay: function(solarYear, solarMonth, solarDay) {

if (solarYear < 1921 || solarYear > 2020) {

return “”;

} else {

solarMonth = (parseInt(solarMonth) > 0) ? (solarMonth – 1): 11;

this.e2c(solarYear, solarMonth, solarDay);

return this.GetcDateString();

}

}

};

</script>

</head>

<body>

<script type=”text/javascript”>

var Today=new Date();

document.write(“今天國曆日期是:” + Today.getFullYear()+ ” 年 ” + (Today.getMonth()+1) + ” 月 ” + Today.getDate() + ” 日”);

document.write(“<br>”);

document.write(“今天農曆日期是:”+LunarDate.GetLunarDay(Today.getFullYear(), (Today.getMonth()+1), Today.getDate()));

</script>

</body>

</html>

以下是實際運作狀況: