js 根據公曆日期 算出農曆_JS擷取農曆日期具體執行個體

var CalendarData = new Array(100);

var madd = new Array(12);

var tgString = "甲乙丙丁戊己庚辛壬癸";

var dzString = "子醜寅卯辰巳午未申酉戌亥";

var numString = "一二三四五六七八九十";

var monString = "正二三四五六七八九十冬臘";

var weekString = "日一二三四五六";

var sx = "鼠牛虎兔龍蛇馬羊猴雞狗豬";

var cYear,cMonth,cDay,TheDate;

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

madd[0] = 0;

madd[1] = 31;

madd[2] = 59;

madd[3] = 90;

madd[4] = 120;

madd[5] = 151;

madd[6] = 181;

madd[7] = 212;

madd[8] = 243;

madd[9] = 273;

madd[10] = 304;

madd[11] = 334;

function GetBit(m,n) {

return (m >> n) & 1;

}

function e2c() {

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

var total,m,n,k;

var isEnd = false;

var tmp = TheDate.getYear();

if (tmp < 1900) {

tmp += 1900;

}

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

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

total++;

}

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

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

for (n = k; n >= 0; n--) {

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

isEnd = true; break;

}

total = total - 29 - GetBit(CalendarData[m],n);

}

if (isEnd) break;

}

cYear = 1921 + m;

cMonth = k - n + 1;

cDay = total;

if (k == 12) {

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

cMonth = 1 - cMonth;

}

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

cMonth--;

}

}

}

function GetcDateString() {

var tmp = "";

tmp += tgString.charAt((cYear - 4) % 10);

tmp += dzString.charAt((cYear - 4) % 12);

tmp += "(";

tmp += sx.charAt((cYear - 4) % 12);

tmp += ")年 ";

if (cMonth < 1) {

tmp += "(閏)";

tmp += monString.charAt(-cMonth - 1);

} else {

tmp += monString.charAt(cMonth - 1);

}

tmp += "月";

tmp += (cDay < 11) ? "初" : ((cDay < 20) ? "十" : ((cDay < 30) ? "廿" : "三十"));

if (cDay % 10 != 0 || cDay == 10) {

tmp += numString.charAt((cDay - 1) % 10);

}

return tmp;

}

function GetLunarDay(solarYear,solarMonth,solarDay) {

//solarYear = solarYear<1900?(1900+solarYear):solarYear;

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

return "";

} else {

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

e2c(solarYear,solarDay);

return GetcDateString();

}

}

//調用

var D = new Date();

var yy = D.getFullYear();

var mm = D.getMonth() + 1;

var dd = D.getDate();

var ww = D.getDay();

var ss = parseInt(D.getTime() / 1000);

if (yy < 100) yy = "19" + yy;

function GetCNDate() {

return GetLunarDay(yy,mm,dd);

}

$(document).ready(function () {

var d = GetCNDate();

alert(d);

});