公历转换阴历
var DateConversion = (function() {
var constants = {
LUNARINFO : new Array(
/* 1900 */
0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554,
0x056a0, 0x09ad0, 0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250,
0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977, 0x04970,
0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570,
0x052f2, 0x04970, 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0,
0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6,
0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950,
0x0b557, 0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573,
0x052d0, 0x0a9a8, 0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60,
0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0,
0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558,
0x0b540, 0x0b5a0, 0x195a6, 0x095b0, 0x049b0, 0x0a974, 0x0a4b0,
0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570, 0x04af5,
0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60,
0x096d5, 0x092e0, 0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552,
0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0,
0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0,
0x0a930, 0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6,
0x0a4e0, 0x0d260, 0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0,
0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45,
0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50,
0x1b255, 0x06d20, 0x0ada0,/* 2049 */
// 下面的是从 2050 到 2100 年的
0x14b63, /* 2050 */
0x09370, 0x049f8, 0x04970, 0x064b0, 0x168a6, /* 2055 */
0x0ea50, 0x06b20, 0x1a6c4, 0x0aae0, 0x0a2e0, /* 2060 */
0x0d2e3, 0x0c960, 0x0d557, 0x0d4a0, 0x0da50, /* 2065 */
0x05d55, 0x056a0, 0x0a6d0, 0x055d4, 0x052d0, /* 2070 */
0x0a9b8, 0x0a950, 0x0a4a0, 0x0b6a6, 0x0ad50, /* 2075 */
0x055a0, 0x0aba0, 0x0a5b0, 0x052b0, 0x0b273, /* 2080 */
0x06930, 0x07337, 0x06aa0, 0x0ad50, 0x14b55, /* 2085 */
0x04b60, 0x0a570, 0x054e4, 0x0d260, 0x0e968, /* 2090 */
0x0d520, 0x0daa0, 0x16aa6, 0x056d0, 0x04ae0, /* 2095 */
0x0a9d4, 0x0a4d0, 0x0d150, 0x0f252, 0x0d520 /* 2100 */),
GAN : new Array("甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"),
ZHI : new Array("子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌",
"亥")
};
var cd = function(strDate) {
var date, year, month, day, displayDay, displayMonth,result;
this.setDate = function(strDate) {
if (strDate) {
date = this.strToDate(strDate);
} else {
date = new Date();
}
};
this.getDate = function() {
return date;
};
this.getResult = function(){
return result;
};
this.setDate(strDate);
var res =lunar(new Date(date.getFullYear(), date.getMonth()-1,date.getDate()));
var cl = '<font color="red" STYLE="font-size:9pt;">';
var tt = cyclical(res[0] - 1900 + 36) +'('+res[0] + ')年'+(res[1] ==true? '闰' : '')
+ cDay(res[2], res[3]);
result =cl + tt + '</font>';
};
cd.getConstant = function(name) {
return constants[name];
};
// ==== 传入 offset 传回干支, 0=甲子
function cyclical(num) {
return (DateConversion.getConstant('GAN')[num % 10] + DateConversion
.getConstant('ZHI')[num % 12]);
};
// ==== 传回农历 y年的总天数
function lYearDays(y) {
var i, sum = 348;
for (i = 0x8000; i > 0x8; i >>= 1)
sum += (DateConversion.getConstant('LUNARINFO')[y - 1900] & i)
? 1
: 0;
return (sum + leapDays(y));
};
// ==== 传回农历 y年闰月的天数
function leapDays(y) {
if (leapMonth(y))
return ((DateConversion.getConstant('LUNARINFO')[y - 1900] & 0x10000)
? 30
: 29);
else
return (0);
};
// ==== 传回农历 y年闰哪个月 1-12 , 没闰传回 0
function leapMonth(y) {
return (DateConversion.getConstant('LUNARINFO')[y - 1900] & 0xf);
};
// ====================================== 传回农历 y年m月的总天数
function monthDays(y, m) {
return (DateConversion.getConstant('LUNARINFO')[y - 1900] & (0x10000 >> m))
? 30
: 29;
};
// ==== 中文日期
function cDay(m, d) {
var nStr1 = new Array('日', '一', '二', '三', '四', '五', '六', '七', '八', '九',
'十');
var nStr2 = new Array('初', '十', '廿', '卅', ' ');
var s;
if (m > 10) {
s = '十' + nStr1[m - 10];
} else {
s = nStr1[m];
}
s += '月';
switch (d) {
case 10 :
s += '初十';
break;
case 20 :
s += '二十';
break;
case 30 :
s += '三十';
break;
default :
s += nStr2[Math.floor(d / 10)];
s += nStr1[d % 10];
}
return (s);
};
// ==== 算出农历, 传入日期物件, 传回农历日期物件
// ==== 该物件属性有 .year .month .day .isLeap .yearCyl .dayCyl .monCyl
function lunar(objDate) {
var i, leap = 0, temp = 0;
var baseDate = new Date(1900, 0, 31);
var offset = (objDate - baseDate) / 86400000;
// this.dayCyl = offset + 40;
var monCyl = 14;
for (i = 1900; i < 2050 && offset > 0; i++) {
temp = lYearDays(i);
offset -= temp;
monCyl += 12;
}
if (offset < 0) {
offset += temp;
i--;
monCyl -= 12;
}
var year = i;
// this.yearCyl = i - 1864;
leap = leapMonth(i); // 闰哪个月
var isLeap = false;
for (i = 1; i < 13 && offset > 0; i++) {
// 闰月
if (leap > 0 && i == (leap + 1) && isLeap == false) {
--i;
isLeap = true;
temp = leapDays(year);
} else {
temp = monthDays(year, i);
}
// 解除闰月
if (isLeap == true && i == (leap + 1)) {
isLeap = false;
}
offset -= temp;
if (isLeap == false) {
monCyl++;
}
}
if (offset == 0 && leap > 0 && i == leap + 1) {
if (isLeap) {
isLeap = false;
} else {
isLeap = true;
--i;
--monCyl;
}
}
if (offset < 0) {
offset += temp;
--i;
--monCyl;
}
//年(闰)月日
return [year,isLeap,i,offset + 1];
}
return cd;
})();
DateConversion.prototype = {
strToDate : function(str) {
var arys = new Array();
arys = str.split('-');
var newDate = new Date(arys[0], arys[1], arys[2]);
return newDate;
}
};
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>农历日期显示</title>
<meta http-equiv="content-type" content="text/html; charset=gbk">
<script type="text/javascript" src='dateConversion.js' ></script>
<script>
// 显示当前时间
function setCalendar() {
var obj = new DateConversion(document.getElementById('sdc').value);
document.getElementById('dc').innerHTML=obj.getResult();
}
</script>
<!--结束-->
</head>
<body>
<div id='dc'></div>
<input type='text' id='sdc' value='1988-02-02'></input>
<input type='button' onclick='setCalendar()' value='Date Conversion'/>
</body>
</html>