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>