287 lines
8.2 KiB
JavaScript
287 lines
8.2 KiB
JavaScript
/**
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阳历转化为农历函数类
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create:Chenxihu
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createdt:2013-11-05 11:05:00
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*/
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function rockoaclasstolunar_new(_y,_m,_d){
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const calendar = {
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gregorianYear: null, //公历年
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gregorianMonth: null, //公历月
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gregorianDay: null, //公历日
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weekday: null, //星期
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hours: null,
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minutes: null,
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seconds: null,
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lunarYear: null, //农历年
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lunarMonth: null, //农历月
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lunarDay: null, //农历日
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lunarYearCn: '', //农历天干地支纪年
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lunarMonthCn: '', //农历中文月
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lunarDayCn: '', //农历中文日
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zodiacYear: '', //农历生肖年
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solarTerm: '', //节气
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gregorianFestival: '', //公历节日
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lunarFestival: '' //农历节日
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}
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let lunarInfo = [
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0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2,
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0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977,
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0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970,
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0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950,
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0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557,
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0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950, 0x06aa0,
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0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0,
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0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6,
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0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570,
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0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0,
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0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5,
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0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930,
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0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530,
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0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45,
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0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0]
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let zodiacs = ['鼠', '牛', '虎', '兔', '龙', '蛇', '马', '羊', '猴', '鸡', '狗', '猪']
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let Gan = ['甲', '乙', '丙', '丁', '戊', '己', '庚', '辛', '壬', '癸']
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let Zhi = ['子', '丑', '寅', '卯', '辰', '巳', '午', '未', '申', '酉', '戌', '亥']
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let weekday = ['星期日','星期一', '星期二', '星期三', '星期四', '星期五', '星期六']
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let now = new Date(parseFloat(_y),parseFloat(_m)-1,parseFloat(_d))
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//用于计算农历年月日的数据
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let GY = now.getFullYear()
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let GM = now.getMonth()
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let GD = now.getDate()
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let year = now.getFullYear()
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let month = now.getMonth() + 1
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let date = now.getDate()
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let hours = 0
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let minutes = 0
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let seconds = 0
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month = xy10(month)
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date = xy10(date)
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hours = xy10(hours)
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minutes = xy10(minutes)
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seconds = xy10(seconds)
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//==== 传入 offset 传回干支, 0=甲子
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function cyclical(num) {
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return(Gan[num % 10] + Zhi[num % 12])
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}
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//==== 传回农历 year年的总天数
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function lYearDays(year) {
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let i, sum = 348
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for(i = 0x8000; i > 0x8; i >>= 1) {
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sum += (lunarInfo[year - 1900] & i) ? 1: 0
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}
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return(sum + leapDays(year))
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}
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//==== 传回农历 year年闰月的天数
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function leapDays(year) {
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if(leapMonth(year)) {
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return((lunarInfo[year-1900] & 0x10000)? 30: 29)
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}
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else {
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return 0
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}
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}
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//==== 传回农历 year年闰哪个月 1-12 , 没闰传回 0
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function leapMonth(year) {
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return(lunarInfo[year - 1900] & 0xf)
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}
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//==== 传回农历 year年month月的总天数
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function monthDays(year, month) {
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return( (lunarInfo[year - 1900] & (0x10000 >> month))? 30: 29 )
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}
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//==== 算出农历, 传入日期对象, 传回农历日期对象
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// 该对象属性有 农历年year 农历月month 农历日day 是否闰年isLeap yearCyl dayCyl monCyl
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function Lunar(objDate) {
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let i, temp = 0
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let baseDate = new Date(1900,0,31)
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let offset = Math.floor((objDate - baseDate)/86400000)
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let dayCyl = offset + 40
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let monCyl = 14
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for(i = 1900; i < 2050 && offset > 0; i++) {
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temp = lYearDays(i)
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offset -= temp
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monCyl += 12
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}
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if(offset < 0) {
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offset += temp;
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i--;
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monCyl -= 12
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}
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//农历年
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let year = i
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let yearCyl = i-1864
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let leap = leapMonth(i) //闰哪个月
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let isLeap = false //是否闰年
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for(i=1; i<13 && offset>0; i++) {
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//闰月
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if(leap>0 && i === (leap+1) && isLeap === false) {
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--i; isLeap = true; temp = leapDays(year);
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}
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else {
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temp = monthDays(year, i);
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}
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//解除闰月
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if(isLeap === true && i === (leap + 1)) {
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isLeap = false
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}
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offset -= temp
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if(isLeap === false) {
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monCyl ++
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}
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}
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if(offset === 0 && leap>0 && i===leap+1)
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if(isLeap) {
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isLeap = false
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}
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else {
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isLeap = true
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--i
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--monCyl
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}
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if(offset<0){
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offset += temp
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--i
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--monCyl
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}
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//农历月
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let month = i
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//农历日
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let day = offset + 1
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return {
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year: year,
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month: month,
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day: day,
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isLeap: isLeap,
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leap: leap,
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yearCyl: yearCyl,
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dayCyl: dayCyl,
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monCyl: monCyl
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}
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}
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//==== 中文日期 m为传入月份，d为传入日期
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function cDay(m, d){
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let nStr1 = ['日', '一', '二', '三', '四', '五', '六', '七', '八', '九', '十']
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let nStr2 = ['初', '十', '廿', '卅', '']
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//农历中文月
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let lunarMonthCn
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//农历中文日
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let lunarDayCn
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if (m > 10){
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lunarMonthCn = '十' + nStr1[m - 10]
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} else {
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lunarMonthCn = nStr1[m]
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}
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lunarMonthCn += '月'
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switch (d) {
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case 10: lunarDayCn = '初十'; break;
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case 20: lunarDayCn = '二十'; break;
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case 30: lunarDayCn = '三十'; break;
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default: lunarDayCn = nStr2[Math.floor(d/10)] + nStr1[d % 10]
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}
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return {
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lunarMonthCn: lunarMonthCn,
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lunarDayCn: lunarDayCn
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}
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}
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//节气
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function getSolarTerm() {
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let sTermInfo = [
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0, 21208, 42467, 63836, 85337, 107014,
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128867, 150921, 173149, 195551, 218072, 240693,
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263343, 285989, 308563, 331033, 353350, 375494,
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397447, 419210, 440795, 462224, 483532, 504758
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]
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let solarTerm = [
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'小寒', '大寒', '立春', '雨水', '惊蛰', '春分',
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'清明', '谷雨', '立夏', '小满', '芒种', '夏至',
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'小暑', '大暑', '立秋', '处暑', '白露', '秋分',
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'寒露', '霜降', '立冬', '小雪', '大雪', '冬至'
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]
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let solarTerms = ''
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let tmp1 = new Date(
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(31556925974.7 * (GY - 1900) + sTermInfo[GM * 2 + 1] * 60000) + Date.UTC(1900,0,6,2,5)
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)
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let tmp2 = tmp1.getUTCDate()
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if (tmp2 === GD) solarTerms = solarTerm[GM * 2 + 1]
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tmp1 = new Date(
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(31556925974.7 * (GY - 1900) + sTermInfo[GM * 2] * 60000) + Date.UTC(1900,0,6,2,5)
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)
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tmp2= tmp1.getUTCDate()
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if (tmp2 === GD) solarTerms = solarTerm[GM * 2]
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return solarTerms
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}
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//公历年月日、星期、时分秒
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calendar.gregorianYear = year
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calendar.gregorianMonth = month
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calendar.gregorianDay = date
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calendar.weekday = weekday[now.getDay()]
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calendar.hours = hours
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calendar.minutes = minutes
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calendar.seconds = seconds
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//去掉时分秒的日期
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let sDObj = new Date(GY, GM, GD);
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let lDObj = new Lunar(sDObj);
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//农历年月日、生肖年
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calendar.lunarYear = lDObj.year
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calendar.lunarMonth = lDObj.month
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calendar.lunarDay = lDObj.day
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calendar.zodiacYear = zodiacs[(GY - 4) % 12]
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//农历中文年月日
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calendar.lunarYearCn = cyclical( GY - 1900 + 36)
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calendar.lunarMonthCn = cDay(lDObj.month,lDObj.day).lunarMonthCn
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calendar.lunarDayCn = cDay(lDObj.month,lDObj.day).lunarDayCn
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//节气
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calendar.solarTerm = getSolarTerm()
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return calendar;
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}
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function rockoaclasstolunar(){
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this.solarTerm={};
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this.sTerm = function (y,n) {
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return '';
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}
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this.iconv=function(y,m,d)
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{
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var jre = rockoaclasstolunar_new(y,m,d);
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var arr = [jre.lunarYearCn+'('+jre.zodiacYear+')',jre.lunarMonthCn, jre.lunarDayCn, jre.solarTerm];
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return arr;
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}
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}
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var lunar = new rockoaclasstolunar(); |