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本文實例講述了JS實現帶陰歷的日歷功能。分享給大家供大家參考，具體如下：
工作中要寫一個帶陰歷的日歷，自己調研了怎么做日歷。
一.表格行數問題
既然要顯示日期表格的話，首先得知道這個表格有多少行多少列，列數是已經確定的，從星期天（日歷上第1列是星期天）到星期六一共7列。要解決行數問題之前，還得先知道這個月的第1天是星期幾，因為每個月的1號并不都是從日歷上的星期天開始排的，可能1號是星期五，星期六也說不定，所以1號的左邊部分，就得用空表格代替了。那么用多少個空表格代替呢，這里就得用到getDay()方法了，該方法返回數組[0-6]中的一個數字，0代表星期天，1代表星期一，2代表星期二，以此類推。所以如果一個月的1號是星期五的話，那么剛好左邊需要5個空表格代替。然后，假如一個月有31天，最后求出的表格行數就是：
var tr_nums = Math.ceil((5 + 31)/7);
當然，并不是每個月都是31天，所以我們得創建一個包含12個月份的數組，每個元素代表每個月份所包含的天數。但是2月份比較特殊，閏年的2月份有29天，平年的2月份只有28天。所以，在創建數組之前，得自己創建一個判斷閏年的函數:
//如果當前年份能被4整除但是不能被100整除或者能被400整除，即可確定為閏年，返回1，否則返回0
function isLeap(year) {
return year % 4 == 0 ? (year % 100 != 0 ? 1 : (year % 400 == 0 ? 1 : 0)) : 0;
}
然后我們創建一個月份數組:
var days_per_month = new Array(31, 28 + isLeap(year), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
這樣就能保證無論是平年還是閏年都會取出正確的天數，下面的代碼用于獲取今天的相關信息:
var today = new Date(), //獲取當前日期 y = today.getFullYear(), //獲取日期中的年份 m = today.getMonth(), //獲取日期中的月份(需要注意的是：月份是從0開始計算，獲取的值比正常月份的值少1) d = today.getDate(), //獲取日期中的日(方便在建立日期表格時高亮顯示當天) firstday = new Date(y, m, 1), //獲取當月的第一天 dayOfWeek = firstday.getDay(), //判斷第一天是星期幾(返回[0-6]中的一個，0代表星期天，1代表星期一，以此類推) days_per_month = new Array(31, 28 + isLeap(y), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31), //創建月份數
所以最后就可以獲取當月所需表格的行數:
var str_nums = Math.ceil((dayOfWeek + days_per_month[m]) / 7); //確定日期表格所需的行數
完整的js代碼：
<script>
//判斷當前年份是否是閏年(閏年2月份有29天，平年2月份只有28天)
function isLeap(year) {
return year % 4 == 0 ? (year % 100 != 0 ? 1 : (year % 400 == 0 ? 1 : 0)) : 0;
}
var i, k,
today = new Date(), //獲取當前日期
y = today.getFullYear(), //獲取日期中的年份
m = today.getMonth(), //獲取日期中的月份(需要注意的是：月份是從0開始計算，獲取的值比正常月份的值少1)
d = today.getDate(), //獲取日期中的日(方便在建立日期表格時高亮顯示當天)
firstday = new Date(y, m, 1), //獲取當月的第一天
dayOfWeek = firstday.getDay(), //判斷第一天是星期幾(返回[0-6]中的一個，0代表星期天，1代表星期一，以此類推)
days_per_month = new Array(31, 28 + isLeap(y), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31), //創建月份數組
str_nums = Math.ceil((dayOfWeek + days_per_month[m]) / 7); //確定日期表格所需的行數
document.write("<table cellspacing='0'><tr><th>日</th><th>一</th><th>二</th><th>三</th><th>四</th><th>五</th><th>六</th></tr>"); //打印表格第一行(顯示星期)
for (i = 0; i < str_nums; i += 1) { //二維數組創建日期表格
document.write('<tr>');
for (k = 0; k < 7; k++) {
var idx = 7 * i + k; //為每個表格創建索引,從0開始
var date = idx - dayOfWeek + 1; //將當月的1號與星期進行匹配
(date <= 0 || date > days_per_month[m]) ? date = ' ': date = idx - dayOfWeek + 1; //索引小于等于0或者大于月份最大值就用空表格代替
date == d ? document.write('<td class="today">' + date + '</td>') : document.write('<td>' + date + '</td>'); //高亮顯示當天
}
document.write('</tr>');
}
document.write('</table>');
</script>
二、陰歷的問題
從小就沒搞懂了陰歷和陽歷中的換算問題，幸運的是從其他牛人那里找到了陰陽歷的轉換js代碼，
/**
* @1900-2100區間內的公歷、農歷互轉
* @charset UTF-8
* @Author Jea楊(JJonline@JJonline.Cn)
* @Time 2014-7-21
* @Time 2016-8-13 Fixed 2033hex、Attribution Annals
* @Time 2016-9-25 Fixed lunar LeapMonth Param Bug
* @Version 1.0.2
* @公歷轉農歷：calendar.solar2lunar(1987,11,01); //[you can ignore params of prefix 0]
* @農歷轉公歷：calendar.lunar2solar(1987,09,10); //[you can ignore params of prefix 0]
*/
var calendar = {
/**
* 農歷1900-2100的潤大小信息表
* @Array Of Property
* @return Hex
*/
lunarInfo:[0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,//1900-1909
0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,//1910-1919
0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,//1920-1929
0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,//1930-1939
0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,//1940-1949
0x06ca0,0x0b550,0x15355,0x04da0,0x0a5b0,0x14573,0x052b0,0x0a9a8,0x0e950,0x06aa0,//1950-1959
0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,//1960-1969
0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b6a0,0x195a6,//1970-1979
0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,//1980-1989
0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,//1990-1999
0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,//2000-2009
0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,//2010-2019
0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,//2020-2029
0x05aa0,0x076a3,0x096d0,0x04afb,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,//2030-2039
0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0,//2040-2049
/**Add By JJonline@JJonline.Cn**/
0x14b63,0x09370,0x049f8,0x04970,0x064b0,0x168a6,0x0ea50, 0x06b20,0x1a6c4,0x0aae0,//2050-2059
0x0a2e0,0x0d2e3,0x0c960,0x0d557,0x0d4a0,0x0da50,0x05d55,0x056a0,0x0a6d0,0x055d4,//2060-2069
0x052d0,0x0a9b8,0x0a950,0x0b4a0,0x0b6a6,0x0ad50,0x055a0,0x0aba4,0x0a5b0,0x052b0,//2070-2079
0x0b273,0x06930,0x07337,0x06aa0,0x0ad50,0x14b55,0x04b60,0x0a570,0x054e4,0x0d160,//2080-2089
0x0e968,0x0d520,0x0daa0,0x16aa6,0x056d0,0x04ae0,0x0a9d4,0x0a2d0,0x0d150,0x0f252,//2090-2099
0x0d520],//2100
/**
* 公歷每個月份的天數普通表
* @Array Of Property
* @return Number
*/
solarMonth:[31,28,31,30,31,30,31,31,30,31,30,31],
/**
* 天干地支之天干速查表
* @Array Of Property trans["甲","乙","丙","丁","戊","己","庚","辛","壬","癸"]
* @return Cn string
*/
Gan:["\u7532","\u4e59","\u4e19","\u4e01","\u620a","\u5df1","\u5e9a","\u8f9b","\u58ec","\u7678"],
/**
* 天干地支之地支速查表
* @Array Of Property
* @trans["子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"]
* @return Cn string
*/
Zhi:["\u5b50","\u4e11","\u5bc5","\u536f","\u8fb0","\u5df3","\u5348","\u672a","\u7533","\u9149","\u620c","\u4ea5"],
/**
* 天干地支之地支速查表<=>生肖
* @Array Of Property
* @trans["鼠","牛","虎","兔","龍","蛇","馬","羊","猴","雞","狗","豬"]
* @return Cn string
*/
Animals:["\u9f20","\u725b","\u864e","\u5154","\u9f99","\u86c7","\u9a6c","\u7f8a","\u7334","\u9e21","\u72d7","\u732a"],
/**
* 24節氣速查表
* @Array Of Property
* @trans["小寒","大寒","立春","雨水","驚蟄","春分","清明","谷雨","立夏","小滿","芒種","夏至","小暑","大暑","立秋","處暑","白露","秋分","寒露","霜降","立冬","小雪","大雪","冬至"]
* @return Cn string
*/
solarTerm:["\u5c0f\u5bd2","\u5927\u5bd2","\u7acb\u6625","\u96e8\u6c34","\u60ca\u86f0","\u6625\u5206","\u6e05\u660e","\u8c37\u96e8","\u7acb\u590f","\u5c0f\u6ee1","\u8292\u79cd","\u590f\u81f3","\u5c0f\u6691","\u5927\u6691","\u7acb\u79cb","\u5904\u6691","\u767d\u9732","\u79cb\u5206","\u5bd2\u9732","\u971c\u964d","\u7acb\u51ac","\u5c0f\u96ea","\u5927\u96ea","\u51ac\u81f3"],
/**
* 1900-2100各年的24節氣日期速查表
* @Array Of Property
* @return 0x string For splice
*/
sTermInfo:['9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e','97bcf97c3598082c95f8c965cc920f',
'97bd0b06bdb0722c965ce1cfcc920f','b027097bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
'97bcf97c359801ec95f8c965cc920f','97bd0b06bdb0722c965ce1cfcc920f','b027097bd097c36b0b6fc9274c91aa',
'97b6b97bd19801ec9210c965cc920e','97bcf97c359801ec95f8c965cc920f','97bd0b06bdb0722c965ce1cfcc920f',
'b027097bd097c36b0b6fc9274c91aa','9778397bd19801ec9210c965cc920e','97b6b97bd19801ec95f8c965cc920f',
'97bd09801d98082c95f8e1cfcc920f','97bd097bd097c36b0b6fc9210c8dc2','9778397bd197c36c9210c9274c91aa',
'97b6b97bd19801ec95f8c965cc920e','97bd09801d98082c95f8e1cfcc920f','97bd097bd097c36b0b6fc9210c8dc2',
'9778397bd097c36c9210c9274c91aa','97b6b97bd19801ec95f8c965cc920e','97bcf97c3598082c95f8e1cfcc920f',
'97bd097bd097c36b0b6fc9210c8dc2','9778397bd097c36c9210c9274c91aa','97b6b97bd19801ec9210c965cc920e',
'97bcf97c3598082c95f8c965cc920f','97bd097bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
'97b6b97bd19801ec9210c965cc920e','97bcf97c3598082c95f8c965cc920f','97bd097bd097c35b0b6fc920fb0722',
'9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e','97bcf97c359801ec95f8c965cc920f',
'97bd097bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
'97bcf97c359801ec95f8c965cc920f','97bd097bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
'97b6b97bd19801ec9210c965cc920e','97bcf97c359801ec95f8c965cc920f','97bd097bd07f595b0b6fc920fb0722',
'9778397bd097c36b0b6fc9210c8dc2','9778397bd19801ec9210c9274c920e','97b6b97bd19801ec95f8c965cc920f',
'97bd07f5307f595b0b0bc920fb0722','7f0e397bd097c36b0b6fc9210c8dc2','9778397bd097c36c9210c9274c920e',
'97b6b97bd19801ec95f8c965cc920f','97bd07f5307f595b0b0bc920fb0722','7f0e397bd097c36b0b6fc9210c8dc2',
'9778397bd097c36c9210c9274c91aa','97b6b97bd19801ec9210c965cc920e','97bd07f1487f595b0b0bc920fb0722',
'7f0e397bd097c36b0b6fc9210c8dc2','9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
'97bcf7f1487f595b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
'97b6b97bd19801ec9210c965cc920e','97bcf7f1487f595b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722',
'9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e','97bcf7f1487f531b0b0bb0b6fb0722',
'7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa','97b6b97bd19801ec9210c965cc920e',
'97bcf7f1487f531b0b0bb0b6fb0722','7f0e397bd07f595b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
'97b6b97bd19801ec9210c9274c920e','97bcf7f0e47f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722',
'9778397bd097c36b0b6fc9210c91aa','97b6b97bd197c36c9210c9274c920e','97bcf7f0e47f531b0b0bb0b6fb0722',
'7f0e397bd07f595b0b0bc920fb0722','9778397bd097c36b0b6fc9210c8dc2','9778397bd097c36c9210c9274c920e',
'97b6b7f0e47f531b0723b0b6fb0722','7f0e37f5307f595b0b0bc920fb0722','7f0e397bd097c36b0b6fc9210c8dc2',
'9778397bd097c36b0b70c9274c91aa','97b6b7f0e47f531b0723b0b6fb0721','7f0e37f1487f595b0b0bb0b6fb0722',
'7f0e397bd097c35b0b6fc9210c8dc2','9778397bd097c36b0b6fc9274c91aa','97b6b7f0e47f531b0723b0b6fb0721',
'7f0e27f1487f595b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa',
'97b6b7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722',
'9778397bd097c36b0b6fc9274c91aa','97b6b7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722',
'7f0e397bd097c35b0b6fc920fb0722','9778397bd097c36b0b6fc9274c91aa','97b6b7f0e47f531b0723b0b6fb0721',
'7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722','9778397bd097c36b0b6fc9274c91aa',
'97b6b7f0e47f531b0723b0787b0721','7f0e27f0e47f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722',
'9778397bd097c36b0b6fc9210c91aa','97b6b7f0e47f149b0723b0787b0721','7f0e27f0e47f531b0723b0b6fb0722',
'7f0e397bd07f595b0b0bc920fb0722','9778397bd097c36b0b6fc9210c8dc2','977837f0e37f149b0723b0787b0721',
'7f07e7f0e47f531b0723b0b6fb0722','7f0e37f5307f595b0b0bc920fb0722','7f0e397bd097c35b0b6fc9210c8dc2',
'977837f0e37f14998082b0787b0721','7f07e7f0e47f531b0723b0b6fb0721','7f0e37f1487f595b0b0bb0b6fb0722',
'7f0e397bd097c35b0b6fc9210c8dc2','977837f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
'7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722','977837f0e37f14998082b0787b06bd',
'7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd097c35b0b6fc920fb0722',
'977837f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722',
'7f0e397bd07f595b0b0bc920fb0722','977837f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
'7f0e27f1487f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722','977837f0e37f14998082b0787b06bd',
'7f07e7f0e47f149b0723b0787b0721','7f0e27f0e47f531b0b0bb0b6fb0722','7f0e397bd07f595b0b0bc920fb0722',
'977837f0e37f14998082b0723b06bd','7f07e7f0e37f149b0723b0787b0721','7f0e27f0e47f531b0723b0b6fb0722',
'7f0e397bd07f595b0b0bc920fb0722','977837f0e37f14898082b0723b02d5','7ec967f0e37f14998082b0787b0721',
'7f07e7f0e47f531b0723b0b6fb0722','7f0e37f1487f595b0b0bb0b6fb0722','7f0e37f0e37f14898082b0723b02d5',
'7ec967f0e37f14998082b0787b0721','7f07e7f0e47f531b0723b0b6fb0722','7f0e37f1487f531b0b0bb0b6fb0722',
'7f0e37f0e37f14898082b0723b02d5','7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
'7f0e37f1487f531b0b0bb0b6fb0722','7f0e37f0e37f14898082b072297c35','7ec967f0e37f14998082b0787b06bd',
'7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722','7f0e37f0e37f14898082b072297c35',
'7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722',
'7f0e37f0e366aa89801eb072297c35','7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f149b0723b0787b0721',
'7f0e27f1487f531b0b0bb0b6fb0722','7f0e37f0e366aa89801eb072297c35','7ec967f0e37f14998082b0723b06bd',
'7f07e7f0e47f149b0723b0787b0721','7f0e27f0e47f531b0723b0b6fb0722','7f0e37f0e366aa89801eb072297c35',
'7ec967f0e37f14998082b0723b06bd','7f07e7f0e37f14998083b0787b0721','7f0e27f0e47f531b0723b0b6fb0722',
'7f0e37f0e366aa89801eb072297c35','7ec967f0e37f14898082b0723b02d5','7f07e7f0e37f14998082b0787b0721',
'7f07e7f0e47f531b0723b0b6fb0722','7f0e36665b66aa89801e9808297c35','665f67f0e37f14898082b0723b02d5',
'7ec967f0e37f14998082b0787b0721','7f07e7f0e47f531b0723b0b6fb0722','7f0e36665b66a449801e9808297c35',
'665f67f0e37f14898082b0723b02d5','7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721',
'7f0e36665b66a449801e9808297c35','665f67f0e37f14898082b072297c35','7ec967f0e37f14998082b0787b06bd',
'7f07e7f0e47f531b0723b0b6fb0721','7f0e26665b66a449801e9808297c35','665f67f0e37f1489801eb072297c35',
'7ec967f0e37f14998082b0787b06bd','7f07e7f0e47f531b0723b0b6fb0721','7f0e27f1487f531b0b0bb0b6fb0722'],
/**
* 數字轉中文速查表
* @Array Of Property
* @trans ['日','一','二','三','四','五','六','七','八','九','十']
* @return Cn string
*/
nStr1:["\u65e5","\u4e00","\u4e8c","\u4e09","\u56db","\u4e94","\u516d","\u4e03","\u516b","\u4e5d","\u5341"],
/**
* 日期轉農歷稱呼速查表
* @Array Of Property
* @trans ['初','十','廿','卅']
* @return Cn string
*/
nStr2:["\u521d","\u5341","\u5eff","\u5345"],
/**
* 月份轉農歷稱呼速查表
* @Array Of Property
* @trans ['正','一','二','三','四','五','六','七','八','九','十','冬','臘']
* @return Cn string
*/
nStr3:["\u6b63","\u4e8c","\u4e09","\u56db","\u4e94","\u516d","\u4e03","\u516b","\u4e5d","\u5341","\u51ac","\u814a"],
/**
* 返回農歷y年一整年的總天數
* @param lunar Year
* @return Number
* @eg:var count = calendar.lYearDays(1987) ;//count=387
*/
lYearDays:function(y) {
var i, sum = 348;
for(i=0x8000; i>0x8; i>>=1) { sum += (calendar.lunarInfo[y-1900] & i)? 1: 0; }
return(sum+calendar.leapDays(y));
},
/**
* 返回農歷y年閏月是哪個月；若y年沒有閏月 則返回0
* @param lunar Year
* @return Number (0-12)
* @eg:var leapMonth = calendar.leapMonth(1987) ;//leapMonth=6
*/
leapMonth:function(y) { //閏字編碼 \u95f0
return(calendar.lunarInfo[y-1900] & 0xf);
},
/**
* 返回農歷y年閏月的天數 若該年沒有閏月則返回0
* @param lunar Year
* @return Number (0、29、30)
* @eg:var leapMonthDay = calendar.leapDays(1987) ;//leapMonthDay=29
*/
leapDays:function(y) {
if(calendar.leapMonth(y)) {
return((calendar.lunarInfo[y-1900] & 0x10000)? 30: 29);
}
return(0);
},
/**
* 返回農歷y年m月（非閏月）的總天數，計算m為閏月時的天數請使用leapDays方法
* @param lunar Year
* @return Number (-1、29、30)
* @eg:var MonthDay = calendar.monthDays(1987,9) ;//MonthDay=29
*/
monthDays:function(y,m) {
if(m>12 || m<1) {return -1}//月份參數從1至12，參數錯誤返回-1
return( (calendar.lunarInfo[y-1900] & (0x10000>>m))? 30: 29 );
},
/**
* 返回公歷(!)y年m月的天數
* @param solar Year
* @return Number (-1、28、29、30、31)
* @eg:var solarMonthDay = calendar.leapDays(1987) ;//solarMonthDay=30
*/
solarDays:function(y,m) {
if(m>12 || m<1) {return -1} //若參數錯誤 返回-1
var ms = m-1;
if(ms==1) { //2月份的閏平規律測算后確認返回28或29
return(((y%4 == 0) && (y%100 != 0) || (y%400 == 0))? 29: 28);
}else {
return(calendar.solarMonth[ms]);
}
},
/**
* 農歷年份轉換為干支紀年
* @param lYear 農歷年的年份數
* @return Cn string
*/
toGanZhiYear:function(lYear) {
var ganKey = (lYear - 3) % 10;
var zhiKey = (lYear - 3) % 12;
if(ganKey == 0) ganKey = 10;//如果余數為0則為最后一個天干
if(zhiKey == 0) zhiKey = 12;//如果余數為0則為最后一個地支
return calendar.Gan[ganKey-1] + calendar.Zhi[zhiKey-1];
},
/**
* 公歷月、日判斷所屬星座
* @param cMonth [description]
* @param cDay [description]
* @return Cn string
*/
toAstro:function(cMonth,cDay) {
var s = "\u9b54\u7faf\u6c34\u74f6\u53cc\u9c7c\u767d\u7f8a\u91d1\u725b\u53cc\u5b50\u5de8\u87f9\u72ee\u5b50\u5904\u5973\u5929\u79e4\u5929\u874e\u5c04\u624b\u9b54\u7faf";
var arr = [20,19,21,21,21,22,23,23,23,23,22,22];
return s.substr(cMonth*2 - (cDay < arr[cMonth-1] ? 2 : 0),2) + "\u5ea7";//座
},
/**
* 傳入offset偏移量返回干支
* @param offset 相對甲子的偏移量
* @return Cn string
*/
toGanZhi:function(offset) {
return calendar.Gan[offset%10] + calendar.Zhi[offset%12];
},
/**
* 傳入公歷(!)y年獲得該年第n個節氣的公歷日期
* @param y公歷年(1900-2100)；n二十四節氣中的第幾個節氣(1~24)；從n=1(小寒)算起
* @return day Number
* @eg:var _24 = calendar.getTerm(1987,3) ;//_24=4;意即1987年2月4日立春
*/
getTerm:function(y,n) {
if(y<1900 || y>2100) {return -1;}
if(n<1 || n>24) {return -1;}
var _table = calendar.sTermInfo[y-1900];
var _info = [
parseInt('0x'+_table.substr(0,5)).toString() ,
parseInt('0x'+_table.substr(5,5)).toString(),
parseInt('0x'+_table.substr(10,5)).toString(),
parseInt('0x'+_table.substr(15,5)).toString(),
parseInt('0x'+_table.substr(20,5)).toString(),
parseInt('0x'+_table.substr(25,5)).toString()
];
var _calday = [
_info[0].substr(0,1),
_info[0].substr(1,2),
_info[0].substr(3,1),
_info[0].substr(4,2),
_info[1].substr(0,1),
_info[1].substr(1,2),
_info[1].substr(3,1),
_info[1].substr(4,2),
_info[2].substr(0,1),
_info[2].substr(1,2),
_info[2].substr(3,1),
_info[2].substr(4,2),
_info[3].substr(0,1),
_info[3].substr(1,2),
_info[3].substr(3,1),
_info[3].substr(4,2),
_info[4].substr(0,1),
_info[4].substr(1,2),
_info[4].substr(3,1),
_info[4].substr(4,2),
_info[5].substr(0,1),
_info[5].substr(1,2),
_info[5].substr(3,1),
_info[5].substr(4,2),
];
return parseInt(_calday[n-1]);
},
/**
* 傳入農歷數字月份返回漢語通俗表示法
* @param lunar month
* @return Cn string
* @eg:var cnMonth = calendar.toChinaMonth(12) ;//cnMonth='臘月'
*/
toChinaMonth:function(m) { // 月 => \u6708
if(m>12 || m<1) {return -1} //若參數錯誤 返回-1
var s = calendar.nStr3[m-1];
s+= "\u6708";//加上月字
return s;
},
/**
* 傳入農歷日期數字返回漢字表示法
* @param lunar day
* @return Cn string
* @eg:var cnDay = calendar.toChinaDay(21) ;//cnMonth='廿一'
*/
toChinaDay:function(d){ //日 => \u65e5
var s;
switch (d) {
case 10:
s = '\u521d\u5341'; break;
case 20:
s = '\u4e8c\u5341'; break;
break;
case 30:
s = '\u4e09\u5341'; break;
break;
default :
s = calendar.nStr2[Math.floor(d/10)];
s += calendar.nStr1[d%10];
}
return(s);
},
/**
* 年份轉生肖[!僅能大致轉換] => 精確劃分生肖分界線是“立春”
* @param y year
* @return Cn string
* @eg:var animal = calendar.getAnimal(1987) ;//animal='兔'
*/
getAnimal: function(y) {
return calendar.Animals[(y - 4) % 12]
},
/**
* 傳入陽歷年月日獲得詳細的公歷、農歷object信息 <=>JSON
* @param y solar year
* @param m solar month
* @param d solar day
* @return JSON object
* @eg:console.log(calendar.solar2lunar(1987,11,01));
*/
solar2lunar:function (y,m,d) { //參數區間1900.1.31~2100.12.31
if(y<1900 || y>2100) {return -1;}//年份限定、上限
if(y==1900&&m==1&&d<31) {return -1;}//下限
if(!y) { //未傳參 獲得當天
var objDate = new Date();
}else {
var objDate = new Date(y,parseInt(m)-1,d)
}
var i, leap=0, temp=0;
//修正ymd參數
var y = objDate.getFullYear(),m = objDate.getMonth()+1,d = objDate.getDate();
var offset = (Date.UTC(objDate.getFullYear(),objDate.getMonth(),objDate.getDate()) - Date.UTC(1900,0,31))/86400000;
for(i=1900; i<2101 && offset>0; i++) { temp=calendar.lYearDays(i); offset-=temp; }
if(offset<0) { offset+=temp; i--; }
//是否今天
var isTodayObj = new Date(),isToday=false;
if(isTodayObj.getFullYear()==y && isTodayObj.getMonth()+1==m && isTodayObj.getDate()==d) {
isToday = true;
}
//星期幾
var nWeek = objDate.getDay(),cWeek = calendar.nStr1[nWeek];
if(nWeek==0) {nWeek =7;}//數字表示周幾順應天朝周一開始的慣例
//農歷年
var year = i;
var leap = calendar.leapMonth(i); //閏哪個月
var isLeap = false;
//效驗閏月
for(i=1; i<13 && offset>0; i++) {
//閏月
if(leap>0 && i==(leap+1) && isLeap==false){
--i;
isLeap = true; temp = calendar.leapDays(year); //計算農歷閏月天數
}
else{
temp = calendar.monthDays(year, i);//計算農歷普通月天數
}
//解除閏月
if(isLeap==true && i==(leap+1)) { isLeap = false; }
offset -= temp;
}
if(offset==0 && leap>0 && i==leap+1)
if(isLeap){
isLeap = false;
}else{
isLeap = true; --i;
}
if(offset<0){ offset += temp; --i; }
//農歷月
var month = i;
//農歷日
var day = offset + 1;
//天干地支處理
var sm = m-1;
var gzY = calendar.toGanZhiYear(year);
//月柱 1900年1月小寒以前為 丙子月(60進制12)
var firstNode = calendar.getTerm(year,(m*2-1));//返回當月「節」為幾日開始
var secondNode = calendar.getTerm(year,(m*2));//返回當月「節」為幾日開始
//依據12節氣修正干支月
var gzM = calendar.toGanZhi((y-1900)*12+m+11);
if(d>=firstNode) {
gzM = calendar.toGanZhi((y-1900)*12+m+12);
}
//傳入的日期的節氣與否
var isTerm = false;
var Term = null;
if(firstNode==d) {
isTerm = true;
Term = calendar.solarTerm[m*2-2];
}
if(secondNode==d) {
isTerm = true;
Term = calendar.solarTerm[m*2-1];
}
//日柱 當月一日與 1900/1/1 相差天數
var dayCyclical = Date.UTC(y,sm,1,0,0,0,0)/86400000+25567+10;
var gzD = calendar.toGanZhi(dayCyclical+d-1);
//該日期所屬的星座
var astro = calendar.toAstro(m,d);
return {'lYear':year,'lMonth':month,'lDay':day,'Animal':calendar.getAnimal(year),'IMonthCn':(isLeap?"\u95f0":'')+calendar.toChinaMonth(month),'IDayCn':calendar.toChinaDay(day),'cYear':y,'cMonth':m,'cDay':d,'gzYear':gzY,'gzMonth':gzM,'gzDay':gzD,'isToday':isToday,'isLeap':isLeap,'nWeek':nWeek,'ncWeek':"\u661f\u671f"+cWeek,'isTerm':isTerm,'Term':Term,'astro':astro};
},
/**
* 傳入農歷年月日以及傳入的月份是否閏月獲得詳細的公歷、農歷object信息 <=>JSON
* @param y lunar year
* @param m lunar month
* @param d lunar day
* @param isLeapMonth lunar month is leap or not.[如果是農歷閏月第四個參數賦值true即可]
* @return JSON object
* @eg:console.log(calendar.lunar2solar(1987,9,10));
*/
lunar2solar:function(y,m,d,isLeapMonth) { //參數區間1900.1.31~2100.12.1
var isLeapMonth = !!isLeapMonth;
var leapOffset = 0;
var leapMonth = calendar.leapMonth(y);
var leapDay = calendar.leapDays(y);
if(isLeapMonth&&(leapMonth!=m)) {return -1;}//傳參要求計算該閏月公歷 但該年得出的閏月與傳參的月份并不同
if(y==2100&&m==12&&d>1 || y==1900&&m==1&&d<31) {return -1;}//超出了最大極限值
var day = calendar.monthDays(y,m);
var _day = day;
//bugFix 2016-9-25
//if month is leap, _day use leapDays method
if(isLeapMonth) {
_day = calendar.leapDays(y,m);
}
if(y < 1900 || y > 2100 || d > _day) {return -1;}//參數合法性效驗
//計算農歷的時間差
var offset = 0;
for(var i=1900;i<y;i++) {
offset+=calendar.lYearDays(i);
}
var leap = 0,isAdd= false;
for(var i=1;i<m;i++) {
leap = calendar.leapMonth(y);
if(!isAdd) {//處理閏月
if(leap<=i && leap>0) {
offset+=calendar.leapDays(y);isAdd = true;
}
}
offset+=calendar.monthDays(y,i);
}
//轉換閏月農歷 需補充該年閏月的前一個月的時差
if(isLeapMonth) {offset+=day;}
//1900年農歷正月一日的公歷時間為1900年1月30日0時0分0秒(該時間也是本農歷的最開始起始點)
var stmap = Date.UTC(1900,1,30,0,0,0);
var calObj = new Date((offset+d-31)*86400000+stmap);
var cY = calObj.getUTCFullYear();
var cM = calObj.getUTCMonth()+1;
var cD = calObj.getUTCDate();
return calendar.solar2lunar(cY,cM,cD);
}
};
使用的方法是：
/**公歷年月日轉農歷數據 返回json**/
calendar.solar2lunar(1987,11,01);
/**農歷年月日轉公歷年月日**/
calendar.lunar2solar(1987,9,10);
//調用以上方法后返回類似如下object（json）具體以上就不需要解釋了吧！
//c開頭的是公歷各屬性值 l開頭的自然就是農歷咯 gz開頭的就是天干地支紀年的數據啦~
{
Animal: "兔",
IDayCn: "初十",
IMonthCn: "九月",
Term: null,
astro: "天蝎座",
cDay: 1,
cMonth: 11,
cYear: 1987,
gzDay: "甲寅",
gzMonth: "庚戌",
gzYear: "丁卯",
isLeap: false,
isTerm: false,
isToday: false,
lDay: 10,
lMonth: 9,
lYear: 1987,
nWeek: 7,
ncWeek: "星期日"
}
//該代碼還有其他可以調用的方法，請自己查看代碼中的詳細注釋
三、效果圖
因為工作的源碼不能泄露，所以日歷的 實現代碼就不貼出了。但效果圖如下：
PS：這里再為大家推薦幾款日歷相關在線工具供大家參考：
網頁萬年歷日歷：
http://tools.jb51.net/bianmin/webwannianli
在線陰歷/陽歷轉換工具：
http://tools.jb51.net/bianmin/yinli2yangli
在線萬年歷日歷：
http://tools.jb51.net/bianmin/wannianli
在線萬年歷黃歷flash版：
http://tools.jb51.net/bianmin/flashwnl
另外，本站歷史上的今天也有相似的農歷日期顯示功能：
http://tools.jb51.net/bianmin/lishi
更多關于JavaScript相關內容感興趣的讀者可查看本站專題：《JavaScript時間與日期操作技巧總結》《JavaScript錯誤與調試技巧總結》、《JavaScript數據結構與算法技巧總結》、《JavaScript遍歷算法與技巧總結》及《JavaScript數學運算用法總結》
希望本文所述對大家JavaScript程序設計有所幫助。
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