中国公历算法中国公历算法不是太难，关键是星期值的确定。

这里给出了简单算法：public static int dayOfWeek(int y, int m, int d) {int w = 1; // 公历一年一月一日是星期一，所以起始值为星期日y = (y-1)%400 + 1; // 公历星期值分部 400 年循环一次int ly = (y-1)/4; // 闰年次数ly = ly - (y-1)/100;ly = ly + (y-1)/400;int ry = y - 1 - ly; // 常年次数w = w + ry; // 常年星期值增一w = w + 2*ly; // 闰年星期值增二w = w + dayOfYear(y,m,d);w = (w-1)%7 + 1;return w;}中国农历算法根公历相比，中国农历的算法相当复杂。

我在网上找的算法之中， 的算法是最好的一个。

这个算法使用了大量的数据来确定农历月份和节气的分部，它仅实用于公历 1901 年到 2100 年之间的 200 年。

中国农历计算程式跟据 提供的算法，我写了下面这个程式：[HTML]/*** ChineseCalendarGB.java* Copyright (c) 1997-2002 by Dr. Herong Yang./* 中国农历算法 - 实用于公历 1901 年至 2100 年之间的 200 年*/import java.text.*;import java.util.*;class ChineseCalendarGB {private int gregorianYear;private int gregorianMonth;private int gregorianDate;private boolean isGregorianLeap;private int dayOfYear;private int dayOfWeek; // 周日一星期的第一天private int chineseYear;private int chineseMonth; // 负数表示闰月private int chineseDate;private int sectionalTerm;private int principleTerm;private static char[] daysInGregorianMonth ={31,28,31,30,31,30,31,31,30,31,30,31};private static String[] stemNames ={"甲","乙","丙","丁","戊","己","庚","辛","壬","癸"};private static String[] branchNames ={"子","丑","寅","卯","辰","巳","午","未","申","酉","戌","亥"};private static String[] animalNames ={"鼠","牛","虎","兔","龙","蛇","马","羊","猴","鸡","狗","猪"};public static void main(String[] arg) {ChineseCalendarGB c = new ChineseCalendarGB();String cmd = "day";int y = 1901;int m = 1;int d = 1;if (arg.length>0) cmd = arg[0];if (arg.length>1) y = Integer.parseInt(arg[1]);if (arg.length>2) m = Integer.parseInt(arg);if (arg.length>3) d = Integer.parseInt(arg);c.setGregorian(y,m,d);puteChineseFields();puteSolarTerms();if (cmd.equalsIgnoreCase("year")) {String[] t = c.getYearTable();for (int i=0; i< FONT>} else if (cmd.equalsIgnoreCase("month")) {String[] t = c.getMonthTable();for (int i=0; i< FONT>} else {System.out.println(c.toString());}}public ChineseCalendarGB() {setGregorian(1901,1,1);}public void setGregorian(int y, int m, int d) {gregorianYear = y;gregorianMonth = m;gregorianDate = d;isGregorianLeap = isGregorianLeapYear(y);dayOfYear = dayOfYear(y,m,d);dayOfWeek = dayOfWeek(y,m,d);chineseYear = 0;chineseMonth = 0;chineseDate = 0;sectionalTerm = 0;principleTerm = 0;}public static boolean isGregorianLeapYear(int year) { boolean isLeap = false;if (year%4==0) isLeap = true;if (year%100==0) isLeap = false;if (year%400==0) isLeap = true;return isLeap;}public static int daysInGregorianMonth(int y, int m) {int d = daysInGregorianMonth[m-1];if (m==2 && isGregorianLeapYear(y)) d++; // 公历闰年二月多一天return d;}public static int dayOfYear(int y, int m, int d) {int c = 0;for (int i=1; i<>c = c + daysInGregorianMonth(y,i);}c = c + d;return c;}public static int dayOfWeek(int y, int m, int d) {int w = 1; // 公历一年一月一日是星期一，所以起始值为星期日y = (y-1)%400 + 1; // 公历星期值分部 400 年循环一次int ly = (y-1)/4; // 闰年次数ly = ly - (y-1)/100;ly = ly + (y-1)/400;int ry = y - 1 - ly; // 常年次数w = w + ry; // 常年星期值增一w = w + 2*ly; // 闰年星期值增二w = w + dayOfYear(y,m,d);w = (w-1)%7 + 1;return w;}private static char[] chineseMonths = {// 农历月份大小压缩表，两个字节表示一年。

两个字节共十六个二进制位数，// 前四个位数表示闰月月份，后十二个位数表示十二个农历月份的大小。

0x00,0x04,0xad,0x08,0x5a,0x01,0xd5,0x54,0xb4,0x09,0x64,0x05, 0x59,0x45,0x95,0x0a,0xa6,0x04,0x55,0x24,0xad,0x08,0x5a,0x62,0xda,0x04, 0xb4,0x05,0xb4,0x55,0x52,0x0d,0x94,0x0a,0x4a,0x2a,0x56,0x02,0x6d,0x71, 0x6d,0x01,0xda,0x02,0xd2,0x52,0xa9,0x05,0x49,0x0d,0x2a,0x45,0x2b,0x09, 0x56,0x01,0xb5,0x20,0x6d,0x01,0x59,0x69,0xd4,0x0a,0xa8,0x05,0xa9,0x56, 0xa5,0x04,0x2b,0x09,0x9e,0x38,0xb6,0x08,0xec,0x74,0x6c,0x05,0xd4,0x0a, 0xe4,0x6a,0x52,0x05,0x95,0x0a,0x5a,0x42,0x5b,0x04,0xb6,0x04,0xb4,0x22, 0x6a,0x05,0x52,0x75,0xc9,0x0a,0x52,0x05,0x35,0x55,0x4d,0x0a,0x5a,0x02, 0x5d,0x31,0xb5,0x02,0x6a,0x8a,0x68,0x05,0xa9,0x0a,0x8a,0x6a,0x2a,0x05, 0x2d,0x09,0xaa,0x48,0x5a,0x01,0xb5,0x09,0xb0,0x39,0x64,0x05,0x25,0x75, 0x95,0x0a,0x96,0x04,0x4d,0x54,0xad,0x04,0xda,0x04,0xd4,0x44,0xb4,0x05, 0x54,0x85,0x52,0x0d,0x92,0x0a,0x56,0x6a,0x56,0x02,0x6d,0x02,0x6a,0x41, 0xda,0x02,0xb2,0xa1,0xa9,0x05,0x49,0x0d,0x0a,0x6d,0x2a,0x09,0x56,0x01, 0xad,0x50,0x6d,0x01,0xd9,0x02,0xd1,0x3a,0xa8,0x05,0x29,0x85,0xa5,0x0c, 0x2a,0x09,0x96,0x54,0xb6,0x08,0x6c,0x09,0x64,0x45,0xd4,0x0a,0xa4,0x05, 0x51,0x25,0x95,0x0a,0x2a,0x72,0x5b,0x04,0xb6,0x04,0xac,0x52,0x6a,0x05, 0xd2,0x0a,0xa2,0x4a,0x4a,0x05,0x55,0x94,0x2d,0x0a,0x5a,0x02,0x75,0x61, 0xb5,0x02,0x6a,0x03,0x61,0x45,0xa9,0x0a,0x4a,0x05,0x25,0x25,0x2d,0x09, 0x9a,0x68,0xda,0x08,0xb4,0x09,0xa8,0x59,0x54,0x03,0xa5,0x0a,0x91,0x3a, 0x96,0x04,0xad,0xb0,0xad,0x04,0xda,0x04,0xf4,0x62,0xb4,0x05,0x54,0x0b, 0x44,0x5d,0x52,0x0a,0x95,0x04,0x55,0x22,0x6d,0x02,0x5a,0x71,0xda,0x02, 0xaa,0x05,0xb2,0x55,0x49,0x0b,0x4a,0x0a,0x2d,0x39,0x36,0x01,0x6d,0x80, 0x6d,0x01,0xd9,0x02,0xe9,0x6a,0xa8,0x05,0x29,0x0b,0x9a,0x4c,0xaa,0x08, 0xb6,0x08,0xb4,0x38,0x6c,0x09,0x54,0x75,0xd4,0x0a,0xa4,0x05,0x45,0x55, 0x95,0x0a,0x9a,0x04,0x55,0x44,0xb5,0x04,0x6a,0x82,0x6a,0x05,0xd2,0x0a, 0x92,0x6a,0x4a,0x05,0x55,0x0a,0x2a,0x4a,0x5a,0x02,0xb5,0x02,0xb2,0x31, 0x69,0x03,0x31,0x73,0xa9,0x0a,0x4a,0x05,0x2d,0x55,0x2d,0x09,0x5a,0x01, 0xd5,0x48,0xb4,0x09,0x68,0x89,0x54,0x0b,0xa4,0x0a,0xa5,0x6a,0x95,0x04, 0xad,0x08,0x6a,0x44,0xda,0x04,0x74,0x05,0xb0,0x25,0x54,0x03};// 初始日，公历农历对应日期：// 公历 1901 年 1 月 1 日，对应农历 4598 年 11 月 11 日private static int baseYear = 1901;private static int baseMonth = 1;private static int baseDate = 1;private static int baseIndex = 0;private static int baseChineseYear = 4598-1;private static int baseChineseMonth = 11;private static int baseChineseDate = 11;public int computeChineseFields() {if (gregorianYear<1901 || gregorianYear>2100) return 1; int startYear = baseYear;int startMonth = baseMonth;int startDate = baseDate;chineseYear = baseChineseYear;chineseMonth = baseChineseMonth;chineseDate = baseChineseDate;// 第二个对应日，用以提高计算效率// 公历 2000 年 1 月 1 日，对应农历 4697 年 11 月 25 日 if (gregorianYear >= 2000) {startYear = baseYear + 99;startMonth = 1;startDate = 1;chineseYear = baseChineseYear + 99;chineseMonth = 11;chineseDate = 25;}int daysDiff = 0;for (int i=startYear; i<>daysDiff += 365;if (isGregorianLeapYear(i)) daysDiff += 1; // leap year }for (int i=startMonth; i<>daysDiff += daysInGregorianMonth(gregorianYear,i);}daysDiff += gregorianDate - startDate;chineseDate += daysDiff;int lastDate = daysInChineseMonth(chineseYear, chineseMonth); int nextMonth = nextChineseMonth(chineseYear, chineseMonth); while (chineseDate>lastDate) {if (Math.abs(nextMonth)<>chineseMonth = nextMonth;chineseDate -= lastDate;lastDate = daysInChineseMonth(chineseYear, chineseMonth); nextMonth = nextChineseMonth(chineseYear, chineseMonth); }return 0;}private static int[] bigLeapMonthYears = {// 大闰月的闰年年份6, 14, 19, 25, 33, 36, 38, 41, 44, 52,55, 79,117,136,147,150,155,158,185,193};public static int daysInChineseMonth(int y, int m) {农历日期的算法cs99619 | 2010年10月25日 | 精品收藏 | 评论:(0) | 浏览:(47)转发至新浪微博转发至腾讯微博转帖到开心网转帖到人人网当前位置：笨朱先行» 精品收藏» 农历日期的算法阴历日期是以月亮的圆缺为计月单位，其以逢朔为初一，以月望为十五（大月为十六日），以月晦为二十九日（大月为三十日）。