农历转换函数

最新推荐文章于 2021-06-04 22:27:52 发布

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最新推荐文章于 2021-06-04 22:27:52 发布

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//农历转换函数
+(NSString *)LunarForSolar:(NSDate *)solarDate{
//天干名称
NSArray *cTianGan = [NSArray arrayWithObje c ts:@"甲",@"乙",@"丙",@"丁",@"戊",@"己",@"庚",@"辛",@"壬",@"癸", nil];

//地支名称
NSArray *cDiZhi = [NSArray arrayWithObjects:@"子",@"丑",@"寅",@"卯",@"辰",@"巳",@"午",@"未",@"申",@"酉",@"戌",@"亥",nil];

//属相名称
NSArray *cShuXiang = [NSArray arrayWithObjects:@"鼠",@"牛",@"虎",@"兔",@"龙",@"蛇",@"马",@"羊",@"猴",@"鸡",@"狗",@"猪",nil];

//农历日期名
NSArray *cDayName = [NSArray arrayWithObjects:@"*",@"初一",@"初二",@"初三",@"初四",@"初五",@"初六",@"初七",@"初八",@"初九",@"初十",
@"十一",@"十二",@"十三",@"十四",@"十五",@"十六",@"十七",@"十八",@"十九",@"二十",
@"廿一",@"廿二",@"廿三",@"廿四",@"廿五",@"廿六",@"廿七",@"廿八",@"廿九",@"三十",nil];

//农历月份名
NSArray *cMonName = [NSArray arrayWithObjects:@"*",@"正",@"二",@"三",@"四",@"五",@"六",@"七",@"八",@"九",@"十",@"十一",@"腊",nil];

//公历每月前面的天数
const int wMonthAdd[12] = {0,31,59,90,120,151,181,212,243,273,304,334};

//农历数据
const int wNongliData[100] = {2635,333387,1701,1748,267701,694,2391,133423,1175,396438
,3402,3749,331177,1453,694,201326,2350,465197,3221,3402
,400202,2901,1386,267611,605,2349,137515,2709,464533,1738
,2901,330421,1242,2651,199255,1323,529706,3733,1706,398762
,2741,1206,267438,2647,1318,204070,3477,461653,1386,2413
,330077,1197,2637,268877,3365,531109,2900,2922,398042,2395
,1179,267415,2635,661067,1701,1748,398772,2742,2391,330031
,1175,1611,200010,3749,527717,1452,2742,332397,2350,3222
,268949,3402,3493,133973,1386,464219,605,2349,334123,2709
,2890,267946,2773,592565,1210,2651,395863,1323,2707,265877};

static int wCurYear,wCurMonth,wCurDay;
static int nTheDate,nIsEnd,m,k,n,i,nBit;

//取当前公历年、月、日
NSDateComponents *components = [[NSCalendar currentCalendar] components:NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit fromDate:solarDate];
wCurYear = [components year];
wCurMonth = [components month];
wCurDay = [components day];

//计算到初始时间1921年2月8日的天数：1921-2-8(正月初一)
nTheDate = (wCurYear - 1921) * 365 + (wCurYear - 1921) / 4 + wCurDay + wMonthAdd[wCurMonth - 1] - 38;
if((!(wCurYear % 4)) && (wCurMonth > 2))
nTheDate = nTheDate + 1;

//计算农历天干、地支、月、日
nIsEnd = 0;
m = 0;
while(nIsEnd != 1)
{
if(wNongliData[m] < 4095)
k = 11;
else
k = 12;
n = k;
while(n>=0)
{
//获取wNongliData(m)的第n个二进制位的值
nBit = wNongliData[m];
for(i=1;i<n+1;i++)
nBit = nBit/2;

nBit = nBit % 2;

if (nTheDate <= (29 + nBit))
{
nIsEnd = 1;
break;
}

nTheDate = nTheDate - 29 - nBit;
n = n - 1;
}
if(nIsEnd)
break;
m = m + 1;
}
wCurYear = 1921 + m;
wCurMonth = k - n + 1;
wCurDay = nTheDate;
if (k == 12)
{
if (wCurMonth == wNongliData[m] / 65536 + 1)
wCurMonth = 1 - wCurMonth;
else if (wCurMonth > wNongliData[m] / 65536 + 1)
wCurMonth = wCurMonth - 1;
}

//生成农历天干、地支、属相
NSString *szShuXiang = (NSString *)[cShuXiang objectAtIndex:((wCurYear - 4) % 60) % 12];
NSString *szNongli = [NSString stringWithFormat:@"%@(%@%@)年",szShuXiang, (NSString *)[cTianGan objectAtIndex:((wCurYear - 4) % 60) % 10],(NSString *)[cDiZhi objectAtIndex:((wCurYear - 4) % 60) % 12]];

//生成农历月、日
NSString *szNongliDay;
if (wCurMonth < 1){
szNongliDay = [NSString stringWithFormat:@"闰%@",(NSString *)[cMonName objectAtIndex:-1 * wCurMonth]];
}
else{
szNongliDay = (NSString *)[cMonName objectAtIndex:wCurMonth];
}

NSString *lunarDate = [NSString stringWithFormat:@"%@ %@月 %@",szNongli,szNongliDay,(NSString *)[cDayName objectAtIndex:wCurDay]];

return lunarDate;
}