iOS 阳历日期转农历的方法

-(NSString *)LunarForSolarYear:(int)wCurYear Month:(int)wCurMonth Day:(NSInteger)wCurDay{

//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 nTheDate,nIsEnd,m,k,n,i,nBit;

//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;

}

//生成农历月

NSString *szNongliMonth;

if (wCurMonth < 1){

szNongliMonth = [NSString stringWithFormat:@"闰%@",(NSString *)[cMonName objectAtIndex:-1 * wCurMonth]];

}else{

szNongliMonth = (NSString *)[cMonName objectAtIndex:wCurMonth];

}

//生成农历日

NSString *szNongliDay = [cDayName objectAtIndex:wCurDay];

//合并

NSString *lunarDate = [NSString stringWithFormat:@"农历丙申年%@月%@",szNongliMonth,szNongliDay];

return lunarDate;

}