iOS获取农历方法

/* * @DO 获取指定日期的农历日期 * @param date [指定日期] * @return (NSString)[指定日期的农历字符串] */+(NSString*)getChineseCalendarWithDate:(NSDate *)date{    //定义农历数据:    NSArray *chineseYears = [NSArray arrayWithObjects:                             @"甲子", @"乙丑", @"丙寅", @"丁卯", @"戊辰", @"己巳", @"庚午", @"辛未", @"壬申", @"癸酉",                             @"甲戌", @"乙亥", @"丙子", @"丁丑", @"戊寅", @"己卯", @"庚辰", @"辛己", @"壬午", @"癸未",                             @"甲申", @"乙酉", @"丙戌", @"丁亥", @"戊子", @"己丑", @"庚寅", @"辛卯", @"壬辰", @"癸巳",                             @"甲午", @"乙未", @"丙申", @"丁酉", @"戊戌", @"己亥", @"庚子", @"辛丑", @"壬寅", @"癸丑",                             @"甲辰", @"乙巳", @"丙午", @"丁未", @"戊申", @"己酉", @"庚戌", @"辛亥", @"壬子", @"癸丑",                             @"甲寅", @"乙卯", @"丙辰", @"丁巳", @"戊午", @"己未", @"庚申", @"辛酉", @"壬戌", @"癸亥", nil];    NSArray *chineseMonths=[NSArray arrayWithObjects:                            @"正月", @"二月", @"三月", @"四月", @"五月", @"六月",                             @"七月", @"八月", @"九月", @"十月", @"冬月", @"腊月", nil];    NSArray *chineseDays=[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];    NSCalendar *localeCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSChineseCalendar];    unsigned unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit;    NSDateComponents *localeComp = [localeCalendar components:unitFlags fromDate:date];        NSString *y_str = [chineseYears objectAtIndex:localeComp.year-1];    NSString *m_str = [chineseMonths objectAtIndex:localeComp.month-1];    NSString *d_str = [chineseDays objectAtIndex:localeComp.day-1];    NSString *chineseCal_str =[NSString stringWithFormat: @"%@_%@_%@",y_str,m_str,d_str];    [localeCalendar release];    return chineseCal_str;}