iOS-将阿拉伯数字转换成汉文数字或者将日期转换成古月份

一.将阿拉伯数字转换成汉文数字

   - (NSString *)translationArabicNum:(NSInteger)arabicNum
    {
        NSString *arabicNumStr = [NSString stringWithFormat:@"%ld",(long)arabicNum];
        NSArray *arabicNumeralsArray = @[@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"0"];
        NSArray *chineseNumeralsArray = @[@"一",@"二",@"三",@"四",@"五",@"六",@"七",@"八",@"九",@"零"];
        NSArray *digits = @[@"个",@"十",@"百",@"千",@"万",@"十",@"百",@"千",@"亿",@"十",@"百",@"千",@"兆"];
        NSDictionary *dictionary = [NSDictionary dictionaryWithObjects:chineseNumeralsArray forKeys:arabicNumeralsArray];
        
        if (arabicNum < 20 && arabicNum > 9) {
            if (arabicNum == 10) {
                return @"十";
            }else{
                NSString *subStr1 = [arabicNumStr substringWithRange:NSMakeRange(1, 1)];
                NSString *a1 = [dictionary objectForKey:subStr1];
                NSString *chinese1 = [NSString stringWithFormat:@"十%@",a1];
                return chinese1;
            }
        }else{
            NSMutableArray *sums = [NSMutableArray array];
            for (int i = 0; i < arabicNumStr.length; i ++)
            {
                NSString *substr = [arabicNumStr substringWithRange:NSMakeRange(i, 1)];
                NSString *a = [dictionary objectForKey:substr];
                NSString *b = digits[arabicNumStr.length -i-1];
                NSString *sum = [a stringByAppendingString:b];
    
                if ([a isEqualToString:chineseNumeralsArray[9]])
                {
                    if([b isEqualToString:digits[4]] || [b isEqualToString:digits[8]])
                    {
                        sum = b;
                        if ([[sums lastObject] isEqualToString:chineseNumeralsArray[9]])
                        {
                            [sums removeLastObject];
                        }
                    }else
                    {
                        sum = chineseNumeralsArray[9];
                    }
                    
                    if ([[sums lastObject] isEqualToString:sum])
                    {
                        continue;
                    }
                }
                
                [sums addObject:sum];
    
            }
            NSString *sumStr = [sums  componentsJoinedByString:@""];
            NSString *chinese = [sumStr substringToIndex:sumStr.length-1];
            return chinese;
        }
    }

二.将日期转换成古月份

    - (void)viewDidLoad {
            [super viewDidLoad];
            // Do any additional setup after loading the view, typically from a nib.
            
            // 初始化时间格式控制器
            NSDateFormatter *matter = [[NSDateFormatter alloc] init];
            // 设置设计格式
            [matter setDateFormat:@"MM月dd日"];
            // 进行转换
            NSString *totalStr = [matter stringFromDate:[NSDate date]];
            NSLog(@"今天是%@",totalStr);
        
            //截取月份
            NSString *monStr = [totalStr substringWithRange:NSMakeRange(0, 2)];
            NSLog(@"今天是%@月",monStr);
        
            //截取日号
            NSString *dateStr = [totalStr substringWithRange:NSMakeRange(3, 2)];
            NSLog(@"今天是%@日",dateStr);
            
            NSString *dae = [self translationArabicNum:[monStr integerValue]];
            NSLog(@"%@",dae);
        
        
        
        }
        
        
        - (NSString *)translationArabicNum:(NSInteger)arabicNum
        {
            NSString *arabicNumStr = [NSString stringWithFormat:@"%ld",(long)arabicNum];
            NSArray *arabicNumeralsArray = @[@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",@"11",@"12"];
            NSArray *chineseNumeralsArray = @[@"壹",@"贰",@"叁",@"肆",@"伍",@"陆",@"柒",@"捌",@"玖",@"拾",@"冬",@"腊"];
            NSDictionary *dictionary = [NSDictionary dictionaryWithObjects:chineseNumeralsArray forKeys:arabicNumeralsArray];
            
            NSString *chinese = [dictionary objectForKey:arabicNumStr];
            return chinese;
            
        }