iOS 数字金额转中文

-(NSString *)getChineseMoneyString:(NSString *)numstr{

    double numberals=[numstr doubleValue];
    NSArray *numberchar = @[@"零",@"壹",@"贰",@"叁",@"肆",@"伍",@"陆",@"柒",@"捌",@"玖"];
    NSArray *inunitchar = @[@"",@"拾",@"佰",@"仟"];
    NSArray *unitname = @[@"",@"万",@"亿",@"万亿"];
    //金额乘以100转换成字符串(去除圆角分数值)
    NSString *valstr=[NSString stringWithFormat:@"%.2f",numberals];
    NSString *prefix;
    NSString *suffix;

    if (valstr.length<=2) {
    
        prefix=@"";
        suffix=@"";
    
    }else{
    
        prefix=@"";
    
        suffix=@"";
    
        long flag=valstr.length-2;
    
        NSString *head=[valstr substringToIndex:flag-1];
    
        NSString *foot=[valstr substringFromIndex:flag];
    
        if (head.length>13) {
            return @"数值太大(最大支持13位整数),无法处理";
        }else if ([head isEqualToString:@"0"]) { //处理金额为0时的数字
            if ([foot isEqualToString:@"00"]) {
                return @"";
            }else{
                prefix=@"";
            }
        }else{
            //处理整数部分
            NSMutableArray *ch=[[NSMutableArray alloc]init];
            for (int i = 0; i < head.length; i++) {
                NSString * str=[NSString stringWithFormat:@"%x",[head characterAtIndex:i]-'0'];
                [ch addObject:str];
            }
        
            //记录0的数量
            int zeronum=0;
        
            for (int i=0; i<ch.count; i++) {
            
                int index=(ch.count -i-1)%4;//取段内位置
            
                long indexloc=(ch.count -i-1)/4;//取段位置
            
                if ([[ch objectAtIndex:i]isEqualToString:@"0"]) {
                
                    zeronum++;
                
                }else{
                
                    if (zeronum!=0) {
                    
                        if (index!=3) {
                        
                            prefix=[prefix stringByAppendingString:@"零"];
                        
                        }
                        zeronum=0;
                    }
                
                    prefix=[prefix stringByAppendingString:[numberchar objectAtIndex:[[ch objectAtIndex:i]intValue]]];
                
                    prefix=[prefix stringByAppendingString:[inunitchar objectAtIndex:index]];
                
                }
                if (index ==0 && zeronum<4) {
                
                    prefix=[prefix stringByAppendingString:[unitname objectAtIndex:indexloc]];
                
                }
           }
            prefix =[prefix stringByAppendingString:@"圆"];
        }
    
        //处理小数位
        if ([foot isEqualToString:@"00"]) {
        
            suffix =[suffix stringByAppendingString:@"整"];
        
        }else{
        
            NSString *headch=[NSString stringWithFormat:@"%x",[foot characterAtIndex:0]-'0'];
            NSString *footch=[NSString stringWithFormat:@"%x",[foot characterAtIndex:1]-'0'];
            if ([headch isEqualToString:@"0"]) {
                if (![prefix isEqualToString:@""]) {
                    suffix=@"零";
                }
            }else{
                suffix=[NSString stringWithFormat:@"%@角",[numberchar objectAtIndex:[headch intValue]]];
            }
            if (![footch isEqualToString:@"0"]) {
                suffix=[suffix stringByAppendingString:[NSString stringWithFormat:@"%@分",[numberchar objectAtIndex:[footch intValue]]]];
            }
        
        }
    }
    return [prefix stringByAppendingString:suffix];
}