最近项目中需要前端对金额字符串进行处理，百度了未找到OC版本的。所以自己写了一个小算法，经过测试没出现啥问题。直接上代码。

-(NSString *)toCapitalLetters:(NSString *)money{    //首先转化成标准格式        “200.23”    NSMutableString *tempStr=[[NSMutableString alloc] initWithString:[NSString stringWithFormat:@"%.2f",[money doubleValue]]];    //位    NSArray *carryArr1=@[@"元", @"拾", @"佰", @"仟", @"万", @"拾", @"佰", @"仟", @"亿", @"拾", @"佰", @"仟", @"兆", @"拾", @"佰", @"仟" ];    NSArray *carryArr2=@[@"分",@"角"];    //数字    NSArray *numArr=@[@"零", @"壹", @"贰", @"叁", @"肆", @"伍", @"陆", @"柒", @"捌", @"玖"];    NSArray *temarr = [tempStr componentsSeparatedByString:@"."];    //小数点前的数值字符串    NSString *firstStr=[NSString stringWithFormat:@"%@",temarr[0]];    //小数点后的数值字符串    NSString *secondStr=[NSString stringWithFormat:@"%@",temarr[1]];    //是否拼接了“零”，做标记    bool zero=NO;    //拼接数据的可变字符串    NSMutableString *endStr=[[NSMutableString alloc] init];    /**    *  首先遍历firstStr，从最高位往个位遍历    高位----->个位    */    for(int i=(int)firstStr.length;i>0;i--)    {        //取最高位数        NSInteger MyData=[[firstStr substringWithRange:NSMakeRange(firstStr.length-i, 1)] integerValue];        if ([numArr[MyData] isEqualToString:@"零"]) {            if ([carryArr1[i-1] isEqualToString:@"万"]||[carryArr1[i-1] isEqualToString:@"亿"]||[carryArr1[i-1] isEqualToString:@"元"]||[carryArr1[i-1] isEqualToString:@"兆"]) {                //去除有“零万”                if (zero) {                    endStr =[NSMutableString stringWithFormat:@"%@",[endStr substringToIndex:(endStr.length-1)]];                    [endStr appendString:carryArr1[i-1]];                    zero=NO;                }else{                    [endStr appendString:carryArr1[i-1]];                    zero=NO;                }                //去除有“亿万”、"兆万"的情况                if ([carryArr1[i-1] isEqualToString:@"万"]) {                    if ([[endStr substringWithRange:NSMakeRange(endStr.length-2, 1)] isEqualToString:@"亿"]) {                        endStr =[NSMutableString stringWithFormat:@"%@",[endStr substringToIndex:endStr.length-1]];                    }                    if ([[endStr substringWithRange:NSMakeRange(endStr.length-2, 1)] isEqualToString:@"兆"]) {                        endStr =[NSMutableString stringWithFormat:@"%@",[endStr substringToIndex:endStr.length-1]];                    }                }                //去除“兆亿”                if ([carryArr1[i-1] isEqualToString:@"亿"]) {                    if ([[endStr substringWithRange:NSMakeRange(endStr.length-2, 1)] isEqualToString:@"兆"]) {                        endStr =[NSMutableString stringWithFormat:@"%@",[endStr substringToIndex:endStr.length-1]];                    }                }            }else{                if (!zero) {                    [endStr appendString:numArr[MyData]];                    zero=YES;                }            }        }else{            //拼接数字            [endStr appendString:numArr[MyData]];            //拼接位            [endStr appendString:carryArr1[i-1]];            //不为“零”            zero=NO;        }    }    /**    *  再遍历secondStr    角位----->分位    */    if ([secondStr isEqualToString:@"00"]) {        [endStr appendString:@"整"];    }else{        for(int i=(int)secondStr.length;i>0;i--)        {            //取最高位数            NSInteger MyData=[[secondStr substringWithRange:NSMakeRange(secondStr.length-i, 1)] integerValue];            [endStr appendString:numArr[MyData]];            [endStr appendString:carryArr2[i-1]];        }    }    return endStr;}

(不要望了，一个方法，没有链接)