OC - 对大写数字转换成罗马数字

//将中文(如'三百二十一')转化成数字(321)

+ (NSString*)convertChineseToNumber:(NSString*)chineseString {

NSDictionary*chineseNumberDict =@{@"零":@(0),@"一":@(1),@"二":@(2),@"两":@(2),@"三":@(3),@"四":@(4),

@"五":@(5),@"六":@(6),@"七":@(7),@"八":@(8),@"九":@(9),

@"十":@(10),@"百":@(100),@"千":@(1000),@"万":@(10000),@"亿":@(100000000)};

if(chineseString.length==0) {

returnnil;

}

NSString*resultString =nil;

if(chineseString.length>0) {

longtotal =0;

intr =1;

for(inti=(int)(chineseString.length-1); i>=0; i--) {

NSString*key = [chineseStringsubstringWithRange:NSMakeRange(i,1)];

intval = [chineseNumberDict[key]intValue];

if(val >=10&&0== i) {

if(val > r) {

r = val;

total += val;

}

else{

r *= val;

}

}

elseif(val >=10) {

if(val > r) {

r = val;

}

else{

r = r * val;

}

}

else{

total = total +r * val;

}

}

resultString = [NSStringstringWithFormat:@"%ld", total];

}

returnresultString;

}