C++ 的string 与java的String中的汉字长度

public class Example
{
    public Example(double x)
    {
        String yuan="亿千百拾万千百十元角分";
        String digit="零壹贰叁肆伍陆柒捌玖";
        String str="";
        int y=(int)Math.round(x*100-0.5);//123414
        int i=yuan.length()-1;
        while(y>0&&i>0)
        {
            str=""+digit.charAt(y%10)+yuan.charAt(i)+str;
            i--;
            y=y/10;
        }
        System.out.println(str); //壹千贰百叁十肆元壹角肆分
    }
    public static void main(String[] args)
    {
        new Example(1234.14);
    }
}

#include "stdafx.h"
#include <iostream>
#include <cstring>
#include <string>
#include <algorithm>
#include <vector>
using namespace std;
class Money
    {
    public:
        string M(string original)
            {
        static string yuan="亿千百拾万千百十元角分";
        static string digit="零壹贰叁肆伍陆柒捌玖";
    long double b;
    b=strtod(&original[0],NULL);
    int n=int(100*b);//123414

    int v=0;
    int i=yuan.length()-1;//21
    string str="";
                while(i>0&&n>0)
                    {
                    v=n%10;
                    str=yuan[i]+str;
                    str=yuan[i-1]+str;

                    str=digit[2*v+1]+str;
                    str=digit[2*v]+str;


                    i=i-2;
                    n=n/10;
                    }
            return str;
            };
    };

int _tmain(int argc, _TCHAR* argv[])
{
    Money T;
    cout<<T.M("1234.14");
    return 0;
}