將金額使用漢字表示

將金額使用漢字表示

#include <iostream>
#include <sstream>

int main()
{
    double money = 0;
    char* chnNums[] = {"零", "壹", "貳", "叄", "肆", "伍", "陸", "柒", "捌", "玖"};
    char* chnUnits[] = {"億", "仟", "佰", "拾", "萬", "仟", "佰", "拾", ""};

    while (std::cin >> money)
    {
        int intMoney = static_cast<int>((money + 0.005) * 100);
        int integer = intMoney / 100;
        int decimal = intMoney % 100;
        std::stringstream ss{};
        ss << "人民幣";

		bool isLastNumZero = false;
		bool isFirstNumFound = false;
        int unitBase = 1000000000;
		if (integer != 0)
		{
		    for (int i = 0; i < 9; ++i)
		    {
                unitBase /= 10;
		    	if (integer < unitBase)
				{
                    if (!isFirstNumFound) continue;
					if (i == 4) { ss << chnUnits[i]; }
					isLastNumZero = true;
			    }
				else
				{
				    int num = integer / unitBase;
		    	    integer %= unitBase;
				    if (isLastNumZero) { ss << chnNums[0]; }
				    isLastNumZero = false;
				    if (!isFirstNumFound && num == 1 && (i == 3 || i == 7)) { ss << chnUnits[i]; }
		    	    else { ss << chnNums[num] << chnUnits[i]; }	
				}
				isFirstNumFound = true;
		    }
            ss << (decimal == 0 ? "元整" : "元");
		}
        if (decimal != 0)
        {
            if (decimal > 9) ss << chnNums[decimal / 10] << "角";
            decimal %= 10;
		    if (decimal > 0) ss << chnNums[decimal] << "分";
        }
		std::cout << ss.str() << std::endl;
    }
}