金額數字到中文大寫的轉換--C++代碼

這是以前做的一個打印的小東西，需要用到金額轉換。

在網上搜到做金額轉換的很多都是VB或者JavaScript的代碼，基本上都是利用的字符串替換。感覺用stack先push進去再pop出來好像更容易理解。

轉換前：

轉換後：

 

測試程序：

 

// MoneyConverterTst.cpp : Defines the entry point for the console application.

//

#include "stdafx.h"

#include "MoneyConverter.h"

#include <iostream>

int main(int argc, char* argv[])

{

         MoneyConverter converter;

         tstring money=_T("123400123.19");

         cout<<converter.DigitalStr2Chinese(money)<<endl;

         return 0;

}

---

測試程序輸出結果：

MoneyConverter的源代碼：

 // MoneyConverter.h: interface for the MoneyConverter class.

 //

 #if !defined(AFX_MONEYCONVERTER_H__AA9A99D8_5205_4BF1_89DE_5E9718A39887__INCLUDED_)

 #define AFX_MONEYCONVERTER_H__AA9A99D8_5205_4BF1_89DE_5E9718A39887__INCLUDED_

 #if _MSC_VER > 1000

 #pragma once

 #endif // _MSC_VER > 1000

 #include <string>

 #include <stack>

 #include <tchar.h>

 typedef  std::basic_string<TCHAR> tstring;

 using namespace std;

 class MoneyConverter  

 {

 public:

         MoneyConverter();

         virtual ~MoneyConverter();

         tstring DigitalStr2Chinese(tstring& str);

 protected:

         //是否合法數字字符串

         bool IsDigitString(tstring& str);

         //轉換整數部分

         tstring ConvertIntergerPart(tstring& str);

         //轉換小數部分

         tstring ConvertFractionalPart(tstring& str);

 private:

         TCHAR* unit1[4];        

         TCHAR* unit2[3];

         TCHAR* unit3[2];

         TCHAR* digital[10];

 };

 #endif // !defined(AFX_MONEYCONVERTER_H__AA9A99D8_5205_4BF1_89DE_5E9718A39887__INCLUDED_)

---

 // MoneyConverter.cpp: implementation of the MoneyConverter class.
 //
 
 #include "stdafx.h"
 #include "MoneyConverter.h"
 
 // Construction/Destruction
 MoneyConverter::MoneyConverter()
 {
         unit1[0]=_T("");unit1[1]=_T("拾");unit1[2]=_T("佰");unit1[3]=_T("仟");
         unit2[0]=_T("");unit2[1]=_T("萬");unit2[2]=_T("億");
         unit3[0]=_T("角");unit3[1]=_T("分");
         digital[0]=_T("零");digital[1]=_T("壹");digital[2]=_T("貳");digital[3]=_T("叄");
         digital[4]=_T("肆");digital[5]=_T("伍");digital[6]=_T("陸");digital[7]=_T("柒");
         digital[8]=_T("捌");digital[9]=_T("玖");
 }
 
 MoneyConverter::~MoneyConverter()
 {
 }
 
 tstring MoneyConverter::DigitalStr2Chinese(tstring& str)
 {
         if(!IsDigitString(str))
                 return _T("not valid digital string!");
 
         int pos=str.find_first_of('.');
         tstring str1=str.substr(0,pos);
         tstring str2;
         if(pos > 0)
                 str2=str.substr(pos+1,str.rfind('.'));
 
         return ConvertIntergerPart(str1)+ConvertFractionalPart(str2);
 }
 
 tstring MoneyConverter::ConvertIntergerPart(tstring& str)
 {
         std::stack<TCHAR*>      s;
         int     index1, index2, pos;
         index1 = index2 = pos = 0;
         s.empty();
         tstring::reverse_iterator it;//從低位開始
         for(it=str.rbegin();it!=str.rend();it++)//入棧
         {
                 if(index2>0 && index1==0)
                         s.push(unit2[index2]);
                 if(*it != '0')
                         s.push(unit1[index1]);
                 //個位上的零不寫，連續的零隻寫一個
                 if(!(*it=='0' && (index1==0 || *(it-1)=='0' )))
                         s.push(digital[*it-'0']);
                 //
                 pos++;
                 index1=pos%4;//每四位一組
                 index2=(pos/4)%3;//
                 //
                 if(pos>8 && index2==0)//大於千萬
                         index2++;
         }
         //
         tstring result;
         while(!s.empty())//出棧
         {
                 tstring c=s.top();
                 if(!c.empty())
                         result.append(c);
                 s.pop();
         }
         result.append(_T("圓"));
         
         return result;
 }
 
 tstring MoneyConverter::ConvertFractionalPart(tstring& str)
 {
         tstring sJiao,sFen,result;
         if(str.length()==1)
                 sJiao=str.substr(0,1);
         if(str.length() > 1)
                 sFen=str.substr(1,1);
         
         if(sJiao==_T("0")) sJiao=_T("");
         if(sFen==_T("0")) sFen=_T("");
 
         if(sJiao.empty() && sFen.empty()){
                 result=_T("整");
         }
         else if(!sJiao.empty() && sFen.empty()){
                 result=tstring(digital[atoi(sJiao.c_str())])+_T("角");
         }
         else if(sJiao.empty() && !sFen.empty()){
                 result=tstring(_T("零"))+tstring(digital[atoi(sFen.c_str())])+_T("分");
         }
         else{
                 result=tstring(digital[atoi(sJiao.c_str())])+tstring(_T("角"))+
                         tstring(digital[atoi(sFen.c_str())])+_T("分");
         }
 
         return result;
 }
 
 bool MoneyConverter::IsDigitString(tstring& str)
 {       
         if (str.size() == 0) 
                 return false;
         
         std::string::size_type index = 0;
         bool sawdot = false;
         if((str[0] == '-') || (str[0] == '+'))
                 index++;
         for( ; index < str.size(); index++)
         {
                 if (str[index] == '.')
                 {
                         if (sawdot)
                                 return false;
                         else sawdot = true;
                 }
                 else if (!isdigit(str[index]))
                         return false;
         }
         return true;
}