将人民币数字转换为中文大写

using System;

namespace Test.Com
{
 /// <summary>
 /// 功能：字符串处理函数集
 /// </summary>
 public class DealString
 {
  #region 私有成员
  /// <summary>
  /// 输入字符串
  /// </summary>
  private string inputString=null;
  /// <summary>
  /// 输出字符串
  /// </summary>
  private string outString=null;
  /// <summary>
  /// 提示信息
  /// </summary>
  private string noteMessage=null;
  #endregion

  #region 公共属性
  /// <summary>
  /// 输入字符串
  /// </summary>
  public string InputString
  {
   get{return inputString;}
   set{inputString=value;}
  }
  /// <summary>
  /// 输出字符串
  /// </summary>
  public string OutString
  {
   get{return outString;}
   set{outString=value;}
  }
  /// <summary>
  /// 提示信息
  /// </summary>
  public string NoteMessage
  {
   get{return noteMessage;}
   set{noteMessage=value;}
  }
  #endregion
  
  #region 构造函数
  public DealString()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //
  }
  #endregion

  #region 公共方法
  public void ConvertToChineseNum()
  {
   string numList="零壹贰叁肆伍陆柒捌玖";
   string rmbList = "分角元拾佰仟万拾佰仟亿拾佰仟万";
   double number=0;
   string tempOutString=null;

   try
   {
    number=double.Parse(this.inputString);
   }
   catch
   {
    this.noteMessage="传入参数非数字！";
    return;
   }
   
   if(number>9999999999999.99)
    this.noteMessage="超出范围的人民币值";

   //将小数转化为整数字符串
   string tempNumberString=Convert.ToInt64(number*100).ToString();
   int tempNmberLength=tempNumberString.Length;
   int i=0;
   while(i<tempNmberLength)
   {
    int oneNumber=Int32.Parse(tempNumberString.Substring(i,1));
    string oneNumberChar=numList.Substring(oneNumber,1);
    string oneNumberUnit=rmbList.Substring(tempNmberLength-i-1,1);
    if(oneNumberChar!="零")
     tempOutString+=oneNumberChar+oneNumberUnit;
    else
    {
     if(oneNumberUnit=="亿"||oneNumberUnit=="万"||oneNumberUnit=="元"||oneNumberUnit=="零")
     {
      while (tempOutString.EndsWith("零"))
      {
       tempOutString=tempOutString.Substring(0,tempOutString.Length-1);
      }

     }
     if(oneNumberUnit=="亿"||(oneNumberUnit=="万"&&!tempOutString.EndsWith("亿"))||oneNumberUnit=="元")
     {
      tempOutString+=oneNumberUnit;
     }
     else
     {
      bool tempEnd=tempOutString.EndsWith("亿");
      bool zeroEnd=tempOutString.EndsWith("零");
      if(tempOutString.Length>1)
      {
       bool zeroStart=tempOutString.Substring(tempOutString.Length-2,2).StartsWith("零");
       if(!zeroEnd&&(zeroStart||!tempEnd))
        tempOutString+=oneNumberChar;
      }
      else
      {
       if(!zeroEnd&&!tempEnd)
        tempOutString+=oneNumberChar;
      }
     }
    }
    i+=1;
   }

   while (tempOutString.EndsWith("零"))
   {
    tempOutString=tempOutString.Substring(0,tempOutString.Length-1);
   }

   while(tempOutString.EndsWith("元"))
   {
    tempOutString=tempOutString+"整";
   }

   this.outString=tempOutString;

   
  }
  #endregion
 }
}