数字中文转换类

using System;

namespace Numeric
 {
     #region 货币中文转换类
    /// <summary>
     /// 本类实现阿拉伯数字到大写中文的转换
    /// 该类没有对非法数字进行判别
    /// 请调用NumToChn方法
    /// 作者：menway
     /// </summary>
     public class NumericUpperConverter
     {
         #region 构造器
        /// <summary>
         /// 构造器
        /// </summary>
         public MoneyConverter()
         {
             //
             // TODO: Add constructor logic here
             //
         }
         #endregion

        #region 转换数字
        /// <summary>
         /// 转换数字
        /// </summary>
         /// <param name="x"></param>
         /// <returns></returns>
         private char ConvertNumeric(char p_chrValue)
         {
             string stringChnNames = "零一二三四五六七八九";
             string stringNumNames = "0123456789";
             return stringChnNames[stringNumNames.IndexOf(p_chrValue)];
         }
         #endregion

        #region 转换万以下的整数
        /// <summary>
         /// 转换万以下的整数
        /// </summary>
         /// <param name="x"></param>
         /// <returns></returns>
         private string ConvertIntegerBelowThousand(string p_strValue)
         {
             string[] stringArrayLevelNames = new string[4] { "", "十", "百", "千" };
             string strResult = string.Empty;
             int i1 = 0;
             for (i1 = p_strValue.Length - 1; i1 >= 0; i1--)
             {
                 if (p_strValue[i1] == '0')
                 {
                     strResult = ConvertNumeric(p_strValue[i1]) + strResult;
                 }
                 else
                 {
                     strResult = ConvertNumeric(p_strValue[i1]) + stringArrayLevelNames[p_strValue.Length - 1 - i1] + strResult;
                 }
             }
             while ((i1 = strResult.IndexOf("零零")) != -1)
             {
                 strResult = strResult.Remove(i1, 1);
             }
             if (strResult[strResult.Length - 1] == '零' && strResult.Length > 1)
             {
                 strResult = strResult.Remove(strResult.Length - 1, 1);
             }
             if (strResult.Length >= 2 && strResult.Substring(0, 2) == "一十")
             {
                 strResult = strResult.Remove(0, 1);
             }
             return strResult;
         }
         #endregion

        #region 转换整数
        /// <summary>
         /// 转换整数
        /// </summary>
         /// <param name="x"></param>
         /// <returns></returns>
         private string ConvertInteger(string p_strValue)
         {
             int intLength = p_strValue.Length;
             string strResult = string.Empty;
             string strTemp = string.Empty;
             if (intLength <= 4)
             {
                 strResult = ConvertIntegerBelowThousand(p_strValue);
             }
             else if (intLength <= 8)
             {
                 strResult = ConvertIntegerBelowThousand(p_strValue.Substring(0, intLength - 4)) + "万";
                 strTemp = ConvertIntegerBelowThousand(p_strValue.Substring(intLength - 4, 4));
                 if (strTemp.IndexOf("千") == -1 && strTemp != string.Empty)
                 {
                     strResult += "零" + strTemp;
                 }
                 else
                 {
                     strResult += strTemp;
                 }
             }
             else
             {
                 strResult = ConvertIntegerBelowThousand(p_strValue.Substring(0, intLength - 8)) + "亿";
                 strTemp = ConvertIntegerBelowThousand(p_strValue.Substring(intLength - 8, 4));
                 if (strTemp.IndexOf("千") == -1 && strTemp != "")
                 {
                     strResult += "零" + strTemp;
                 }
                 else
                 {
                     strResult += strTemp;
                 }
                 strResult += "万";
                 strTemp = ConvertIntegerBelowThousand(p_strValue.Substring(intLength - 4, 4));
                 if (strTemp.IndexOf("千") == -1 && strTemp != "")
                 {
                     strResult += "零" + strTemp;
                 }
                 else
                 {
                     strResult += strTemp;
                 }
             }
             int i1 = 0;
             if ((i1 = strResult.IndexOf("零万")) != -1)
             {
                 strResult = strResult.Remove(i1 + 1, 1);
             }
             while ((i1 = strResult.IndexOf("零零")) != -1)
             {
                 strResult = strResult.Remove(i1, 1);
             }
             if (strResult[strResult.Length - 1] == '零' && strResult.Length > 1)
             {
                 strResult = strResult.Remove(strResult.Length - 1, 1);
             }
             return strResult;
         }
         #endregion

        #region 转换小数
        /// <summary>
         /// 转换小数
        /// </summary>
         /// <param name="x"></param>
         /// <returns></returns>
         private string ConvertDecimal(string p_strValue)
         {
             string strResult = string.Empty;
             for (int i = 0; i < p_strValue.Length; i++)
             {
                 strResult += ConvertNumeric(p_strValue[i]);
             }
             return strResult;
         }
         #endregion

        #region 数字转换成中文
        /// <summary>
         /// 数字转换成中文
        /// </summary>
         /// <param name="x"></param>
         /// <returns></returns>
         public static string ConvertToChinese(string p_strValue)
         {
             string strResult = string.Empty;
             if (p_strValue.Length == 0)
             {
                 return strResult;
             }
             
             if (p_strValue[0] == '-')
             {
                 strResult = "负";
                 p_strValue = p_strValue.Remove(0, 1);
             }
             if (p_strValue[0].ToString() == ".")
             {
                 p_strValue = "0" + p_strValue;
             }
             if (p_strValue[p_strValue.Length - 1].ToString() == ".")
             {
                 p_strValue = p_strValue.Remove(p_strValue.Length - 1, 1);
             }

            MoneyConverter objConverter = new MoneyConverter();
             if (p_strValue.IndexOf(".") > -1)
             {
                 strResult += objConverter.ConvertInteger(p_strValue.Substring(0, p_strValue.IndexOf("."))) + "点" + objConverter.ConvertDecimal(p_strValue.Substring(p_strValue.IndexOf(".") + 1));
             }
             else
             {
                 strResult += objConverter.ConvertInteger(p_strValue);
             }
             objConverter = null;
             return strResult;
         }
         #endregion
     }
     #endregion
 }