把金额数据从小写转换为大写

using System;

namespace HaiNuo

{

/*****************************************************************************************

* 类名：DecimalToUpper *

* 功能：把金额数据从小写转换为大写 *

* 限制条件：金额小于一万亿，且少于两位小数 *

* 作者：雷俊强 junqiang_china@163.com *

* 日期：2003-5-6 *

* 用法：DecimalToUpper x = new DecimalToUpper(); *

* this.textBox2.Text = x.ToUpper(d); *

* 欢迎下载、使用 *

* FOR my wife and my son *

*****************************************************************************************/

public class DecimalToUpper

{

public DecimalToUpper()

{

// TODO: 在此处添加构造函数逻辑

}

/// <summary>

/// 小写金额转换为大写金额，其他条件：金额小于一万亿，最多两位小数

/// </summary>

/// <param name="d">源金额，d 《 1000000000000.00(一万亿)，且最多两位小数 </param>

/// <returns>结果，大写金额</returns>

public string ToUpper(decimal d)

{

if (d == 0)

return "零元整";

string je = d.ToString("####.00");

if (je.Length > 15)

return "";

je = new String(\'0\', 15 - je.Length) + je; //若小于15位长，前面补0

string stry = je.Substring(0, 4); //取得\'亿\'单元

string strw = je.Substring(4, 4); //取得\'万\'单元

string strg = je.Substring(8, 4); //取得\'元\'单元

string strf = je.Substring(13, 2); //取得小数部分

string str1 = "", str2 = "", str3 = "";

str1 = this.getupper(stry, "亿"); //亿单元的大写

str2 = this.getupper(strw, "万"); //万单元的大写

str3 = this.getupper(strg, "元"); //元单元的大写

string str_y = "", str_w = "";

if (je[3] == \'0\' || je[4] == \'0\') //亿和万之间是否有0

str_y = "零";

if (je[7] == \'0\' || je[8] == \'0\') //万和元之间是否有0

str_w = "零";

string ret = str1 + str_y + str2 + str_w + str3; //亿，万，元的三个大写合并

for (int i = 0; i < ret.Length; i++) //去掉前面的"零"

{

if (ret[i] != \'零\')

{

ret = ret.Substring(i);

break;

}

for (int i = ret.Length - 1; i > -1; i--) //去掉最后的"零"

{

if (ret[i] != \'零\')

{

ret = ret.Substring(0, i + 1);

break;

}

if (ret[ret.Length - 1] != \'元\') //若最后不位不是\'元\'，则加一个\'元\'字

ret = ret + "元";

if (ret == "零零元") //若为零元，则去掉"元数"，结果只要小数部分

ret = "";

if (strf == "00") //下面是小数部分的转换

{

ret = ret + "整";

}

else

{

string tmp = "";

tmp = this.getint(strf[0]);

if (tmp == "零")

ret = ret + tmp;

else

ret = ret + tmp + "角";

tmp = this.getint(strf[1]);

if (tmp == "零")

ret = ret + "整";

else

ret = ret + tmp + "分";

}

if (ret[0] == \'零\')

{

ret = ret.Substring(1); //防止0.03转为"零叁分"，而直接转为"叁分"

}

return ret; //完成，返回

}

/// <summary>

/// 把一个单元转为大写，如亿单元，万单元，个单元

/// </summary>

/// <param name="str">这个单元的小写数字（4位长，若不足，则前面补零）</param>

/// <param name="strDW">亿，万，元</param>

/// <returns>转换结果</returns>

private string getupper(string str, string strDW)

{

if (str == "0000")

return "";

string ret = "";

string tmp1 = this.getint(str[0]);

string tmp2 = this.getint(str[1]);

string tmp3 = this.getint(str[2]);

string tmp4 = this.getint(str[3]);

if (tmp1 != "零")

{

ret = ret + tmp1 + "仟";

}

else

{

ret = ret + tmp1;

}

if (tmp2 != "零")

{

ret = ret + tmp2 + "佰";

}

else

{

if (tmp1 != "零") //保证若有两个零\'00\'，结果只有一个零，下同

ret = ret + tmp2;

}

if (tmp3 != "零")

{

ret = ret + tmp3 + "拾";

}

else

{

if (tmp2 != "零")

ret = ret + tmp3;

}

if (tmp4 != "零")

{

ret = ret + tmp4;

}

if (ret[0] == \'零\') //若第一个字符是\'零\'，则去掉

ret = ret.Substring(1);

if (ret[ret.Length - 1] == \'零\') //若最后一个字符是\'零\'，则去掉

ret = ret.Substring(0, ret.Length - 1);

return ret + strDW; //加上本单元的单位

}

/// <summary>

/// 单个数字转为大写

/// </summary>

/// <param name="c">小写阿拉伯数字 0---9</param>

/// <returns>大写数字</returns>

private string getint(char c)

{

string str = "";

switch (c)

{

case \'0\':

str = "零";

break;

case \'1\':

str = "壹";

break;

case \'2\':

str = "贰";

break;

case \'3\':

str = "叁";

break;

case \'4\':

str = "肆";

break;

case \'5\':

str = "伍";

break;

case \'6\':

str = "陆";

break;

case \'7\':

str = "柒";

break;

case \'8\':

str = "拐";

break;

case \'9\':

str = "玖";

break;

}

return str;

}

调用方法例：

protected void Page_Load(object sender, EventArgs e)

{

decimal aaa = 132345336782.2m;

HaiNuo.DecimalToUpper aa = new HaiNuo.DecimalToUpper();

Response.Write(aa.ToUpper(aaa));

}