/// <summary>
/// 通过数字求金额的大写
/// decimal p=123758.21m;
/// Response.Write (new CommonFunction().ToUpper(p));
/// </summary>
/// <param name= "d "> </param>
/// <returns> </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].ToString() == "0" || je[4].ToString() == "0") //亿和万之间是否有0
str_y = "零";
if (je[7].ToString() == "0" || je[8].ToString() == "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 "
