///作者：fanz2000 ///Email:fanz2000@sohu.com /// /// 转换数字金额主函数（包括小数） /// /// 数字字符串 /// 转换成中文大写后的字符串或者出错信息提示字符串 /// <summary> /// 转换数字金额主函数（包括小数） /// </summary> /// <param name="str"></param> /// <returns></returns> public static string ConvertSum(string str) { if (!IsPositveDecimal(str)) return "输入的不是正数字！"; if (Double.Parse(str) > 999999999999.99) return "数字太大，无法换算，请输入一万亿元以下的金额"; char[] ch = new char[1]; ch[0] = '.'; //小数点 string[] splitstr = null; //定义按小数点分割后的字符串数组 splitstr = str.Split(ch[0]);//按小数点分割字符串 if (splitstr.Length == 1) //只有整数部分 return ConvertData(str) + "圆整"; else //有小数部分 { string rstr; rstr = ConvertData(splitstr[0]) + "圆";//转换整数部分 rstr += ConvertXiaoShu(splitstr[1]);//转换小数部分 return rstr; } } /// /// 判断是否是正数字字符串 /// /// 判断字符串 /// 如果是数字，返回true，否则返回false private static bool IsPositveDecimal(string str) { Decimal d; try { d = Decimal.Parse(str); } catch (Exception) { return false; } if (d > 0) return true; else return false; } /// /// 转换数字（整数） /// /// 需要转换的整数数字字符串 /// 转换成中文大写后的字符串 private static string ConvertData(string str) { string tmpstr = ""; string rstr = ""; int strlen = str.Length; if (strlen <= 4)//数字长度小于四位 { rstr = ConvertDigit(str); } else { if (strlen <= 8)//数字长度大于四位，小于八位 { tmpstr = str.Substring(strlen - 4, 4);//先截取最后四位数字 rstr = ConvertDigit(tmpstr);//转换最后四位数字 tmpstr = str.Substring(0, strlen - 4);//截取其余数字 //将两次转换的数字加上万后相连接 rstr = String.Concat(ConvertDigit(tmpstr) + "万", rstr); rstr = rstr.Replace("零万", "万"); rstr = rstr.Replace("零零", "零"); } else if (strlen <= 12)//数字长度大于八位，小于十二位 { tmpstr = str.Substring(strlen - 4, 4);//先截取最后四位数字 rstr = ConvertDigit(tmpstr);//转换最后四位数字 tmpstr = str.Substring(strlen - 8, 4);//再截取四位数字 rstr = String.Concat(ConvertDigit(tmpstr) + "万", rstr); tmpstr = str.Substring(0, strlen - 8); rstr = String.Concat(ConvertDigit(tmpstr) + "亿", rstr); rstr = rstr.Replace("零亿", "亿"); rstr = rstr.Replace("零万", "零"); rstr = rstr.Replace("零零", "零"); rstr = rstr.Replace("零零", "零"); } } strlen = rstr.Length; if (strlen >= 2) { switch (rstr.Substring(strlen - 2, 2)) { case "佰零": rstr = rstr.Substring(0, strlen - 2) + "佰"; break; case "仟零": rstr = rstr.Substring(0, strlen - 2) + "仟"; break; case "万零": rstr = rstr.Substring(0, strlen - 2) + "万"; break; case "亿零": rstr = rstr.Substring(0, strlen - 2) + "亿"; break; } } return rstr; } /// /// 转换数字（小数部分） /// /// 需要转换的小数部分数字字符串 /// 转换成中文大写后的字符串 private static string ConvertXiaoShu(string str) { int strlen = str.Length; string rstr; if (strlen == 1) { rstr = ConvertChinese(str) + "角"; return rstr; } else { string tmpstr = str.Substring(0, 1); rstr = ConvertChinese(tmpstr) + "角"; tmpstr = str.Substring(1, 1); rstr += ConvertChinese(tmpstr) + "分"; rstr = rstr.Replace("零分", ""); rstr = rstr.Replace("零角", ""); return rstr; } } /// /// 转换数字 /// /// 转换的字符串（四位以内） /// private static string ConvertDigit(string str) { int strlen = str.Length; string rstr = ""; switch (strlen) { case 1: rstr = ConvertChinese(str); break; case 2: rstr = Convert2Digit(str); break; case 3: rstr = Convert3Digit(str); break; case 4: rstr = Convert4Digit(str); break; } rstr = rstr.Replace("拾零", "拾"); strlen = rstr.Length; return rstr; } /// /// 转换四位数字 /// private static string Convert4Digit(string str) { string str1 = str.Substring(0, 1); string str2 = str.Substring(1, 1); string str3 = str.Substring(2, 1); string str4 = str.Substring(3, 1); string rstring = ""; rstring += ConvertChinese(str1) + "仟"; rstring += ConvertChinese(str2) + "佰"; rstring += ConvertChinese(str3) + "拾"; rstring += ConvertChinese(str4); rstring = rstring.Replace("零仟", "零"); rstring = rstring.Replace("零佰", "零"); rstring = rstring.Replace("零拾", "零"); rstring = rstring.Replace("零零", "零"); rstring = rstring.Replace("零零", "零"); rstring = rstring.Replace("零零", "零"); return rstring; } /// /// 转换三位数字 /// private static string Convert3Digit(string str) { string str1 = str.Substring(0, 1); string str2 = str.Substring(1, 1); string str3 = str.Substring(2, 1); string rstring = ""; rstring += ConvertChinese(str1) + "佰"; rstring += ConvertChinese(str2) + "拾"; rstring += ConvertChinese(str3); rstring = rstring.Replace("零佰", "零"); rstring = rstring.Replace("零拾", "零"); rstring = rstring.Replace("零零", "零"); rstring = rstring.Replace("零零", "零"); return rstring; } /// /// 转换二位数字 /// private static string Convert2Digit(string str) { string str1 = str.Substring(0, 1); string str2 = str.Substring(1, 1); string rstring = ""; rstring += ConvertChinese(str1) + "拾"; rstring += ConvertChinese(str2); rstring = rstring.Replace("零拾", "零"); rstring = rstring.Replace("零零", "零"); return rstring; } /// /// 将一位数字转换成中文大写数字 /// private static string ConvertChinese(string str) { //"零壹贰叁肆伍陆柒捌玖拾佰仟万亿圆整角分" string cstr = ""; switch (str) { case "0": cstr = "零"; break; case "1": cstr = "壹"; break; case "2": cstr = "贰"; break; case "3": cstr = "叁"; break; case "4": cstr = "肆"; break; case "5": cstr = "伍"; break; case "6": cstr = "陆"; break; case "7": cstr = "柒"; break; case "8": cstr = "捌"; break; case "9": cstr = "玖"; break; } return (cstr); }
