c#实现人民币大小写转换的代码
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Utility { /// <summary> ///金钱转换成大写 DBA群: 225982985 /// </summary> public class ConvertMoney { public ConvertMoney() { // //TODO: 在此处添加构造函数逻辑 // } /// <summary> /// 把数字转换成对应的大写钱数 /// </summary> /// <param name="strDigital">要转换的数字</param> /// <returns>转换结果</returns> public string ConvertSumToCap(string strDigital) { decimal dshuzi; string ret = ""; dshuzi = decimal.Parse(strDigital); if (dshuzi == 0) { ret = "零元整"; return ret; } string je = dshuzi.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"; 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; } } }