使用C#实现阿拉伯数字到大写中文的转换
投稿：mdxy-dxy
这篇文章主要介绍了C#实现阿拉伯数字转为大写中文的实现代码，需要的朋友可以参考下
先记下来,以备后用!
/// <summary>
/// 金额转为大写金额
/// </summary>
public class MoneyConvertChinese
{
/// <summary>
/// 金额转为大写金额
/// </summary>
/// <param name="LowerMoney"></param>
/// <returns></returns>
public string MoneyToChinese(string LowerMoney)
{
string functionReturnValue = null;
bool IsNegative = false; // 是否是负数
if (LowerMoney.Trim().Substring(0, 1) == "-")
{
// 是负数则先转为正数
LowerMoney = LowerMoney.Trim().Remove(0, 1);
IsNegative = true;
}
string strLower = null;
string strUpart = null;
string strUpper = null;
int iTemp = 0;
// 保留两位小数 123.489→123.49 123.4→123.4
LowerMoney = Math.Round(double.Parse(LowerMoney), 2).ToString();
if (LowerMoney.IndexOf(".") > 0)
{
if (LowerMoney.IndexOf(".") == LowerMoney.Length - 2)
{
LowerMoney = LowerMoney + "0";
}
}
else
{
LowerMoney = LowerMoney + ".00";
}
strLower = LowerMoney;
iTemp = 1;
strUpper = "";
while (iTemp <= strLower.Length)
{
switch (strLower.Substring(strLower.Length - iTemp, 1))
{
case ".":
strUpart = "圆";
break;
case "0":
strUpart = "零";
break;
case "1":
strUpart = "壹";
break;
case "2":
strUpart = "贰";
break;
case "3":
strUpart = "叁";
break;
case "4":
strUpart = "肆";
break;
case "5":
strUpart = "伍";
break;
case "6":
strUpart = "陆";
break;
case "7":
strUpart = "柒";
break;
case "8":
strUpart = "捌";
break;
case "9":
strUpart = "玖";
break;
}
switch (iTemp)
{
case 1:
strUpart = strUpart + "分";
break;
case 2:
strUpart = strUpart + "角";
break;
case 3:
strUpart = strUpart + "";
break;
case 4:
strUpart = strUpart + "";
break;
case 5:
strUpart = strUpart + "拾";
break;
case 6:
strUpart = strUpart + "佰";
break;
case 7:
strUpart = strUpart + "仟";
break;
case 8:
strUpart = strUpart + "万";
break;
case 9:
strUpart = strUpart + "拾";
break;
case 10:
strUpart = strUpart + "佰";
break;
case 11:
strUpart = strUpart + "仟";
break;
case 12:
strUpart = strUpart + "亿";
break;
case 13:
strUpart = strUpart + "拾";
break;
case 14:
strUpart = strUpart + "佰";
break;
case 15:
strUpart = strUpart + "仟";
break;
case 16:
strUpart = strUpart + "万";
break;
default:
strUpart = strUpart + "";
break;
}
strUpper = strUpart + strUpper;
iTemp = iTemp + 1;
}
strUpper = strUpper.Replace("零拾", "零");
strUpper = strUpper.Replace("零佰", "零");
strUpper = strUpper.Replace("零仟", "零");
strUpper = strUpper.Replace("零零零", "零");
strUpper = strUpper.Replace("零零", "零");
strUpper = strUpper.Replace("零角零分", "整");
strUpper = strUpper.Replace("零分", "整");
strUpper = strUpper.Replace("零角", "零");
strUpper = strUpper.Replace("零亿零万零圆", "亿圆");
strUpper = strUpper.Replace("亿零万零圆", "亿圆");
strUpper = strUpper.Replace("零亿零万", "亿");
strUpper = strUpper.Replace("零万零圆", "万圆");
strUpper = strUpper.Replace("零亿", "亿");
strUpper = strUpper.Replace("零万", "万");
strUpper = strUpper.Replace("零圆", "圆");
strUpper = strUpper.Replace("零零", "零");
// 对壹圆以下的金额的处理
if (strUpper.Substring(0, 1) == "圆")
{
strUpper = strUpper.Substring(1, strUpper.Length - 1);
}
if (strUpper.Substring(0, 1) == "零")
{
strUpper = strUpper.Substring(1, strUpper.Length - 1);
}
if (strUpper.Substring(0, 1) == "角")
{
strUpper = strUpper.Substring(1, strUpper.Length - 1);
}
if (strUpper.Substring(0, 1) == "分")
{
strUpper = strUpper.Substring(1, strUpper.Length - 1);
}
if (strUpper.Substring(0, 1) == "整")
{
strUpper = "零圆整";
}
functionReturnValue = strUpper;
if (IsNegative == true)
{
return "负" + functionReturnValue;
}
else
{
return functionReturnValue;
}
}
}
测试代码：
static void Main(string[] args)
{
Console.Write("请输入要转成大写的数字：");
string str = Console.ReadLine();
Console.WriteLine("大写：" + new MoneyConvertChinese().MoneyToChinese(str));
Console.ReadLine();
}
测试结果：
下面是其它网友的补充：
using System;
namespace ConsoleApp
{
/// <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
/// </summary>
public class NumFormat
{
public NumFormat()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
// 转换数字
private char ToNum(char x)
{
string strChnNames="零一二三四五六七八九";
string strNumNames="0123456789";
return strChnNames[strNumNames.IndexOf(x)];
}
// 转换万以下整数
private string ChangeInt(string x)
{
string[] strArrayLevelNames=new string[4] {"","十","百","千"};
string ret = "";
int i;
for (i=x.Length-1;i>=0;i--)
if (x[i] == '0')
ret = ToNum(x[i]) + ret;
else
ret = ToNum(x[i]) + strArrayLevelNames[x.Length-1-i] + ret;
while ((i=ret.IndexOf("零零"))!=-1)
ret=ret.Remove(i, 1);
if (ret[ret.Length-1]=='零' && ret.Length>1)
ret=ret.Remove(ret.Length-1,1);
if (ret.Length>=2 && ret.Substring(0,2)=="一十")
ret=ret.Remove(0,1);
return ret;
}
// 转换整数
private string ToInt(string x)
{
int len = x.Length;
string ret,temp;
if (len<=4)
ret = ChangeInt(x);
else if (len<=8)
{
ret = ChangeInt(x.Substring(0,len-4)) + "万";
temp = ChangeInt(x.Substring(len-4,4));
if (temp.IndexOf("千")==-1 && temp!="")
ret += "零" + temp;
else
ret += temp;
}
else
{
ret=ChangeInt(x.Substring(0,len-8)) + "亿";
temp=ChangeInt(x.Substring(len-8,4));
if (temp.IndexOf("千")==-1 && temp!="")
ret += "零" + temp;
else
ret += temp;
ret += "万";
temp = ChangeInt(x.Substring(len-4,4));
if (temp.IndexOf("千")==-1 && temp!="")
ret += "零" + temp;
else
ret += temp;
}
int i;
if ((i=ret.IndexOf("零万"))!=-1)
ret = ret.Remove(i+1,1);
while ((i=ret.IndexOf("零零"))!=-1)
ret = ret.Remove(i,1);
if (ret[ret.Length-1]=='零' && ret.Length>1)
ret = ret.Remove(ret.Length-1,1);
return ret;
}
private string ToDecimal(string x)
{
string ret="";
for (int i=0;i<x.Length;i++)
ret += ToNum(x[i]);
return ret;
}
public string NumToChn(string x)
{
if (x.Length==0)
return "";
string ret="";
if (x[0]=='-')
{
ret="负";
x=x.Remove(0,1);
}
if (x[0].ToString()==".")
x="0"+x;
if (x[x.Length-1].ToString()==".")
x=x.Remove(x.Length-1,1);
if (x.IndexOf(".")>-1)
ret += ToInt(x.Substring(0,x.IndexOf(".")))+"点"+ToDecimal(x.Substring(x.IndexOf(".")+1));
else
ret += ToInt(x);
return ret;
}
}
}
测试工程
using System;
namespace ConsoleApp
{
class MainClass
{
static void Main(string[] args)
{
/*
System.Console.WriteLine("Hello, The World!");
System.Console.WriteLine("My Love!");
ClassTest ct = new ClassTest();
System.Console.WriteLine(ct.Get_Str());
*/
/*
// 重载运算符
MyVector v1 = new MyVector(5, 12);
MyVector v2 = new MyVector(4, 3);
MyVector v3 = new MyVector();
v3 = v1 + v2;
System.Console.WriteLine("{0}测试一下", v3.Length);
*/
// 转换成大写数字
NumFormat nf = new NumFormat();
string x;
while (true)
{
Console.Write("X=");
x = Console.ReadLine();
if (x == "") break;
Console.WriteLine("{0}={1}", x, nf.NumToChn(x));
}
}
}
}