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The author:(作者)delv
published in(发表于) 2014/1/23 3:13:39
使用C#实现阿拉伯数字到大写中文的转换_[Asp.Net教程]

using System;

namespace ConsoleApp

{

///

public class NumFormat

{

public NumFormat()

{

//

// TOD 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

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));

}

}

}

}

来源:CSDN

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