爱华网项目中需要对汉字使用区位码进行转化，写了一个类，分享如下：
测试数据：
比如“布”
查出来的是1828
18－－－0x12 -----0x12+0xa0 = 0xB2
28 ---- 0x1c + 0xA0 ------0xBC
所以“布”的区位码是B2Bc
字符串：张三的区位码转化以后是D5C5C8FD
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
{
public classCharacterAreaCodingConvertHelper
{
/// <summary>
/// 汉字转区位码
/// </summary>
/// <paramname="character"></param>
///<returns></returns>
public static string CharacterToCoding(string character)
{
string coding = string.Empty;
for (int i = 0; i < character.Length; i++)
{
byte[] bytes =System.Text.Encoding.GetEncoding("GB2312").GetBytes(character.Substring(i,1));
string lowCode = System.Convert.ToString(bytes[0], 16);//取出低字节编码内容（两位16进制）
if (lowCode.Length == 1)
lowCode = "0" + lowCode;
string hightCode = System.Convert.ToString(bytes[1],16);//取出高字节编码内容（两位16进制）
if (hightCode.Length == 1)
hightCode = "0" + hightCode;
coding += (lowCode + hightCode);//加入到字符串中,
}
return coding;
}
/// <summary>
/// 区位码取汉字
/// </summary>
/// <paramname="coding"></param>
///<returns></returns>
public static string CodingToCharacter(string coding)
{
string characters = string.Empty;
if (coding.Length % 4 != 0)//编码为16进制,必须为4的倍数。
{
throw new System.Exception("编码格式不正确");
}
for (int i = 0; i < coding.Length / 4; i++)
{
byte[] bytes = new byte[2];
int j = i * 4;
string lowCode = coding.Substring(j, 2); //取出低字节,并以16进制进制转换
bytes[0] = System.Convert.ToByte(lowCode, 16);
string highCode = coding.Substring(j + 2, 2);//取出高字节,并以16进制进行转换
bytes[1] = System.Convert.ToByte(highCode, 16);
string character =System.Text.Encoding.GetEncoding("GB2312").GetString(bytes);
characters += character;
}
return characters;
}
}
}
