字符串和字节数组转换

using System;
using System.Collections.Generic;
using System.Text;

namespace NET.MST.Fourth.StringByte
{
class StringByte
{
static void Main(string[] args)
{
String s = "我是字符串,I am string";

//字节数组转换到字符串
Byte[] utf8 = StringToByte(s,
Encoding.UTF8);
Byte[] gb2312 = StringToByte(s,
Encoding.GetEncoding("GB2312"));
Byte[] unicode = StringToByte(s,
Encoding.Unicode);
Console.WriteLine(utf8.Length);
Console.WriteLine(gb2312.Length);
Console.WriteLine(unicode.Length);

//转换回字符串
Console.WriteLine(ByteToString(utf8,
Encoding.UTF8));
Console.WriteLine(ByteToString(gb2312,
Encoding.GetEncoding("GB2312")));
Console.WriteLine(ByteToString(unicode,
Encoding.Unicode));
Console.Read();
}
static Byte[] StringToByte(String s, Encoding encoding)
{
return encoding.GetBytes(s);
}
static String ByteToString(Byte[] b, Encoding encoding)
{
return encoding.GetString(b);
}
}
}

from:http://www.cnblogs.com/brainmao/archive/2011/05/29/2062385.html