繁体转换简体的程序（c#）

　　 //big5繁体转换简体的程序
public class Big5toGB2312
{
[DllImport("kernel32.dll", EntryPoint = "LCMapStringA")]
public static extern int LCMapString(int Locale, int dwMapFlags, byte[] lpSrcStr, int cchSrc, byte[] lpDestStr, int cchDest);

const int LCMAP_SIMPLIFIED_CHINESE = 0x02000000;
const int LCMAP_TRADITIONAL_CHINESE = 0x04000000;

public static void Main(String[] args)
{
if (args.Length < 1)
{
Console.WriteLine("请指定路径！");
}
String[] files = Directory.GetFiles(args[0]);
if (args.Length == 2)
files = Directory.GetFiles(args[0], args[1]);
String dir = args[0] + "//conv";
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
for (int i = 0; i < files.Length; i++)
{
StreamReader sr = new StreamReader(files[i], Encoding.GetEncoding("big5"));
String lines = sr.ReadToEnd();
sr.Close();
lines = ConvertString(lines);
//Console.WriteLine(lines);
StreamWriter sw = new StreamWriter(dir + "//" + files[i], false, Encoding.GetEncoding("gb2312"));
sw.WriteLine(lines);
sw.Close();
Console.WriteLine("转换 {0} ok!", files[i]);
}
}

public static String ConvertString(String lines)
{
Encoding gb2312 = Encoding.GetEncoding(936);
byte[] src = gb2312.GetBytes(lines);
byte[] dest = new byte[src.Length];
LCMapString(0x0804, LCMAP_SIMPLIFIED_CHINESE, src, -1, dest, src.Length);
return gb2312.GetString(dest);
}

}