判斷某路徑底下Big5編碼類型檔案轉成UTF8

TransBig5ToUtf8.cs

static void Main(string[] args)
{
    // 取得要搜尋的根目錄
    string path = ConfigurationManager.AppSettings["directory"];
    var files = new DirectoryInfo(path).GetFiles("*.cs", SearchOption.AllDirectories);
    foreach (var file in files)
    {
        if (file.Name.StartsWith("Tempo"))
        {
            Console.WriteLine("暫存檔不處理!  ");
            continue;
        }

        // 檢查檔案是否為Big5，若是則以big5編碼將檔案內容讀入後，再以UTF-8回存
        if (IsBig5Encoding(file.FullName))
        {
            Console.WriteLine(string.Format("發現big5檔案:{0} ", file.FullName));
            Console.Write("開始轉換..  ");
            string fileContent = File.ReadAllText(file.FullName, Encoding.GetEncoding("big5"));
            File.WriteAllText(file.FullName, fileContent, Encoding.UTF8);
            Console.WriteLine(" 轉換完畢! ");
        }
    }
    Console.WriteLine();
    Console.WriteLine("執行完畢!");
    Console.ReadKey();            
}