ICSFile：重新封裝C# File類

當路徑D:＼web＼不存在時，下邊兩個語句都會拋錯：

File.WriteAllText(@"D:＼web＼index.htm", "111cn.net");
File.ReadAllText(@"D:＼web＼index.htm");

平時調用WriteAllText前都得先調用Directory.Exists和Directory.CreateDirectory，換句話說，建立檔案和建立所屬檔案夾應為一個整體，而讀取檔案時，建立所屬檔案夾顯然不合適，基於這一原則，重新封裝了C# File類：

複製內容到剪貼簿 程式碼
public static class ICSFile
{
    private static readonly Encoding DEFAULTENCODE = Encoding.UTF8;

    /// <summary>
    /// 建立父資料夾
    /// </summary>
    /// <param name="path"></param>
    /// <returns></returns>
    private static void CreateDirectory(string path)
    {
        string dir = Path.GetDirectoryName(path);
        if (!Directory.Exists(dir))
        {
            Directory.CreateDirectory(dir);
        }
    }

    /// <summary>
    /// 追加文本
    /// </summary>
    /// <param name="path"></param>
    /// <param name="contents"></param>
    public static void AppendAllText(string path, string contents)
    {
        AppendAllText(path, contents, DEFAULTENCODE);
    }

    /// <summary>
    /// 追加文本
    /// </summary>
    /// <param name="path"></param>
    /// <param name="contents"></param>
    /// <param name="encoding"></param>
    public static void AppendAllText(string path, string contents, Encoding encoding)
    {
        CreateDirectory(path);
        File.AppendAllText(path, contents, encoding);
    }

    /// <summary>
    /// 複製檔案
    /// </summary>
    /// <param name="sourceFileName"></param>
    /// <param name="destFileName"></param>
    public static void Copy(string sourceFileName, string destFileName)
    {
        Copy(sourceFileName, destFileName, false);
    }

    /// <summary>
    /// 複製檔案
    /// </summary>
    /// <param name="sourceFileName"></param>
    /// <param name="destFileName"></param>
    /// <param name="overwrite"></param>
    public static void Copy(string sourceFileName, string destFileName, bool overwrite)
    {
        CreateDirectory(destFileName);
        File.Copy(sourceFileName, destFileName, overwrite);
    }

    /// <summary>
    /// 刪除檔案
    /// </summary>
    /// <param name="path"></param>
    public static void Delete(string path)
    {
        File.Delete(path);
    }

    /// <summary>
    /// 判斷檔案是否存在
    /// </summary>
    /// <param name="path"></param>
    /// <returns></returns>
    public static bool Exists(string path)
    {
        return File.Exists(path);
    }

    /// <summary>
    /// 移動檔案
    /// </summary>
    /// <param name="sourceFileName"></param>
    /// <param name="destFileName"></param>
    public static void Move(string sourceFileName, string destFileName)
    {
        Move(sourceFileName, destFileName, false);
    }

    /// <summary>
    /// 移動檔案
    /// </summary>
    /// <param name="sourceFileName"></param>
    /// <param name="destFileName"></param>
    /// <param name="overwrite"></param>
    public static void Move(string sourceFileName, string destFileName, bool overwrite)
    {
        if (overwrite && File.Exists(destFileName))
        {
            File.Delete(destFileName);
        }
        CreateDirectory(destFileName);
        File.Move(sourceFileName, destFileName);
    }

    /// <summary>
    /// 讀取檔案
    /// </summary>
    /// <param name="path"></param>
    /// <returns></returns>
    public static string ReadAllText(string path)
    {
        return ReadAllText(path, DEFAULTENCODE);
    }

    /// <summary>
    /// 讀取檔案
    /// </summary>
    /// <param name="path"></param>
    /// <param name="encoding"></param>
    /// <returns></returns>
    public static string ReadAllText(string path, Encoding encoding)
    {
        return File.ReadAllText(path, encoding);
    }

    /// <summary>
    /// 建立一個新檔案寫入文本
    /// </summary>
    /// <param name="path"></param>
    /// <param name="contents"></param>
    public static void WriteAllText(string path, string contents)
    {
        WriteAllText(path, contents, DEFAULTENCODE);
    }

    /// <summary>
    /// 建立一個新檔案寫入文本
    /// </summary>
    /// <param name="path"></param>
    /// <param name="contents"></param>
    /// <param name="encoding"></param>
    public static void WriteAllText(string path, string contents, Encoding encoding)
    {
        CreateDirectory(path);
        File.WriteAllText(path, contents, encoding);
    }
}