C# 文件、文件夾 是否存在、創建

/// <summary>
/// 判斷文件是否存在
/// </summary>
/// <param name="fullName">文件全名稱（路徑和文件名）</param>
/// <returns></returns>
public static bool fileExist(string fullName)
{
    bool response = false;
    if (File.Exists(fullName))
    {
        response = true;
    }
    return response;
}
/// <summary>
/// 創建文件
/// </summary>
/// <param name="fullName">文件全名稱（路徑和文件名）</param>
public static void fileCreate(string fullName)
{
    File.Create(fullName);
}

/// <summary>
/// 判斷文件夾是否存在
/// </summary>
/// <param name="path">路徑</param>
/// <returns></returns>
public static bool folderExist(string path)
{
    bool response = false;

    if (Directory.Exists(path))
    {
        response = true;
    }
    return response;
}

/// <summary>
/// 創建文件夾
/// </summary>
/// <param name="path">路徑</param>
public static void folderCreate(string path)
{
    Directory.CreateDirectory(path);
}