使用WinSCP .NET程序集在FTP服务器上生成新文件和已修改文件的列表

SessionOptions sessionOptions = new SessionOptions
{
    Protocol = Protocol.Ftp,
    HostName = "ftp.example.com",
    UserName = "username",
    Password = "password"
};

Session session = new Session();
session.Open(sessionOptions);

RemoteDirectoryInfo directoryInfo = session.ListDirectory("/path/to/directory");

foreach (RemoteFileInfo fileInfo in directoryInfo.Files)
{
    Console.WriteLine("File: " + fileInfo.Name);
}

string localDirectory = "C:\\path\\to\\local\\directory";
string remoteDirectory = "/path/to/remote/directory";

foreach (RemoteFileInfo fileInfo in directoryInfo.Files)
{
    string remoteFilePath = remoteDirectory + "/" + fileInfo.Name;
    string localFilePath = Path.Combine(localDirectory, fileInfo.Name);

    if (File.Exists(localFilePath))
    {
        FileInfo localFileInfo = new FileInfo(localFilePath);

        if (localFileInfo.Length != fileInfo.Length || localFileInfo.LastWriteTime != fileInfo.LastWriteTime)
        {
            Console.WriteLine("Modified file: " + fileInfo.Name);
        }
    }
    else
    {
        Console.WriteLine("New file: " + fileInfo.Name);
    }
}

List<string> newFiles = new List<string>();
List<string> modifiedFiles = new List<string>();

foreach (RemoteFileInfo fileInfo in directoryInfo.Files)
{
    string remoteFilePath = remoteDirectory + "/" + fileInfo.Name;
    string localFilePath = Path.Combine(localDirectory, fileInfo.Name);

    if (File.Exists(localFilePath))
    {
        FileInfo localFileInfo = new FileInfo(localFilePath);

        if (localFileInfo.Length != fileInfo.Length || localFileInfo.LastWriteTime != fileInfo.LastWriteTime)
        {
            modifiedFiles.Add(fileInfo.Name);
        }
    }
    else
    {
        newFiles.Add(fileInfo.Name);
    }
}

Console.WriteLine("New files:");
foreach (string newFile in newFiles)
{
    Console.WriteLine(newFile);
}

Console.WriteLine("Modified files:");
foreach (string modifiedFile in modifiedFiles)
{
    Console.WriteLine(modifiedFile);
}