使用c#登录ftp

using System;
using System.IO;
using System.Net;
using System.Text;

public class FtpLoginExample
{
    public static void Main(string[] args)
    {
        string ftpServerIP = "your_ftp_server_ip";
        string ftpUserID = "your_ftp_username";
        string ftpPassword = "your_ftp_password";

        try
        {
            FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(ftpServerIP);
            ftpRequest.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
            ftpRequest.Method = WebRequestMethods.Ftp.ListDirectory;

            FtpWebResponse response = (FtpWebResponse)ftpRequest.GetResponse();
            Stream responseStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(responseStream);

            Console.WriteLine("Listing directory:");
            while (!reader.EndOfStream)
            {
                Console.WriteLine(reader.ReadLine());
            }

            reader.Close();
            response.Close();
        }
        catch (Exception ex)
        {
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}