在C#中连接到FTP服务器

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

class Program
{
    static void Main()
    {
        string ftpUrl = "ftp://example.com/";
        string ftpUsername = "username";
        string ftpPassword = "password";

        // 创建FTP请求对象
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpUrl);
        request.Method = WebRequestMethods.Ftp.ListDirectory;
        request.Credentials = new NetworkCredential(ftpUsername, ftpPassword);

        // 发送FTP请求并获取响应
        FtpWebResponse response = (FtpWebResponse)request.GetResponse();

        // 读取响应数据
        Stream responseStream = response.GetResponseStream();
        StreamReader reader = new StreamReader(responseStream);
        Console.WriteLine(reader.ReadToEnd());

        // 关闭连接
        reader.Close();
        response.Close();
    }
}