.NET Framework 的项目如何使用 FTP 下载文件

using System;
using System.IO;
using System.Net;
namespace Examples.System.Net
{
    public class WebRequestGetExample
    {
        public static void Main ()
        {
            // Get the object used to communicate with the server.
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.contoso.com/test.htm");
            request.Method = WebRequestMethods.Ftp.DownloadFile;
            // This example assumes the FTP site uses anonymous logon.
            request.Credentials = new NetworkCredential("anonymous","janeDoe@contoso.com");
            FtpWebResponse response = (FtpWebResponse)request.GetResponse();
            Stream responseStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(responseStream);
            Console.WriteLine(reader.ReadToEnd());
            Console.WriteLine($"Download Complete, status {response.StatusDescription}");
            reader.Close();
            response.Close();
        }
    }
}