如何在c#蛋糕构建中创建一个任务来使用FTP上传文件？

string ftpServer = "ftp://ftp.example.com";
string username = "username";
string password = "password";

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpServer);
request.Credentials = new NetworkCredential(username, password);
request.Method = WebRequestMethods.Ftp.UploadFile;

string filePath = "path/to/file.txt";
byte[] fileContents = File.ReadAllBytes(filePath);

using (Stream requestStream = request.GetRequestStream())
{
    requestStream.Write(fileContents, 0, fileContents.Length);
}

using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
    Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);
}

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

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

        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpServer);
        request.Credentials = new NetworkCredential(username, password);
        request.Method = WebRequestMethods.Ftp.UploadFile;

        string filePath = "path/to/file.txt";
        byte[] fileContents = File.ReadAllBytes(filePath);

        using (Stream requestStream = request.GetRequestStream())
        {
            requestStream.Write(fileContents, 0, fileContents.Length);
        }

        using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
        {
            Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);
        }
    }
}