C#删除FTP文件夹(有子文件夹和子文件)的方法

可以使用FtpWebRequest和WebRequestMethods.Ftp类来实现删除FTP服务器上的文件夹及其内容。以下是一个示例的C#代码：

using System;
using System.Net;

class Program
{
    static void Main()
    {
        string ftpServer = "ftp://yourftpserver.com/";
        string folderToDelete = "folderToDelete";

        DeleteFtpDirectory(ftpServer, folderToDelete);

        Console.WriteLine("删除完成。");
    }

    static void DeleteFtpDirectory(string ftpServer, string folderToDelete)
    {
        // 构建FTP路径
        string ftpPath = $"{ftpServer}/{folderToDelete}/";

        // 创建FTP请求对象
        FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(ftpPath);
        ftpRequest.Credentials = new NetworkCredential("username", "password");
        ftpRequest.Method = WebRequestMethods.Ftp.ListDirectoryDetails;

        try
        {
            // 获取FTP目录列表
            using (FtpWebResponse ftpResponse = (FtpWebResponse)ftpRequest.GetResponse())
            {
                using (System.IO.StreamReader streamReader = new System.IO.StreamReader(ftpResponse.GetResponseStream()))
                {
                    // 读取目录列表
                    string fileList = streamReader.ReadToEnd();
                    string[] files = fileList.Split(new string[] { "\\r\\n" }, StringSplitOptions.RemoveEmptyEntries);

                    // 遍历目录并删除文件和子目录
                    foreach (string file in files)
                    {
                        string fileName = file.Split(new char[] { ' ', '\\t' }, StringSplitOptions.RemoveEmptyEntries).Last();

                        if (fileName != "." && fileName != "..")
                        {
                            if (file.StartsWith("d")) // 如果是目录
                            {
                                DeleteFtpDirectory(ftpPath, fileName);
                            }
                            else // 如果是文件
                            {
                                DeleteFtpFile(ftpPath, fileName);
                            }
                        }
                    }
                }
            }

            // 删除空目录
            FtpWebRequest ftpRemoveRequest = (FtpWebRequest)WebRequest.Create(ftpPath);
            ftpRemoveRequest.Credentials = new NetworkCredential("username", "password");
            ftpRemoveRequest.Method = WebRequestMethods.Ftp.RemoveDirectory;
            FtpWebResponse ftpRemoveResponse = (FtpWebResponse)ftpRemoveRequest.GetResponse();
            ftpRemoveResponse.Close();
        }
        catch (WebException ex)
        {
            Console.WriteLine($"删除FTP目录失败：{ex.Message}");
        }
    }

    static void DeleteFtpFile(string ftpPath, string fileName)
    {
        // 创建FTP请求对象
        FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create($"{ftpPath}/{fileName}");
        ftpRequest.Credentials = new NetworkCredential("username", "password");
        ftpRequest.Method = WebRequestMethods.Ftp.DeleteFile;

        try
        {
            // 删除文件
            FtpWebResponse ftpResponse = (FtpWebResponse)ftpRequest.GetResponse();
            ftpResponse.Close();
        }
        catch (WebException ex)
        {
            Console.WriteLine($"删除FTP文件失败：{ex.Message}");
        }
    }
}

请注意，替换代码中的"yourftpserver.com"、"username"和"password"为实际的FTP服务器地址、用户名和密码。此代码将递归删除指定的FTP文件夹及其内容。