WinScp上传和下载

不多说，贴代码，看不懂得可以留言。需要引入WinSCP

 public class WebWinScp
     {
         //远程上传路径
         private SessionOptions sessionOptions = null;
         private WinSCP.Session session = new WinSCP.Session();
         /// <summary>
         ///
         /// </summary>
         /// <param name="HostName">FTP服务器</param>
         /// <param name="UserName">账号</param>
         /// <param name="Password">密码</param>
         /// <param name="SshPrivateKeyPath">Ssh私有密钥路径(以PPK结尾的文件)</param>
         public WebWinScp(string HostName, string UserName, string Password, string SshPrivateKeyPath)
         {
             sessionOptions = new SessionOptions
             {
                 Protocol = Protocol.Sftp,
                 HostName = HostName,
                 UserName = UserName,
                 Password = Password,
                 SshPrivateKeyPath = SshPrivateKeyPath,
                 GiveUpSecurityAndAcceptAnySshHostKey = true
             };
         }
         /// <summary>
         /// 下载FTP上的所有文件，并移除FTP上下载的问题
         /// </summary>
         /// <param name="localPath">本地下载路径</param>
         /// <param name="remoteDoPath">远程下载路径</param>
         public void Download(string localPath, string remoteDoPath)
         {
             try
             {
                 //开启连接
                 session.Open(sessionOptions);
                 TransferOptions transferOptions = new TransferOptions();
                 //传输模式  二进制
                 transferOptions.TransferMode = TransferMode.Binary;
                 //FTP上的目录列表
                 RemoteDirectoryInfo directoryInfo = session.ListDirectory(remoteDoPath);
                 RemoteFileInfoCollection ct = directoryInfo.Files;
                 TransferOperationResult transferResult;
                 foreach (RemoteFileInfo item in ct)
                 {
                     transferResult = session.GetFiles(remoteDoPath + item.Name, localPath, true, transferOptions);
                     if (transferResult != null)
                     {
                         transferResult.Check();
                     }
                 }
             }
             catch (Exception)
             {
                 throw;
             }
             finally
             {
                 if (session.Opened)
                 {
                     session.Close();
                 }
             }
         }
         /// <summary>
         /// 上传本地文件到FTP上，上传成功删除本机文件
         /// </summary>
         /// <param name="localPath">本地上传路径</param>
         /// <param name="remoteUpPath">远程上传路径</param>
         public void Upload(string localPath, string remoteUpPath)
         {
             try
             {
                 //开启连接
                 session.Open(sessionOptions);
                 TransferOptions transferOptions = new TransferOptions();
                 //传输模式  二进制
                 transferOptions.TransferMode = TransferMode.Binary;
                 TransferOperationResult transferResult = null;
                 transferResult = session.PutFiles(localPath, remoteUpPath, true, transferOptions);
                 if (transferResult != null)
                 {
                     transferResult.Check();
                 }
             }
             catch (Exception)
             {
                 throw;
             }
             finally
             {
                 if (session.Opened)
                 {
                     session.Close();
                 }
             }
         }
     }