官网下载：WinSCP :: WinSCP

官网C#示例：WinSCP .NET Assembly and COM Library :: WinSCP （全程英文，其他内容建议在园内搜索，其他地方好多没有用的内容浪费时间）

引用类库：WinSCPnet.dll

执行程序：WinSCP.exe  （放在项目根目录中，没有此文件类库无法独立运行）

难点： SshHostKeyFingerprint =  “ 给定的密钥” 如果你不知道密钥没有关系，使用WinSCP.exe 程序，添加一个连接方式并登录。 登录后在Session选项中 选择 Generate Session URL/Code .查询软件生成的代码即可获取 密钥。

不同的版本密钥也不一样。

待解决问题：下载、上传指定的文件类型 (如果有做完的同学请@我学习一下)

方式一 使用类库操作

下载 PutFiles ， 上传 PutFiles

        /// <summary>
        /// WinSCP数据传输
        /// </summary>
        /// <param name="winscptype">选择操作方式：上传、下载</param>
        /// <param name="srcPath">源目录</param>
        /// <param name="objPath">目标目录</param>
        /// <param name="hostName">IP地址</param>
        /// <param name="userName">账户</param>
        /// <param name="password">密码</param>
        /// <returns></returns>
        public int WinSCP(WinSCPType winscptype, string srcPath, string objPath, string hostName, string userName, string password, int portNumber, string sshHostKeyFingerprint)
        {
            try
            {
             Setup session options
            SessionOptions sessionOptions = new SessionOptions
            {
                Protocol = Protocol.Sftp,
                HostName = hostName,
                UserName = userName,
                Password = password,
                PortNumber = portNumber,
                SshHostKeyFingerprint = sshHostKeyFingerprint,
                //SshHostKeyFingerprint = "ssh-rsa 2048 xxxxxxxxxxx...="
            };

            using (Session session = new Session())
            {
                // Connect
                session.Open(sessionOptions);

                // Upload files
                TransferOptions transferOptions = new TransferOptions();
                transferOptions.TransferMode = TransferMode.Binary;

                TransferOperationResult transferResult;
                switch (winscptype)
                {
                    case WinSCPType.Download:
                        transferResult = session.GetFiles(srcPath, objPath, false, transferOptions);
                        break;
                    case WinSCPType.Upload:
                        transferResult = session.PutFiles(srcPath, objPath, false, transferOptions);
                        break;
                    default:
                        transferResult = session.GetFiles(srcPath, objPath, false, transferOptions);
                        break;
                }

                // Throw on any error
                transferResult.Check();

                // Print results
                foreach (TransferEventArgs transfer in transferResult.Transfers)
                {
                    Console.WriteLine("{1} of {0} succeeded", transfer.FileName, Enum.Parse(typeof(WinSCPType), winscptype.GetHashCode().ToString()).ToString());
                }
            }

            return 0;
            }
            catch (Exception e)
            {
                Console.WriteLine("Error: {0}", e);
                return 1;
            }
        }

　操作枚举

public enum WinSCPType
{
    Download = 0,
    Upload = 1

}

方法二  使用脚本执行操作

     private string winSCPDefaultPath = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "WinSCP.exe";

        public string GetWinSCPBackupScript(string name, string pass, string ip, string backup_src, string backup_obj)
        {
            if (!File.Exists(winSCPDefaultPath))
            {
                Console.WriteLine("WinSCP.exe 执行程序不存在. 无法执行");
                return "WinSCP.exe 执行程序不存在. 无法执行";
            }

            StringBuilder sb = new StringBuilder();
            sb.AppendFormat("{0} /console /command", winSCPDefaultPath);
            sb.Append(" "option batch continue"");
            sb.Append(" "option echo on"");
            sb.Append(" "option transfer binary"");
            sb.AppendFormat(" "open {0}:{1}@{2}"", name, pass, ip);
            sb.AppendFormat(" "cd {0}"", backup_src);
            sb.AppendFormat(" "lcd {0}"", backup_obj);
            sb.AppendFormat(" "get *.dat"");

            //sb.AppendFormat(" "get {0}/{2}  {1}\{2} "", backup_src, backup_obj, GetWeek() - 1);
            sb.AppendFormat(" "exit"");
            return sb.ToString();

        }