/// <summary>
/// 连接FTP测试
/// </summary>
/// <returns>0：成功 非0：失败</returns>
public int Connect()
{
int result = -1;
FileTransfer tranfer = new FileTransfer(IP, "/", FTPUser, FTPPassword, Port);
tranfer.ASCII = FTPEncoding;
tranfer.SetTransferType((FileTransfer.TransferType)(int) FTPModel);
result = tranfer.Connect(); //开始链接
tranfer.DisConnect(); //关闭连接
return(result);
//return Connect(IP, Port, FTPUser, FTPPassword, false);
}