//if (!sp1.IsOpen)
                    //{
                    //    sp1.DiscardInBuffer();//清空SerialPort控件的Buffer 
                    //    return;
                    //}

                    //ilen = sp1.BytesToRead;
                    //if (ilen > 0)
                    //{
                    //    bytes = new byte[ilen];
                    //    sp1.Read(bytes, 0, ilen);
                    //    //tilen = ilen;

                    //    //界面显示
                    //    string receiveString = "";

                    //    if (radioButton1.Checked == true)
                    //    {
                    //        receiveString = byteToHexStr(bytes) + System.Environment.NewLine;
                    //    }

                    //    if (radioButton2.Checked == true)
                    //    {
                    //        receiveString = Encoding.Default.GetString(bytes) + System.Environment.NewLine;
                    //    }
                    //    txtReceive.AppendText("接收:" + receiveString);

                    //    sp1.DiscardInBuffer();//清空SerialPort控件的Buffer 



                    //}

                    ////接收7e指令
                    ////DealCmd(bytes);

                    //int i = 0;
                    //int num = 0;
                    //int flag = 1;
                    ////for (i = 0; i < bytes.Length; i++)
                    ////{
                    ////    if (bytes[i] == 0x05)
                    ////    {
                    ////        num = i;
                    ////        flag = 1;
                    ////        break;
                    ////    }
                    ////}
                    //if (flag == 1)
                    //{
                    //    byte[] bytes2 = new byte[bytes.Length];

                    //    for (i = 0; i < (bytes.Length - num); i++)
                    //    {
                    //        bytes2[i] = bytes[i + num];
                    //    }

                    //    //界面显示
                    //    string receiveString = "";

                    //    if(radioButton1.Checked == true)
                    //    {
                    //        receiveString = byteToHexStr(bytes2) + System.Environment.NewLine;
                    //    }

                    //    if(radioButton2.Checked == true)
                    //    {
                    //        receiveString = Encoding.Default.GetString(bytes2) + System.Environment.NewLine;
                    //    }
                    //    txtReceive.AppendText("接收:" + receiveString);

                    //    try
                    //    {
                    //            //数据分析
                    //            if (bytes2[7] == 0xf1 && bytes2[8] == 0x07)
                    //            {
                    //                //////save
                    //                //{
                    //                //    OleDbConnection conn;
                    //                //    conn = new OleDbConnection(@"Provider=Microsoft.Jet.OleDb.4.0; Data Source=" + Directory.GetCurrentDirectory() + "\\rqdata.mdb");
                    //                //    conn.Open();

                    //                //    OleDbCommand cmd = conn.CreateCommand();
                    //                //    cmd.CommandText = @"INSERT INTO YunXin_ProductSort([Device_ID], [P1], [P2], [P3], [F], [AddTimers])VALUES('" + "Device_ID" + "', '";
                    //                //    cmd.CommandText += textBox3.Text + "', '" + textBox5.Text + "', '";
                    //                //    cmd.CommandText += textBox7.Text + "', '";
                    //                //    cmd.CommandText += textBox11.Text + "', '";
                    //                //    cmd.CommandText += DateTime.Now.ToString("G") + "')";
                    //                //    cmd.ExecuteNonQuery();
                    //                //    conn.Close();
                    //                //}
                    //            }
                    //    }
                    //    catch
                    //    {


                    //    }
                    //}

                    //////界面显示
                    ////string receivStr = System.Text.Encoding.GetEncoding("GB18030").GetString(bytes); //xx="中文";

                    ////txtReceive.AppendText(receivStr);

                    ////txtReceive.SelectionStart = txtReceive.TextLength;

                    ////txtReceive.SelectionStart = txtReceive.TextLength + 10;//设置选中文字的开始位置为文本框的文字的长度，如果超过了文本长度，则默认为文本的最后。
                    ////txtReceive.SelectionLength = 0;//设置被选中文字的长度为0（将光标移动到文字最后）
                    ////txtReceive.ScrollToCaret();//滚动条移动到光标位置

                    //sp1.DiscardInBuffer();//清空SerialPort控件的Buffer