.net串口通信

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.IO;
 6 using System.IO.Ports;
 7 using System.Configuration;
 8 
 9 namespace MorrisSpace
10 {
11     class SerialPortSample
12     {
13         static SerialPort spConnector=null;
14         
15         public static void SetSerialPort()
16         {
17             string portName = "COM5";
18             int baudRate = 9600;
19             int dataBits = 8;
20             parity = Parity.None; break;
21             stopBits = StopBits.One; break;
22             try
23             {
24                 spConnector = new SerialPort(portName, baudRate, parity, dataBits, stopBits);
25             }
26             catch (IOException e)
27             {
28                 System.Windows.MessageBox.Show(e.ToString());
29             }
30         }
31 
32         public static void SendString(String str)
33         {
34             if (spConnector == null)
35             {
36                 SetSerialPort();
37             }
38             byte[] bytedata = Encoding.UTF8.GetBytes(str);
39             try
40             {
41                 spConnector.Open();
42                 spConnector.Write(bytedata, 0, bytedata.Length);
43                 spConnector.Close();
44             }
45             catch (IOException e)
46             {
47                 System.Windows.MessageBox.Show(e.ToString());
48             }
49         }
50     }
51 }