代码语言：javascript复制
这个类是调试过的，可以使用<pre name="code" class="csharp">这个类是调试过的，可以使用
/// <summary>
/// 对串口进行操作的类，其中包括写和读操作
/// </summary>
public class SerialClass
{
SerialPort _serialPort = null;
//定义委托
public delegate void SerialPortDataReceiveEventArgs(object sender,SerialDataReceivedEventArgs e,byte[] bits);
//定义接收数据事件
public event SerialPortDataReceiveEventArgs DataReceived;
/// <summary>
/// 默认构造函数，操作COM1，速度为9600，没有奇偶校验，8位字节，停止位为1
/// </summary>
public SerialClass()
{
_serialPort = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
setSerialPort();
}
/// <summary>
/// 构造函数,
/// </summary>
/// <param name="comPortName"></param>
public SerialClass(string comPortName)
{
_serialPort = new SerialPort(comPortName);
setSerialPort();
}
/// <summary>
/// 构造函数,可以自定义串口的初始化参数
/// </summary>
/// <param name="comPortName">需要操作的COM口名称</param>
/// <param name="baudRate">COM的速度</param>
/// <param name="parity">奇偶校验位</param>
/// <param name="dataBits">数据长度</param>
/// <param name="stopBits">停止位</param>
public SerialClass(string comPortName, int baudRate, Parity parity, int dataBits, StopBits stopBits)
{
_serialPort = new SerialPort(comPortName, baudRate, parity, dataBits, stopBits);
setSerialPort();
}
/// <summary>
/// 设置串口资源,还需重载多个设置串口的函数
/// </summary>
void setSerialPort()
{
if (_serialPort != null)
{
//设置触发DataReceived事件的字节数为1
_serialPort.ReceivedBytesThreshold = 1;
//接收到一个字节时，也会触发DataReceived事件
_serialPort.DataReceived = new SerialDataReceivedEventHandler(_serialPort_DataReceived);
//接收数据出错,触发事件
_serialPort.ErrorReceived = new SerialErrorReceivedEventHandler(_serialPort_ErrorReceived);
//打开串口
openPort();
}
}
/// <summary>
/// 打开串口资源
/// </summary>
bool openPort()
{
bool ok = false;
//如果串口是打开的，先关闭
if (_serialPort.IsOpen)
_serialPort.Close();
try
{
//打开串口
_serialPort.Open();
ok = true;
}
catch (Exception Ex)
{
throw Ex;
}
return ok;
}
/// <summary>
/// 关闭串口资源,操作完成后,一定要关闭串口
/// </summary>
public void closePort()
{
//如果串口处于打开状态,则关闭
if (_serialPort.IsOpen)
_serialPort.Close();
}
/// <summary>
/// 接收串口数据事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void _serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
if (DataReceived != null)
{
byte[] _data=new byte[_serialPort.BytesToRead];
_serialPort.Read(_data,0,_data.Length);
DataReceived(sender, e, _data);
}
}
/// <summary>
/// 接收数据出错事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void _serialPort_ErrorReceived(object sender, SerialErrorReceivedEventArgs e)
{
}
public void writeData(string dataStr)
{
//发送数据,并加加车符
_serialPort.Write(dataStr "r");
}
/// <summary>
/// 获取所有已连接短信猫设备的串口
/// </summary>
/// <returns></returns>
public string[] serialsIsConnected()
{
List<string> lists = new List<string>();
string[] seriallist = getSerials();
foreach (string s in seriallist)
{
}
return lists.ToArray();
}
/// <summary>
/// 获得当前电脑上的所有串口资源
/// </summary>
/// <returns></returns>
public string[] getSerials()
{
return SerialPort.GetPortNames();
}
/// <summary>
/// 把字节型转换成十六进制字符串
/// </summary>
/// <param name="InBytes"></param>
/// <returns></returns>
public static string ByteToString(byte[] InBytes)
{
string StringOut = "";
foreach (byte InByte in InBytes)
{
StringOut = StringOut String.Format("{0:X2} ", InByte);
}
return StringOut;
}
/// <summary>
/// 把十六进制字符串转换成字节型
/// </summary>
/// <param name="InString"></param>
/// <returns></returns>
public static byte[] StringToByte(string InString)
{
string[] ByteStrings;
ByteStrings = InString.Split(" ".ToCharArray());
byte[] ByteOut;
ByteOut = new byte[ByteStrings.Length - 1];
for (int i = 0; i == ByteStrings.Length - 1; i )
{
ByteOut[i] = Convert.ToByte(("0x" ByteStrings[i]));
}
return ByteOut;
}
}
调用代码
static SerialClass sc = new SerialClass();
static void Main(string[] Args)
{
sc.DataReceived = new SerialClass.SerialPortDataReceiveEventArgs(sc_DataReceived);
sc.writeData("at");
Console.ReadLine();
sc.closePort();
}
static void sc_DataReceived(object sender, SerialDataReceivedEventArgs e, byte[] bits)
{
Console.WriteLine(Encoding.Default.GetString(bits));
}</pre><pre name="code" class="csharp">
