如下代码请教大神====使用是串口调试助手进行调试，但是在调试的时候出现老是提示“端口访问拒绝”,如果把串口调试助手关掉就不出现这个问题，请问如何解决====usingSystem;usingSyst...

如下代码请教大神

====

使用是串口调试助手进行调试，但是在调试的时候出现老是提示“端口访问拒绝”, 如果把串口调试助手关掉就不出现这个问题，请问如何解决

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using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO.Ports;

namespace WindowsFormsApplication3

{

public partial class Form1 : Form

{

SerialPort serialPort1 = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One); //初始化串口设置

public delegate void Displaydelegate(byte[] InputBuf);

Byte[] OutputBuf = new Byte[128];

public Displaydelegate disp_delegate;

public Form1()

{

disp_delegate = new Displaydelegate(DispUI);

serialPort1.DataReceived += new SerialDataReceivedEventHandler(Comm_DataReceived);

InitializeComponent();

}

private void button1_Click(object sender, EventArgs e)

{

try

{

if (button1.Text == "打开")

{

if (!serialPort1.IsOpen)

{ serialPort1.Open(); }

button1.Text = "关闭";

}

else

{

serialPort1.Close();

button1.Text = "打开";

}

}

catch (Exception ex)

{

MessageBox.Show(ex.Message, "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error);

return;

}

}

void Comm_DataReceived(object sender, SerialDataReceivedEventArgs e)

{

Byte[] InputBuf = new Byte[128];

try

{

serialPort1.Read(InputBuf, 0, serialPort1.BytesToRead); //读取缓冲区的数据直到“}”即0x7D为结束符

//InputBuf = UnicodeEncoding.Default.GetBytes(strRD); //将得到的数据转换成byte的格式

System.Threading.Thread.Sleep(50);

this.Invoke(disp_delegate, InputBuf);

}

catch (TimeoutException ex) //超时处理

{

MessageBox.Show(ex.ToString());

}

}

public void DispUI(byte[] InputBuf)

{

//textBox1.Text = Convert.ToString(InputBuf);

ASCIIEncoding encoding = new ASCIIEncoding();

richTextBox1.Text = encoding.GetString(InputBuf);

}

}

}

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