C#串口接收数据会多回车换行符怎么处理？求助
代码如下：using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using System.IO;
namespace ComTool
{
/*---------------作者：叶知秋----------------------*/
/*---------------时间：2012年12月6日---------------*/
/*---------------邮箱：yq@yyzq.net---------*/
/*---------------www.yyzq.net--------------------------*/
/*本人兼职各类软硬件系统集成，RFID系统集成，工控测试系统开发。*/
/*任何个人均可免费修改，使用本程序，但请保留以上作者信息，谢谢！*/
public partial class Form1 : Form
{
SerialPort ComDevice = new SerialPort();
bool AllowReceive = true;
SubWin.CheckWin Cwin = new SubWin.CheckWin();
SubWin.ByteCaculator BCWin = new SubWin.ByteCaculator();
Config cConfig;
Config g_Config;
string nowtime;
string serialdata;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
lblVersion.Text += AssemblyLib.AssemblyVersion;
//获取可用串口列表
string[] ports = SerialPort.GetPortNames();
foreach (string port in ports)
{
drpComList.Items.Add(port);
}
if (drpComList.Items.Count > 0)
{
drpComList.SelectedIndex = 0;
btnCom.Enabled = true;
}
drpBaudRate.SelectedIndex = 11;
drpParity.SelectedIndex = 0;
drpDataBits.SelectedIndex = 0;
drpStopBits.SelectedIndex = 0;
ComDevice.DataReceived += new SerialDataReceivedEventHandler(ComDevice_DataReceived);
}
private void btnCom_Click(object sender, EventArgs e)
{
if (btnCom.Tag.ToString() == "0")
{
ComDevice.PortName = drpComList.SelectedItem.ToString();
ComDevice.BaudRate = Convert.ToInt32(drpBaudRate.SelectedItem.ToString());
ComDevice.Parity = (Parity)Convert.ToInt32(drpParity.SelectedIndex.ToString());
ComDevice.DataBits = Convert.ToInt32(drpDataBits.SelectedItem.ToString());
ComDevice.StopBits = (StopBits)Convert.ToInt32(drpStopBits.SelectedItem.ToString());
try
{
ComDevice.Open();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
btnCom.Text = "关闭串口";
btnCom.Tag = "1";
picComStatus.BackgroundImage = Properties.Resources.greenlight;
}
else
{
try
{
ComDevice.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
btnCom.Text = "打开串口";
btnCom.Tag = "0";
picComStatus.BackgroundImage = Properties.Resources.redlight;
}
}
#region 发送数据
private void btnSend_Click(object sender, EventArgs e)
{
Send();
if (cbxAutoSend.Checked == true)
{ //自动循环发送
timerAutoSend.Interval = txtSendDelay.GetInt32Value();
timerAutoSend.Enabled = true;
}
else
{
timerAutoSend.Enabled = false;
}
}
private void timerAutoSend_Tick(object sender, EventArgs e)
{
Send();
}
private void cbxAutoSend_CheckedChanged(object sender, EventArgs e)
{
if (cbxAutoSend.Checked == false)
{
timerAutoSend.Enabled = false;
}
}
//清空发送区
private void btnClearS_Click(object sender, EventArgs e)
{
txtSend.Text = "";
}
/// <summary>
/// 发送数据
/// </summary>
private void Send()
{
if (txtSend.Text.Length > 0)
{
if (ComDevice.IsOpen == true)
{
byte[] SendBytes = null;
string SendData = txtSend.Text;
if (cbxHexS.Checked == true)
{ //16进制发送
try
{
//剔除所有空格
SendData = SendData.Replace(" ", "");
if (SendData.Length % 2 == 1)
{//奇数个字符
SendData = SendData.Remove(SendData.Length - 1, 1);//去除末位字符
}
List<string> SendDataList = new List<string>();
for (int i = 0; i < SendData.Length; i = i + 2)
{
SendDataList.Add(SendData.Substring(i, 2));
}
SendBytes = new byte;
for (int j = 0; j < SendBytes.Length; j++)
{
SendBytes = (byte)(Convert.ToInt32(SendDataList, 16));
}
}
catch
{
timerAutoSend.Enabled = false;
MessageBox.Show("请输入正确的16进制数据！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
SendBytes = System.Text.Encoding.Default.GetBytes(SendData);
}
ComDevice.Write(SendBytes, 0, SendBytes.Length);//发送数据
lblSCount.Text = (Convert.ToInt32(lblSCount.Text) + SendBytes.Length).ToString();
}
else
{
timerAutoSend.Enabled = false;
MessageBox.Show("请打开串口！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
timerAutoSend.Enabled = false;
MessageBox.Show("请输入要发送的数据！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
#endregion
#region 接收数据
private void cbxAllowR_CheckedChanged(object sender, EventArgs e)
{
AllowReceive = cbxAllowR.Checked;
}
private void ComDevice_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] ReDatas = new byte;//返回命令包
ComDevice.Read(ReDatas, 0, ReDatas.Length);//读取数据
//txtReceive.Text = "";
if (AllowReceive == true)
{
if (cbxHexR.Checked == true)
{ //16进制显示
StringBuilder sb = new StringBuilder();
for (int i = 0; i < ReDatas.Length; i++)
{
sb.AppendFormat("{0:x2}" + " ", ReDatas);
}
UpdateRecevie(sb.ToString().ToUpper());
}
else
{
string str = System.Text.Encoding.Default.GetString(ReDatas);
UpdateRecevie(System.Text.Encoding.Default.GetString(ReDatas));
StreamWriter sw = new StreamWriter("F:\\TestTxt.txt", true);
sw.WriteLine(str);
sw.Close();
}
UpdateReceiveCount(ReDatas.Length);
}
else
{
ComDevice.DiscardInBuffer();
}
}
//清空接收区
private void btnClearR_Click(object sender, EventArgs e)
{
txtReceive.Text = string.Empty;
textBox1.Text = string.Empty;
textBox2.Text = string.Empty;
}
#endregion
#region UI更新
public delegate void UpdateString(object NewData);
public void UpdateRecevie(object NewData)
{
if (this.InvokeRequired)//等待异步
{
UpdateString _myInvoke = new UpdateString(UpdateRecevie);
this.Invoke(_myInvoke, new object[] { NewData });
}
else
{
txtReceive.AppendText(NewData.ToString());
txtReceive.SelectionStart = txtReceive.Text.Length - 1;
txtReceive.ScrollToCaret();
serialdata = txtReceive.Text;
}
}
public void UpdateReceiveCount(object NewCount)
{
if (this.InvokeRequired)//等待异步
{
UpdateString _myInvoke = new UpdateString(UpdateReceiveCount);
this.Invoke(_myInvoke, new object[] { NewCount });
}
else
{
lblRCount.Text = (Convert.ToInt32(lblRCount.Text) + Convert.ToInt32(NewCount)).ToString();
}
}
#endregion
#region 其他
private void TMenu_Byte_Click(object sender, EventArgs e)
{
//BCWin.Show();
}
private void TMenu_C_Click(object sender, EventArgs e)
{
Cwin.Show();
}
private void TMenu_AboutMe_Click(object sender, EventArgs e)
{
new SubWin.AboutMe().ShowDialog();
}
private void btnClearCount_Click(object sender, EventArgs e)
{
lblRCount.Text = "0";
lblSCount.Text = "0";
}
#endregion
//延时函数
public static void Delay(int milliSecond)
{
int start = Environment.TickCount;
while (Math.Abs(Environment.TickCount - start) < milliSecond)
{
Application.DoEvents();
}
}
}
}
高手来解答一下！
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