用的Microsoft Visual Studio 2010,是关于串口调试助手接收到的数据换行的问题,
在调试的时候都正常,是在每句结尾插入换行符,但是实际运行就变成隔几个字符就出现一个换行,一条数据分了好几行,这是为什么呢?
C#为什么调试结果和实际运行结果不同?
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5条回答 默认 最新
- qq_24075209 2014-12-25 00:28关注
能帮我看看是哪里的问题么?代码如下:
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.Text.RegularExpressions;
using System.IO.Ports;namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
// 关闭标志,表示串口正在关闭
private bool closing = false;//监听标志, 用于安全关闭串口 private bool listening = false; //累计发送字节 private long sendCount = 0; //累计接收字节 private long receiveCount = 0; //每次接收到的数据 string data; //总的接收到的数据 string sa = ""; int b; int d; public Form1() { InitializeComponent(); } //关闭串口按钮事件 private void button1_Click(object sender, EventArgs e) { serialPort1.Close(); Close(); } //串口初始化 private void Form1_Load(object sender, EventArgs e) { //设置默认属性 if (comboBox_portName.Text == "") comboBox_portName.Text = "COM1"; //查询电脑上的串口并显示在控件里 foreach (string s in SerialPort.GetPortNames()) { comboBox_portName.Items.Add(s); } //初始化combox2 comboBox_rate.Items.Add("300"); comboBox_rate.Items.Add("600"); comboBox_rate.Items.Add("1200"); comboBox_rate.Items.Add("2400"); comboBox_rate.Items.Add("4800"); comboBox_rate.Items.Add("9600"); comboBox_rate.Items.Add("19200"); comboBox_rate.Items.Add("38400"); comboBox_rate.Items.Add("76800"); comboBox_rate.Items.Add("115200"); comboBox_rate.SelectedIndex = 5; serialPort1.DataReceived += new SerialDataReceivedEventHandler(serialPort1_DataReceived); } //打开串口 private void OpenSerialPort() { if (serialPort1.IsOpen) { return; } try { //根据comboBox设定串口名和波特率打开串口 serialPort1.PortName = comboBox_portName.Text; serialPort1.BaudRate = int.Parse(comboBox_rate.Text); serialPort1.Open(); if (serialPort1.IsOpen) //串口打开之后 { button_openClosePort.Text = "关闭串口"; Label_mainMessage.ForeColor = Color.Green; Label_mainMessage.Text = serialPort1.PortName + "已打开"; } } catch //异常状态 { Label_mainMessage.ForeColor = Color.Red; Label_mainMessage.Text = "串口打开失败!"; } } //关闭串口 private void CloseSerialPort() { if (!serialPort1.IsOpen) { return; } try { closing = true; while (listening) Application.DoEvents(); serialPort1.Close(); closing = false; if (!serialPort1.IsOpen) //串口关闭之后 { button_openClosePort.Text = "打开串口"; Label_mainMessage.ForeColor = Color.Green; Label_mainMessage.Text = serialPort1.PortName + "已关闭"; } } catch //异常状态 { Label_mainMessage.ForeColor = Color.Red; Label_mainMessage.Text = "串口关闭失败!"; } } bool IsBr = false; //显示接收数据并进行相应的格式转换 private void DisplayText(object sender, EventArgs e) { string a; //定义a存放每次接收到的数据 a = data; StringBuilder buildHexPlay = new StringBuilder(); if (a.Length == 0) //窗口为空,不需要转换 return; if (check_hexPlay.Checked) //将字符转换为HEX格式显示 { char[] bufString = new char[a.Length]; bufString = a.ToArray(); foreach (char c in bufString) { if (c == '\n') buildHexPlay.Append("0"); buildHexPlay.Append(Convert.ToString(Convert.ToByte(c), 16) + " "); } a = buildHexPlay.ToString().ToUpper(); sa += a; //用sa存放2次一共接收到的数据 textBox_receive.Text = sa; } else //将HEX转为字符显示 { textBox_receive.Text = textBox_receive.Text + data; //string[] bufString = new string[textBox_receive.Text.Length]; //char[] split = { ' ', '\n', '\r' }; //将空格,回车符过滤,BUF:可能存在 //bufString = textBox_receive.Text.Trim().Split(split); //foreach (string ss in bufString) //{ // if (ss != "") //由于有回车符"\r\n"存在,所以得到的SS可能为"" // buildHexPlay.Append(Convert.ToChar(Convert.ToByte(ss, 16))); //} //textBox_receive.Text = textBox_receive.Text + data; } Label_receiveCount.Text = "接收字节:" + d; //显示记数 } private void button2_Click(object sender, EventArgs e) { if (!serialPort1.IsOpen) //判断串口是否打开 { Label_mainMessage.ForeColor = Color.Red; Label_mainMessage.Text = "串口未打开!"; return; } else { StringBuilder buildSend = new StringBuilder(); int count = 0; //if (checkBox_hexSend.Checked) //发送16进制 这里都需要16进制发送,所以不需要判断 { List<byte> bufferSend = new List<byte>(); // buildSend.Clear(); string sendSting =textBox_sendString.Text.Trim(); //删去前导和后置空格符 string s = ""; while (sendSting.Length > 1) //奇数个16进制数据最后一个被抛弃 { s = sendSting.Substring(0, 2); buildSend.Append(s + " "); bufferSend.Add(Convert.ToByte(s, 16)); //将字符s 如“1A” 转化为字节31,送入字节列表BufferSend sendSting = sendSting.Remove(0, 2); sendSting = sendSting.Trim(); //删去前导空格符 } //textBox_sendString.Text = buildSend.ToString().ToUpper(); //格式化显示发送的数据 serialPort1.Write(bufferSend.ToArray(), 0, bufferSend.ToArray().Length); //发送数据 //计算发送字节数 count = bufferSend.Count; sendCount += count; Label_sendCount.Text = "发送字节:" + sendCount.ToString(); //显示记数 } //else //asc编码直接发送,发送字符 //{ // if (checkBox_sendNewLine.Checked) //发送新行 // { // serialPort1.WriteLine(textBox_sendString.Text); // count = textBox_sendString.Text.Length + 2; // } // else // { // serialPort1.Write(textBox_sendString.Text); //count = textBox_sendString.Text.Length; // } //} //sendCount += count; //Label_sendCount.Text = sendCount.ToString(); } } //接收事件 void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e) { if (textBox_sendString.Text == "D1 FF" || textBox_sendString.Text == "D3 FF" || textBox_sendString.Text == "d1 ff" || textBox_sendString.Text == "d3 ff") { Byte[] receivedData = new Byte[serialPort1.BytesToRead]; //创建接收字节数组 serialPort1.Read(receivedData, 0, receivedData.Length); //读取数据 //serialPort1.DiscardInBuffer(); //清空SerialPort控件的Buffer string strRcv = null; for (int i = 0; i < receivedData.Length; i++) //窗体显示 { strRcv += receivedData[i].ToString("X2") + " "; //16进制显示 } data = strRcv; b = receivedData.Length; d += b; data = strRcv + "\r\n"; this.Invoke(new EventHandler(DisplayText)); } else { data = serialPort1.ReadExisting(); //将接收到的数据传给data b = data.Length; d += b; data += "\r\n"; this.Invoke(new EventHandler(DisplayText)); } } //HEX显示按钮的格式转换,与显示接收事件中的一样 private void check_hexPlay_CheckedChanged(object sender, EventArgs e) { StringBuilder buildHexPlay = new StringBuilder(); if (textBox_receive.Text.Length == 0) //窗口为空,不需要转换 return; if (check_hexPlay.Checked) //将字符转换为HEX格式显示 { char[] bufString = new char[textBox_receive.Text.Length]; bufString = textBox_receive.Text.ToArray(); foreach (char c in bufString) { if(c == '\n') buildHexPlay.Append("0"); buildHexPlay.Append(Convert.ToString(Convert.ToByte(c), 16) + " "); } textBox_receive.Text = buildHexPlay.ToString().ToUpper(); } else //将HEX转为字符显示 { string[] bufString = new string[textBox_receive.Text.Length]; char[] split = { ' ', '\n', '\r' }; //将空格,回车符过滤,BUF:可能存在 bufString = textBox_receive.Text.Trim().Split(split); foreach (string ss in bufString) { if (ss != "") //由于有回车符"\r\n"存在,所以得到的SS可能为"" buildHexPlay.Append(Convert.ToChar(Convert.ToByte(ss, 16))); } textBox_receive.Text = buildHexPlay.ToString(); } } //打开/关闭串口按钮事件 private void button_openClosePort_Click(object sender, EventArgs e) { if (button_openClosePort.Text == "打开串口") OpenSerialPort(); else CloseSerialPort(); } //清除按钮事件 private void buttonclear_Click(object sender, EventArgs e) { textBox_receive.Clear(); d = 0; receiveCount = sendCount = 0; //清空计数器 Label_receiveCount.Text = "接收字节:0"; Label_sendCount.Text = "发送字节:0"; //清空记数显示 } }
}
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