using System;
using System
.Collections
.Generic;
using System
.ComponentModel;
using System
.Data;
using System
.Drawing;
using System
.Linq;
using System
.Text;
using System
.Threading
.Tasks;
using System
.Windows
.Forms;
using System
.IO
.Ports;
using System
.IO;
namespace 自制串口助手
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
#region 变量定义
bool m_p = true; //判断串口是否打开，布尔变量，用于判断串口是否已经打开
SerialPort serialport = new SerialPort(); //创建串口类的对象
public static
string comDate =
null; //接收串口数据并解析
private
string receivedData = ""; // 新增：用于保存所有接收到的数据
#endregion
/// <summary>
/// 初始化窗体
/// </summary>
private void Form1_Load(object sender, EventArgs e)
{
//设置窗口号com1
this
.comboBox1
.SelectedIndex = 0;
//设置波特率
this
.comboBox2
.SelectedIndex = 0;
//设置数据位8
this
.comboBox3
.SelectedIndex = 1;
//设置校验位none
this
.comboBox4
.SelectedIndex = 0;
//设置停止位1
this
.comboBox5
.SelectedIndex = 0;
}
/// <summary>
/// 打开/关闭串口
/// </summary>
private void button1_Click(object sender, EventArgs e)
{
Openport();//调用 Openport() 方法
}
private void Openport()
{
if (m_p == true) // 如果串口未打开,设置串口参数并打开串口
{
this
.button1
.Text = "关闭串口";//更改按钮文本为“关闭串口
serialport
.PortName = this
.comboBox1
.Text; //设置串口号
serialport
.BaudRate = int
.Parse(this
.comboBox2
.Text); //设置波特率
serialport
.DataBits = int
.Parse(this
.comboBox3
.Text); //设置数据位
serialport
.StopBits = (StopBits)Enum
.Parse(typeof(StopBits), comboBox5
.Text);
// 添加校验位设置
serialport
.Parity = (Parity)Enum
.Parse(typeof(Parity), comboBox4
.Text);
serialport
.Open(); //打开串口
serialport
.DataReceived += new SerialDataReceivedEventHandler(Serialport_Datareceived);
m_p = false;//更新串口状态为已打开
}
else//如果串口已打开，则关闭串口并更新按钮文本和状态
{
this
.button1
.Text = "打开串口";//更改按钮文本为“打开串口”
serialport
.Close();// 关闭串口
m_p = true;// 更新串口状态为未打开
}
}
/// <summary>
/// 接收数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void Serialport_Datareceived(object sender, SerialDataReceivedEventArgs e)
{
//将byte数组转成字符串显示出来
int count = serialport
.BytesToRead;
byte[] recive = new byte[count]; // 创建字节数组以存储接收到的数据
//读取数据
serialport
.Read(recive, 0, count);
//判断转换成字符还是16进制
if (this
.radioButton1
.Checked) //字符串
{
string strRecieve = Encoding
.Default
.Get
String(recive); // 将字节数组转换为字符串
Control
.CheckForIllegalCrossThreadCalls = false; //避免线程占用
if (checkBox1
.Checked)
{
textBox1
.AppendText(strRecieve + "\r\n");
}
else
{
this
.textBox1
.Text += strRecieve;
}
receivedData += strRecieve; // 追加到总数据中
}
if (this
.radioButton2
.Checked) //16进制
{
string hexData = byteTohexstr(recive);
if (checkBox1
.Checked)
{
// 使用Invoke方法安全地更新UI
this
.Invoke(new MethodInvoker(() =>
{
textBox1
.Text += hexData + "\r\n";
}));
}
else
{
this
.Invoke(new MethodInvoker(() =>
{
textBox1
.Text += hexData;
}));
}
receivedData += hexData; // 追加到总数据中
comDate = hexData;
ExtractData(); //提取串口数据
}
}
//将字节数组转换为16进制字符串。
public static
string byteTohexstr(byte[] bytes)
{
string str = ""; //构建返回字符串
if (bytes !=
null)
{
for (int i = 0; i < bytes
.Length; i++) //循环转化成字符串
{
str += bytes[i]
.To
String("x2") + "";
}
}
return str;
}
//将接收到的16进制字符串数据提取并转换为整数数组
public static void ExtractData()
{
int[] intArray = { };
string[]
strArray = { };
strArray = comDate
.Split(); //提取返回数据到数组中
strArray =
strArray.Take(
strArray.Count() - 1)
.ToArray(); //从数组中删除最后一项
for (int i = 0; i <
strArray.Length; i++)
{
try
{
intArray[i] = Convert
.ToInt32(
strArray[i]);
}
catch (Exception)
{
// 捕获转换异常
}
}
}
/// <summary>
/// 发送数据
/// </summary>
private void button2_Click(object sender, EventArgs e)
{
try
{
// 将文本框中的字符串转换为字节数组
if (radioButton2
.Checked) //十六进制
{
// 将文本框中的字符串转换为字节数组
byte[] d = strTohexByte(this
.textBox2
.Text);
serialport
.Write(d, 0, d
.Length);
}
if (radioButton1
.Checked) //字符串发送
{
byte[] SendBuf = new byte[1024 * 1024];
SendBuf = Encoding
.Default
.GetBytes(this
.textBox2
.Text);
serialport
.Write(SendBuf, 0, SendBuf
.Length);
}
}
catch (Exception)
{
}
}
private byte[] strTohexByte(
string HEX
string) //字符串转化16进制
{
HEX
string = HEX
string.Replace(" ", "");
if ((HEX
string.Length % 2) != 0)
{
HEX
string += " ";
}
byte[] returnbytes = new byte[HEX
string.Length / 2];
for (int i = 0; i < returnbytes
.Length; i++)
{
returnbytes[i] = Convert
.ToByte(HEX
string.Sub
string(i * 2, 2)
.Replace(" ", ""), 16);
}
return returnbytes;
}
/// <summary>
/// 清空数据
/// </summary>
private void button3_Click(object sender, EventArgs e)
{
this
.textBox1
.Text = "";
}
/// <summary>
/// 保存所有收到的数据到指定文件
/// </summary>
private void button4_Click(object sender, EventArgs e)
{
if (
string.Is
NullOrEmpty(receivedData))
{
MessageBox
.Show("没有可保存的数据！");
return;
}
if (saveFileDialog1
.ShowDialog() == DialogResult
.OK)
{
try
{
File
.WriteAllText(saveFileDialog1
.FileName, receivedData);
MessageBox
.Show("数据已成功保存到：" + saveFileDialog1
.FileName);
}
catch (Exception ex)
{
MessageBox
.Show("保存失败：" + ex
.Message);
}
}
}
}
}写出每一段注释并且让我知道这个代码的用处，并且画出流程图
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