C# 用winform写一个简单的串口助手（包含扫描可用串口，用数值/字符串形式收发数据）学习记录

C# 用winform写一个简单的串口助手（包含扫描可用串口，用数值/字符串形式收发数据）学习记录

/*内容是跟着杜洋工作室的C#串口助手开发课程学习的记录*/

窗口设计

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Ports;namespace SerialPortAssistant1
{public partial class Form1 : Form{public Form1(){InitializeComponent();System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;}private void Form1_Load(object sender, EventArgs e){comboBox1.Text = "COM";//串口选择框默认显示comboBox2.Text = "9600";//波特率选择默认显示//GetComList();//将可用串口添加到串口选择下拉框中//serialPort1.DataReceived += new SerialDataReceivedEventHandler(Serialport1_DataReceived);//手动添加事件处理程序}/* 此获取串口名称后无法正常打开串口private void GetComList()//获取PC可用串口{try{using (ManagementObjectSearcher searcher = new ManagementObjectSearcher("select * from Win32_PnPEntity")){var hardInfos = searcher.Get();int index = 1;foreach (var hardInfo in hardInfos){