QT的c++实现串口助手的收发适合毕设（附源码）

#include "widget.h" #include "ui_widget.h" Widget::Widget(QWidget *parent) : QWidget(parent) , ui(new Ui::Widget) { ui->setupUi(this); serialport = new QSerialPort; connect(serialport,SIGNAL(readyRead()),this,SLOT(serialportReadyRead_Slot())); // 获取可用的串口信息 QList<QSerialPortInfo> serialPorts = QSerialPortInfo::availablePorts(); // 遍历每个串口信息 foreach (const QSerialPortInfo &serialPortInfo, serialPorts) { // 获取串口号 QString portName = serialPortInfo.portName(); ui->serialCb->addItem(portName); // 更新文本框的内容 } } Widget::~Widget() { delete ui; } void Widget::serialportReadyRead_Slot() { QByteArray data = serialport->readAll(); // 读取串口接收缓冲区中的数据 QString buf; // 获取当前时间并转换为字符串 QString timeStr = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss.zzz"); // 将每个字节转换为十六进制字符串并拼接 for (int i = 0; i < data.size(); i++) { buf += QString("%1 ").arg(static_cast<quint8>(data.at(i)), 2, 16, QLatin1Char('0')).toUpper(); } // 将时间戳和数据拼接成一行字符串 QString lineStr = QString("[%1] %2").arg(timeStr).arg(buf); ui->recvEdit->appendPlainText(lineStr); // 将数据追加到接收编辑框中显示 } void Widget::on_openBt_clicked() { QSerialPort::BaudRate baudRate = QSerialPort::UnknownBaud; QSerialPort::DataBits databits = QSerialPort::UnknownDataBits; QSerialPort::StopBits stopbits = QSerialPort::UnknownStopBits; QSerialPort::Parity checkBits = QSerialPort::UnknownParity; if(ui->baundrateCb->currentText()=="4800") { baudRate = QSerialPort::Baud4800; }else if(ui->baundrateCb->currentText()=="9600") { baudRate = QSerialPort::Baud9600; }else if(ui->baundrateCb->currentText()=="115200") { baudRate = QSerialPort::Baud115200; } if(ui->dataCb->currentText() == "5") { databits = QSerialPort::Data5; }else if(ui->dataCb->currentText() == "6") { databits = QSerialPort::Data6; }else if(ui->dataCb->currentText() == "7") { databits = QSerialPort::Data7; }else if(ui->dataCb->currentText() == "8") { databits = QSerialPort::Data8; } if(ui->stopCb->currentText()=="1") { stopbits = QSerialPort::OneStop; }else if(ui->stopCb->currentText() == "1.5") { stopbits = QSerialPort::OneAndHalfStop; }else if(ui->stopCb->currentText() == "2") { stopbits = QSerialPort::TwoStop; } if(ui->checkCb->currentText() == "none") { checkBits = QSerialPort::NoParity; } serialport->setPortName(ui->serialCb->currentText()); serialport->setBaudRate(baudRate); serialport->setDataBits(databits); serialport->setStopBits(stopbits); serialport->setParity(checkBits); if(serialport->open(QIODevice::ReadWrite)==true) { QMessageBox::information(this,"提示","成功"); }else{ QMessageBox::critical(this,"提示","失败"); } } void Widget::on_closeBt_clicked() { serialport ->close(); } void Widget::on_sendBt_clicked() { serialport ->write(ui->sendEdit ->text().toLocal8Bit().data()); } void Widget::on_clearBt_clicked() { ui->recvEdit ->clear(); }