程序運行截圖如下：

虛擬串口設置如下：

源碼如下：

SerialDemo.pro

QT += core serialport QT -= guiCONFIG += c++11TARGET = SerialDemo CONFIG += console CONFIG -= app_bundleTEMPLATE = appSOURCES += main.cpp# The following define makes your compiler emit warnings if you use # any feature of Qt which as been marked deprecated (the exact warnings # depend on your compiler). Please consult the documentation of the # deprecated API in order to know how to port your code away from it. DEFINES += QT_DEPRECATED_WARNINGS# You can also make your code fail to compile if you use deprecated APIs. # In order to do so, uncomment the following line. # You can also select to disable deprecated APIs only up to a certain version of Qt. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0

main.cpp

#include <QCoreApplication> #include <QSerialPort> #include <QDebug>int main(int argc, char *argv[]) {QCoreApplication a(argc, argv);QSerialPort serial;serial.setPortName("com4");if(!serial.open(QIODevice::ReadWrite)){qDebug() << "open failed";return -1;}serial.write(QString("1234567abcdefg").toStdString().c_str());if (serial.waitForBytesWritten()) {if (serial.waitForReadyRead()) {QByteArray responseData = serial.readAll();while (serial.waitForReadyRead(10))responseData += serial.readAll();QString response(responseData);qDebug() << response;}}return a.exec(); }

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