Qt进程间通信——QProcess

简介

execute：阻塞运行
start：异步运行
delete process时，调用的exe结束进程

代码

调用进程

#include "widget.h"
#include "ui_widget.h"
#include <QProcess>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
}

Widget::~Widget()
{
    if(m_process != nullptr)
    {
        delete m_process;
        m_process = nullptr;
    }
    delete ui;
}

void Widget::on_pushButton_clicked()
{
    m_process = new QProcess(this);
    QStringList list;
    list.append("aaaa");
    m_process->start("test.exe",list);
}

测试进程

#include "widget.h"

#include <QApplication>
#include <QtDebug>
#include <QMessageBox>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QStringList list = QCoreApplication::arguments();
    qDebug() << list;
    return a.exec();
}