问Qt QProcess断续读取标准输出

EN

void MainWindow::startPing()
{
    auto p = new QProcess(this);

    connect(p, &QProcess::readyReadStandardOutput, this, &MainWindow::procStdout);
    connect(p, static_cast<void(QProcess::*)(int)>(&QProcess::finished), this, &MainWindow::procFinished); // workaround for overloaded 'finished' name

    p->start("C:\\windows\\system32\\ping.exe", "127.0.0.1");
}

void MainWindow::procStdout()
{    
    ui->textEdit->append("readyReadStandardOutput");
    auto msg = p->readAllStandardOutput();
    ui->textEdit->append(QString::fromUtf8(msg));
}

void MainWindow::procFinished()
{
    ui->textEdit->append("finished");
}