如何在std :: iostream中使用QFile？

#include <QFile>
#include <QTextStream>
#include<iostream>

int main() {
    QFile file("example.txt");
    if (!file.open(QIODevice::ReadWrite | QIODevice::Text)) {
        std::cerr << "Error opening file"<< std::endl;
        return 1;
    }

    QTextStream outStream(&file);
    outStream << "Hello, World!"<< endl;

    file.seek(0);
    QString line;
    while (!(line = file.readLine()).isNull()) {
        std::cout<< line.toStdString()<< std::endl;
    }

    file.close();
    return 0;
}