WhyCan Forum(哇酷开发者社区)

#include <QObject>
#include <QCoreApplication>
#include <QDebug>
#include <QFileSystemWatcher>

using namespace QObject;

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QFileSystemWatcher watcher;
    watcher.addPath("/dev");

    QObject::connect(&watcher, &QFileSystemWatcher::directoryChanged, [] (const QString &path) {
        qDebug() << "Directory" << path << "has changed.";
        // 在这里检查/dev目录下的文件变化
    });

    return a.exec();
}