Qt: 播放音頻檔案

Qt播放音頻檔案，遇到點問題。

舊文一篇：

#include "QMediaPlayer"

QMediaPlayer* player = new QMediaPlayer;

QString audioPath = QDir::currentPath() + "/audio/hint.wav";
G::player->setMedia(QUrl::fromLocalFile(audioPath));
G::player->setVolume(100);
G::player->play();