代码
QApplication a(argc, argv);
QFont f("黑体",12);
a.setFont(f);
查看支持的字体
{QFontDatabase database;foreach(const QString &family, database.families(QFontDatabase::SimplifiedChinese)){qDebug() << family;}}
参考
https://www.cnblogs.com/ybqjymy/p/13600645.html