Qt Q_DECL_OVERRIDE

Posted 2020-12-09 ybqjymy

Q_DECL_OVERRIDE也就是c++的override

# define Q_DECL_OVERRIDE override

在重写虚函数时会用到，

作用是防止写错虚函数：

void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;