QT之需不需要delete

QMenu *menu = ui.pushButtonl->getMenuO;
menu->resize(105, 200);
QIcon icon1(":/image/1.png");
QPushButton *action_x1 = new QPushButton(menu);
action_x1->resize(94.27);
QWidgetAction *action1 = new QWidgetAction(this);
action_x1->setIcon(icon1);
action_x1->setIconSize(QSize(94, 27));
action1->setDefaultWidget(action_x1);
menu->addAction(action1);
// 添加delete操作
delete action_x1;
delete action1;

QIcon icon2(":/image/2.png");
QPushButton *action_x2 = new QPushButton(menu);
action_x2->resize(94, 27);
QWidgetAction *action2 = new QWidgetAction(this);
action_x2->setIcon(icon2);
action_x2->setIconSize(QSize(94, 27));
action2->setDefaultWidget(action_x2);
menu->addAction(action2);
// 添加delete操作
delete action_x2;
delete action2;

QIcon icon5(":/image/5.png");
QPushButton *action_x5 = new QPushButton(menu);
action_x5->resize(94, 27);
QWidgetAction *action5 = new QWidgetAction(this);
action_x5->setIcon(icon5);
action_x5->setIconSize(QSize(94, 27));
action5->setDefaultWidget(action_x5);
menu->addAction(action5);
// 添加delete操作
delete action_x5;
delete action5;

// 最后需要删除menu对象
delete menu;