QList 无法从XXX * 转化为 const Plane & [复制链接]

Plane *plane = new Plane;
        scene->addItem(plane);
        plane->setPos(0,0);
        listPlaneAir->append(plane);

PlaneNew *plane1=new PlaneNew;
        plane1->setPos(-200,200);
        scene->addItem(plane1);
        listPlaneLand->append(plane1);

        connect(this,SIGNAL(valueChanged(int)),listPlaneAir->first(),SLOT(setSpeed(int)));
        connect(this,SIGNAL(valueChanged(int)),listPlaneLand->first(),SLOT(setSpeed(int)));

报错
1>.\airport.cpp(28) : error C2664: 'QList<T>::append' : cannot convert parameter 1 from 'Plane *' to 'const Plane &'
1>.\airport.cpp(33) : error C2664: 'QList<T>::append' : cannot convert parameter 1 from 'PlaneNew *' to 'const PlaneNew &'
1>.\airport.cpp(35) : error C2664: 'bool QObject::connect(const QObject *,const char *,const QObject *,const char *,Qt::ConnectionType)' : cannot convert parameter 3 from 'Plane' to 'const QObject *'
1>.\airport.cpp(36) : error C2664: 'bool QObject::connect(const QObject *,const char *,const QObject *,const char *,Qt::ConnectionType)' : cannot convert parameter 3 from 'PlaneNew' to 'const QObject *'

其中listPlaneAir为QList<Plane>
listPlaneLand为QList<PlaneNew>

listPlaneLand->append(plane1);  改成
listPlaneLand->append((*plane1));

你要搞清楚，参数的定义到底是指针，还是引用，还是。。。。。

        

        

谢谢大哥

这个很有也可能少了头文件吧！