slotsconfig::slotsconfig(QMap<QString, QPair<QString, int> > &remoteHosts, QWidget *parent) :
hosts(&remoteHosts),
QDialog(parent),
ui(new Ui::slotsconfig)
{
qDebug() << "初始化通道配置界面";
ui->setupUi(this);
qDebug() << "init" << hosts << &hosts;
qDebug() << hosts->count();
qDebug() << hosts->value(QString("slot1"));
}
在构造函数里可以正常访问hosts
结果:
init 0x28cc80 0xdc50c88
6
QPair("169.254.1.21",7801)
void slotsconfig::on_pushBtnAdd_clicked()
{
qDebug() << "addHost" << hosts << &hosts;
qDebug() << hosts->count();
qDebug() << hosts->value(QString("slot1"));
}
但是在别的函数里却不用访问,返回的count是个垃圾数,每次都不一样
结果:
addHost 0x28cc80 0xdc30d00
1777082668
我想问下hosts这个指针是什么时候变的,要怎么要才能让它不变??
类的头文件:
class slotsconfig : public QDialog
{
Q_OBJECT
public:
explicit slotsconfig(QMap<QString, QPair<QString, int> > &, QWidget *parent = 0);
~slotsconfig();
void rePaint();
private slots:
void on_pushBtnCancel_clicked();
void on_pushBtnAdd_clicked();
void on_pushBtnDel_clicked();
private:
Ui::slotsconfig *ui;
QMap<QString, QPair<QString, int> > *hosts;
};