Qt演示单继承传递参数

#include "mainwindow.h"
#include <QApplication>
#include<Windows.h>

class ye
{
public:
    ye(int a,int b):x(a),y(b)
    {
       p= new MainWindow;
       p->resize(this->x,this->y);
       p->show();
    }
    ~ye()
    {
      delete p;
    }

public:
     MainWindow *p;
     int x;
     int y;//宽度与长度
};

class die:public ye
{
public:
    die(int a,int b,int c,int d):ye(a,b),cx(c),cy(d)
    {
           this->p->move(cx,cy);
    }
    ~die()
    {

    }

public:
    int cx;
    int cy;//位置，x,y坐标
};

class er:public die
{
public:
    er(int a,int b, int c,int d, int e):die(a,b,c,d),size(e)
    {
       for(int i=0;i<size;i++)
       {
           this->p->resize((this->x)*(i+1),(this->y)*(i+1));
             Sleep(1000);
       }
    }

public:
     int size;
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    er *p =new er(100,100,0,0,8);

    return a.exec();
}