#include "mainwindow.h"#include <QApplication>#include <QListWidget>#include <QListWidgetItem>#include <QDebug>int main(int argc, char *argv[]){    QApplication a(argc, argv);    QListWidget list;    QString str;    QListWidgetItem *item[9];    for(int i = 0 ;i <8 ; i++)    {        str.sprintf(":/res/%1d.png",i+1);        qDebug()<<str<<endl;        item[i] = new QListWidgetItem(QIcon(str),str);        list.addItem(item[i]);    }    list.setIconSize(QSize(256,256));    list.setViewMode(QListView::IconMode);    list.show();    return a.exec();}