新人也来学习
01.//main.cpp
02.#include <QtGui/QApplication>
03.#include "mainwindow.h"
04.#include <QDeclarativeEngine>
05.#include <QDeclarativeComponent>
06.#include <QDeclarativeItem>
07.#include <QDebug>
08.int main(int argc, char *argv[])
09.{
10. QApplication a(argc, argv);
11. QDeclarativeEngine *engine = new QDeclarativeEngine;
12. QDeclarativeComponent component(engine, QUrl::fromLocalFile("main.qml"));
13. QObject *myObject = component.create();
14. QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(myObject);
15. qDebug()<<item->width();
16. item->setProperty("width",200);
17. qDebug()<<item->width();
18. return a.exec();
19.}