Qt5 程序启动画面图片效果

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();
};

#endif // MAINWINDOW_H

#include "mainwindow.h"
#include <QTextEdit>
#include <windows.h>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    setWindowTitle("Example");
    QTextEdit *edit=new QTextEdit;
    edit->setText("Qt sb!");
    setCentralWidget(edit);
    resize(600,450);
    Sleep(5000);
}

MainWindow::~MainWindow()
{

}

#include "mainwindow.h"
#include <QApplication>
#include <QPixmap>
#include <QSplashScreen>
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QPixmap pixmap(":/new/prefix1/4");
    QSplashScreen  splash(pixmap);
    splash.show();
    a.processEvents();
    MainWindow w;
    w.show();
    splash.finish(&w);
    return a.exec();
}