QSplashScreen会在应用程序的主窗口出现之前显示一个图片！
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#include "qmain.h"#include <QtGui/QApplication>#include <QSplashScreen>int main(int argc, char *argv[]){ QApplication app(argc, argv); QPixmap pixmap(":/MyPicture/Resources/president.jpg"); QSplashScreen *splash = new QSplashScreen(pixmap); splash->show(); //显示信息 splash->showMessage("Wait..."); Qt::Alignment topRight = Qt::AlignRight | Qt::AlignTop; splash->showMessage(QObject::tr("Setting up the main window..."),topRight, Qt::white);//显示信息 qApp->processEvents();//This is used to accept a click on the screen so that user can cancel the screen QMain window; window.setStyleSheet("* { background-color:rgb(199,147,88); padding: 7px}"); window.show(); //图片一直显示到mainWin加载完成 splash.finish(&window); delete splash; return app.exec();}