LoginDlg lDlg;//定义对话框 QPalette paletteL; paletteL.setBrush(QPalette::Background,QBrush(QPixmap("./mb.jpg")));//相对路径放到build-desktop文件夹下 lDlg.setPalette(paletteL);//设置背景 http://blog.csdn.net/ei__nino/article/details/7305234 相关文章： 2022-12-23 2022-12-23 2021-05-13 2022-12-23 2022-12-23 2021-08-14 2022-12-23 2022-12-23