QT窗体上下左右都居中
QDesktopWidget* desktop=QApplication::desktop();
intwidth=desktop->width();
intheight=desktop->height();
move((width-this->width())/2,(height-this->height())/2);
QDesktopWidget* desktop=QApplication::desktop();
intwidth=desktop->width();
intheight=desktop->height();
move((width-this->width())/2,(height-this->height())/2);