Qt 滚动窗口类

 1  {
 2     QScrollArea *scrollArea = new QScrollArea(this);
 3     scrollArea->setFrameStyle(0);
 4     scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 5     scrollArea->setWidgetResizable(true);
 7     QWidget* container = new QWidget(scrollArea);
 8     scrollArea->setWidget(container);
 9     container->setMinimumHeight(900);
10 }

 Qt 界面中使用QScrollArea类实现窗口滚动，