演示 MultiEffect 用法。
此范例演示 MultiEffect type, which offers a simple, efficient solution for applying effects such as blur, drop shadow, or colorize to an Item and its children.
要运行范例从 Qt Creator ，打开 欢迎 模式，然后选择范例从 范例 。更多信息，见 Qt Creator：教程：构建并运行 .
范例工程 @ code.qt.io
运行范例
