此 QML 模块包含用于创建顶层窗口和访问屏幕信息的类型。
要使用此模块中的类型，采用以下行 import 模块：
import QtQuick.Window 2.2
| Screen | Attached object provides information about the Screen an Item or Window is displayed on |
| CloseEvent | Notification that a Window is about to be closed |
| Window | 创建新的顶层窗口 |
