例如，控制组件可用于确定一个组中哪个表示组是活动的框架。

For example, the control component can be used to determine which presentation component in a group is the active frame.

youdao

例如，控制组件可用于确定一个组中哪个表示组是活动的框架。

For example, the control component can be used to determine which presentation component in a group is the active frame.

youdao