在大部份时候，控制器是一个委托且可以实作各种委托协议，以便可以接收来自多个物件的事件。

In many cases, a controller is a delegate and can implement several delegate protocols to receive events from multiple objects.

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设计阶段实作提供的图示会覆写控制项执行阶段组件中的预设图示。

The icons provided by the design-time implementation override the default icon in the control's runtime assembly.

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而您决定实作扑克牌自订控制项，并且在扑克牌自订控制项的资源中定义52种笔刷(每个都代表一种卡面)。

You decide to implement a card custom control and you define 52 brushes (each representing a card face) in the resources of your card custom control.

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