As you can see, this class exposes two methods and two events.

正如你所看到的，这个类公开了两个方法和两个事件。

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You can add as well as override properties, methods, and events of the base class.

可以添加和重写基类的属性、方法和事件。

youdao

You can add as well as override properties, methods, and events of the base class.

可以添加和重写基类的属性、方法和事件。

youdao