他们中的大部分是用户不能理解的，这样的权限一般都被标记为普通的保护级别，所以他们一般不显示。
Many of these are not permissions the user will be expected to understand, and such permissions should generally be marked as "normal" protection level so they don't get displayed.
即使事件已标记为已处理，类别处理常式或执行个体处理常式还是可以注册或附加要叫用的选项，但是一般不建议您使用这种方法。
Class handlers or instance handlers can be registered or attached with an option to be invoked even if the event is marked handled, but that technique is not commonly used.
即使事件已标记为已处理，类别处理常式或执行个体处理常式还是可以注册或附加要叫用的选项，但是一般不建议您使用这种方法。
Class handlers or instance handlers can be registered or attached with an option to be invoked even if the event is marked handled, but that technique is not commonly used.
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