Your plugin can specify that one or more of its PHP functions are executed at these points, using the Action API.

使用Action API，你的插件可以在这些特殊点执行一个或者多个在插件中编写的PHP函数。

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All of the API convenience functions are equivalent to using purify_watch_n with the appropriate address, size, and type.

所有便利函数都等价与使用带有合适地址，大小，以及类型的purify_watch_n。

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