I would like to ask everyone, what does a first-person perspective mean? And the second? And the third?

A first-person perspective refers to the point of view of the author or protagonist of the novel. The reader can directly feel the emotions and experiences of the author or protagonist, such as the "I" point of view in "Dream of the Red Chamber". The second person perspective refers to the point of view of the reader or the audience. The reader can participate in the story and analyze and reflect from the perspective of the protagonist or the author. The third person perspective refers to the third person perspective of the story, that is, no longer narrating the story as the protagonist or the author, but from the perspective of a third party. The reader can more objectively understand the occurrence and process of the event, such as the third person perspective in Water Margins.