According to different communication fields, what are the four types of writing styles?

1, official document style: based on stylized writing style, used for transactional and legislative official documents. Clarity, conciseness and standardization are the basic requirements of this style. Legal documents, government documents, resolutions, contracts, certificates and other fixed procedures and idioms form the stylistic characteristics of this style. The specific characteristics of language are: there are a large number of special words (politeness, loyalty, cheerfulness, obedience, appointment, dismissal, audit, notification, investigation and punishment, on this occasion, etc.). ), more declarative sentences and imperative sentences are used, and rendering figures of speech are rarely used, so the style tends to be concise, simple and lively. 2. Scientific style is also called "intellectual style" and "rational style". It was formed to meet the needs of science and technology. Accuracy, preciseness and conciseness are the language requirements of this style. Its specific language features are: extensive use of professional terms, charts, symbols and abbreviations, constant absorption of foreign words and international common words, and more use of well-structured declarative sentences, compound sentences and related words. Rhetoric is mainly passive, that is, exaggerated figures of speech (such as metaphor, analogy, exaggeration, setting off, etc.) are seldom used. 3. Political Style The so-called political style refers to a critical style that discusses social and political issues, political events, social and cultural phenomena, and social morality. Its main features are strong publicity and rigorous logic. Language features are: a large number of words are used, new words and sentences are used in time, and declarative sentences, imperative sentences and complex sentences are often used. Rhetorically, rhetorical devices are often used. Present a rigorous and solemn style. 4. Literary style refers to the style of oral and written literary works. Its basic characteristics are imagery, lyricism and aesthetic feeling. Generally divided into prose style, rhyme style and drama style. 1) Prose refers to the style used in novels, essays, close-ups and other styles. It is characterized by the diversity of language materials and rhetorical methods, which is almost unlimited. 2) Rhyme refers to the style used in rhyme such as poetry, lyrics and Allegro. Its characteristics are: language emphasizes rhythm and rhythm and is full of musical beauty; Words and sentences are very flexible. 3) Drama style refers to the style used in drama, traditional opera and local opera. Its language features are: personalization, colloquialism and action.