Cyber language is an unofficial form of language on the Internet. It often uses some special grammar and rhetorical devices to make it look more vivid, concise, and easy to understand. The following are some common online rhetorical devices: 1. Ellipses: Ellipses can be used to express emotions such as emphasis, ellipsis, repetition, etc. For example, ellipses + exclamation marks indicate a strong exclamation and emphasis on something; ellipses + full stop indicate emphasis and summary of a sentence. 2. Bold: Bold can be used to highlight the main points of the text. For example, a word, phrase, or entire sentence can be bolded to make it easier to recognize and read. 3. Idiots: Idiots can be used to express a special font style. For example, to turn a word or phrase into an oblique font to indicate emphasis or uniqueness. 4 Underlining: Underlining can be used to indicate some kind of annotation or explanation. For example, an underlining of a word or phrase indicates that the word or phrase requires special attention or explanation. 5. Exclamation mark: Exclamation mark can be used to express strong emotions or tone. For example, exclamation mark + a word indicates a strong reaction or exclamation to something. 6. Question mark: A question mark can be used to express a certain question or inquiry. For example, a question mark + a certain word indicates a question or inquiry about a certain thing. Ellipses + full stop: This combination can be used to express some kind of ellipsis or summary. For example, an ellipsis + full stop indicates an ellipsis or summary of something. The above are just some common rhetorical devices in online language. The use of online language is more flexible and diverse. Various rhetorical devices can be selected and used according to different context and purposes.