The basic characteristics are concise language and propaganda.
1. Posting location: write it on paper or on the wall.
2. Expression of words: easy to understand, vivid and accurate, cordial and touching, lively and lively. 3. Sentence pattern characteristics: adopt encouraging declarative sentences or exclamatory sentences.
4. Rhetorical requirements: Use common rhetorical devices such as comparison, metaphor, personification and parallelism to make it endless.
5. Punctuation requirements: Finally, punctuation is generally not used, and sometimes periods or exclamation points can be used.
6. Content requirements: create an atmosphere, create momentum, publicize and encourage the masses, and mobilize everyone to participate.