The writing format of a sub-title was generally as follows: 1. Parallel Subtitles: Two or more subtitles that are related in content and similar in structure are used to summarize the main content and key points of the article. 2. Jumping sub-titles: summarize different parts of the article in the form of "before" and "after" to make the article more layered. 3. Description Subtitle: Use concise and clear language to describe certain details or characters in the article to make the article more interesting. 4. A general sub-title: It sums up the overall content of the article so that the structure of the article is clearer and easier for readers to understand. 5. Question Subtitle: Use the form of a question to answer or explain some of the questions in the article to guide the reader to think. The writing format of the title should be concise, concise, and general. At the same time, it should pay attention to the structure and content of the article to make the article more complete and attractive.