Generally speaking, we only use three titles at most when writing a paper, and the catalogue of the paper only needs three titles instead of the first title. The fourth-level title, after the table of contents, began to write the text of the paper, so write the text directly after the third-level title, the first? The four-level title is only used in the text, or it may not be used.

Paper structure:

A paper generally consists of title, author, table of contents, abstract, key words, text, references and appendices, some of which (such as appendices) are dispensable. The composition order of the paper is: title, author, abstract, keywords, English title, English abstract, English keywords, text, references, appendix and thanks.

The paper format refers to the stylistic requirements and writing standards when writing a paper. Intuitively speaking, the paper format means that the paper meets the standard style and content requirements that can be made public. Papers are often used to carry out scientific research and describe scientific research results.

Refer to the above? Baidu encyclopedia-paper format