When writing a catalogue of papers, we should first reflect the author's writing intention, that is to say, we should have the eyebrows and the main idea of the article. Thesis titles are generally divided into general standards, sub-standards and sub-standards. A paper with subtitles will have many levels of content, and the whole theoretical system will be huge and particularly complicated, so it is usually necessary to establish a catalogue. The purpose of setting up this catalogue is mainly to let readers have a general understanding of the content structure of the full text before reading this article, which is convenient for readers to judge whether to read deeply or lightly, and also to choose a point in the paper more conveniently.
The table of contents should first be placed in front of the main body of the paper, as the guide map of the whole paper. First of all, this table of contents must be accurate and consistent with the outline of the full text. Headings and subheadings correspond to the table of contents. The catalogue must be clearly numbered. The table of contents must be complete when writing, because it is the guide map of the whole paper, so it must be complete, that is to say, all the contents in the article must be reflected in the table of contents, and there can be no omissions. There are generally two ways to express the catalogue, one is to use words, the other is to use numbers, but there are fewer digital catalogues.