(1) first-level title (chapter, such as "1", you can also use "one")

(2) Secondary titles (sections, such as "1. 1", can also be used as "(1)".

(3) Three-level title (section, such as "1.1",or "1")

(4) Four-level titles (sections within a section, such as "1. 1. 1" or "(1)")

Format requirements of papers

Title: Be concise, clear and general, with no more than 20 words.

Abstract: The language should be concise and clear, and the Chinese abstract should be about 100-200 words.

Keywords: choose 3 ~ 5 words that can best express the main content from the title or text of the paper as keywords.

Table of contents: write the table of contents and indicate the page number.

Text: Generally, the number of words in the text of a university graduation thesis should be more than 3,000 words. Text of graduation thesis: including preface, thesis and conclusion. The preface is the first part of the paper, which mainly explains the purpose, practical significance and understanding of the research problems, and puts forward the central argument of the paper. The preface should be concise, not too long.