2. Sub-title of the paper: No.2 small font, centered immediately below the main title, with dashes in front of the main text.

3. Name, major and student number: No.3 in italics.

4. Summary: No.3 is in bold, with a middle line and a top and bottom line, and the content is small No.4 in italics.

5. Keywords: No.4 bold, with small content.

6. Add a page to the catalogue: No.3 in bold, No.4 in small imitation of Song, and list the page numbers.

7. Start a new page of text: the title of the paper is in bold No.3, and the text is generally in small No.4, with two spaces at the beginning of each paragraph, with single spacing.

8. Title of the text:

First-class title: the title number is "I", No.4 is in bold, exclusive, and there is no punctuation at the end.

Second-level title: the title serial number is "(1)", which is the same as the font size of the text, and it is a dedicated line with no punctuation at the end.

Third-level title: the title serial number is "1." , the same font size and font as the text. Four-level title: the title serial number is "(1)", which is the same as the text size and font. Five-level title: the title serial number is "①", which is the same as the font size and font of the text.

9. Note: No.4 is in bold, and the content is No.5 Song Style.

10, Appendix: No.4 bold, with the content of No.5 Song.