2. Click Cross Reference on the Insert menu.

3. In the Reference Type box, click Footnotes or Endnotes.

4. In the "Which footnote is referenced" or "Which endnote is referenced" box, click the annotation you want to reference.

5. In the Quoted Content box, click the Footnote Number or Endnote Number option.

Click the Insert button, and then click the Close button.

The marking method of references in this paper;

1, according to the order of the cited documents, it is coded continuously with Arabic characters, and the serial number is placed in square brackets;

2. When multiple documents are cited in the same place, the serial numbers of all documents are listed in square brackets, with ","between each serial number;

3. If it is a continuous serial number, you can mark the beginning and end of the number "_".

4. The same document has been cited for many times in the treatise, and the number is only 1. The cited page number is placed outside "[]", and the page number is not repeated in the literature list.