2. Select Endnote in the dialog box, Automatic Numbering as the numbering method, and Section End or Document End as the location.
3. If AutoNumber is not Arabic numerals, select Options in the lower right corner and select Arabic numerals in the numbering format.
4. After confirmation, insert a superscript "1" here, and the cursor will automatically jump to the end of the article, which is preceded by a superscript "1", which is where the first reference is entered.
It looks complicated, but it's actually very simple to operate once.