1. Select all the first-level titles in the article (such as Chapter 1, Chapter 2, etc.). ).

2. Click "Title 1" in the style list.

3. Step 1, 2 Set the format of the secondary title (such as section 1. 1, section 1.2, etc.). ) as title 2. If there is a three-level title, it is set to title 3, and so on. It should be noted that after changing the title style, the line spacing, font size and the values before and after the paragraph may change accordingly. If there are requirements, such as graduation thesis, it needs to be re-set.

Automatically generate directory:

1. Position the cursor at the 1 character in the first line of page 1 of the text (that is, where you want to insert the directory).

2. Execute the menu command "Insert-Reference-Index and Directory" to open the "Index Directory" dialog box;

3. Click the "Directory" tab in the dialog box, make relevant settings (generally not set here), and then click "OK" to automatically generate the directory. (generate? After the table of contents, if there are some changes in the paper, the page number may change. At this time, just click the directory to select it, and right-click the pop-up menu to select "Update Domain" to update the entire directory. No need to modify it yourself)