Word20 16, computer.

1. find and double-click word20 16 software in the main interface of the computer;

2. After opening word20 16 software, edit the contents of the document at will for better demonstration;

3. After editing the selection, find and click the underlined "U" in the toolbar;

4. After clicking the underlined match, an underlined mark will appear below the edited text;

5. Move the mouse to the beginning of the rightmost underline, select two or three blank underscores, and copy the underscores with the shortcut key "Ctrl+C";

6. After copying the underline, use the shortcut key "ctrl+v" to paste the underline at the beginning of the text;

7. After the underline is pasted, you can adjust the text to the center through the "space bar" on the keyboard.