1. Open the PPT software on your computer, select a new document, and in the "Insert" option in the menu bar, click to select smartart graphics.

2. Many graphics will appear at this time. Choose one you like, click OK, and then quit.

3. After you confirm and exit, the system default structure diagram has been automatically inserted into the document. At this point, enter the text into the structure diagram.

4. Select the structure diagram you inserted. You can change the color by selecting the appropriate color in the "Change Color" option above to make your tree view more beautiful.

5. Complete the above steps. At this point, the tree diagram you need is ready.