1, as shown in the figure, create a new blank file with Photoshop.
2. As shown in the figure, choose to use the custom shape tool.
3. As shown in the figure, set the custom shape tool to "Shape", and then select the Jiugong grid in the shape diagram.
4. As shown in the figure, dragging the mouse in the blank can quickly draw a figure of nine squares.
5. As shown in the figure, you can also click on the blank space, and then a prompt box for creating a custom shape will pop up. In the prompt box, if the width and height are values, you can also quickly create a nine-square grid diagram.