① start the PowerPoint2013, click the menu bar-insert-shape, select the square corner rectangle, and draw it in the picture.
② draw a good rectangle, put it in the right place, as shown in the following figure.
③ then click the menu bar again--insert--shape, select Elbow Connector.
④ the rectangle with a connector, we move, the rectangle will appear small dots, we only need to contact the point of the dots can be placed upright.
⑤ctrl+a All selected graphics, click Format--style, select a style to apply to the graphic.
⑥ continues to set the line weight to 4.5 points in the Contour fill option.
⑦ Finally, in the format-arrange-alignment option, the alignment is selected as a horizontal distribution.
⑧, let's take a look at the ladder-like structure I have made. Little make up, and that's it.