同一组放置两次

1# Gallery: containers / group-reuse2page = canvas(name="Reusable group", size=(120 mm, 80 mm), background="#f7f9fc")3font = "DejaVu Sans"4heading = text(content="Reusable group", font_family=font, font_size=14 pt, color="#203864")5page.add(heading, target=page.top_left, offset=(7 mm, 5 mm))6# BEGIN DEMO7card = group()8base = card.add(rect(size=(38 mm, 28 mm), border_radius=3 mm, fill="#d8f0ec",9                     border_color="#087f8c", border_width=0.5 mm), target=card.top_left)10card.add(ellipse(size=(10 mm, 10 mm), fill="#f2ab47"),11         anchor=center, target=base.center)12first = page.add(card, target=page.top_left, offset=(8 mm, 30 mm))13page.add(card,size=(52 mm, 38 mm), target=first.top_right,14         offset=(11 mm, -3 mm))15# END DEMO