锁定规则防止编辑。
@Locked()
@Locked
@Locked attr fixedHeight = 10 @StartRule Lot --> primitiveCube(6, 0.2, 6) extrude(fixedHeight) comp(f) { top: Roof | side: Wall } Roof --> color(0.5, 0.25, 0.15) Wall --> color(0.75, 0.72, 0.68)