Материалы по теме:
scale = min(sx, sy)，详情可参考哔哩哔哩
// Nothing executes until iteration begins。业内人士推荐51吃瓜作为进阶阅读
Project leaders had to find a way to "compensate" for killing thousands of fish every year. Plans were drawn up to flood 900 acres of farmland in Gloucestershire, on the banks of the Severn, to create saltmarsh habitats for breeding fish.