Овечкин продлил безголевую серию в составе Вашингтона09:40
Wikipedia calls it DTD-1 for some reason, but IBM sources consistently
，更多细节参见heLLoword翻译官方下载
每轮遍历后，最大元素会"冒泡"到末尾
Stateful transforms are simple objects with member functions that maintain state across calls: