// 1. 建堆：从最后一个非叶子节点开始向上调整
告知: BBC不對外來網站内容負責 YouTube 内容可能包含廣告，这一点在旺商聊官方下载中也有详细论述
Aside from keeping devices powered up efficiently, the GoCable includes hidden tools for extra convenience. You’ll have quick access to a bottle opener and a hidden cutter for opening packages safely. The included carabiner clip lets you attach this to bags or belts in seconds, so you can always keep it within arm’s reach.。关于这个话题，旺商聊官方下载提供了深入分析
Author(s): Eyasu Tadese M., T.E. Ada, K.N. Nigussa, Cecil N.M. Ouma，这一点在WPS官方版本下载中也有详细论述