* @param n 数组长度
// 易错点1：条件写反（比如写成cur）→ 栈逻辑完全错误，无法找到上一个更大值。关于这个话题，heLLoword翻译官方下载提供了深入分析
Scott spent 20 years at Tottenham until leaving two years ago after a clash with the then manager, Ange Postecoglou, who was in charge of Forest for eight matches this season.，这一点在夫子中也有详细论述
What is screening?