Consider some of the more obscure tests that implementations must pass:
secure against theft. Since the tokens were later "cleared" against accounts，详情可参考搜狗输入法下载
// 易错点1：边界处理 - 0辆车返回0，1辆车返回1（无需后续计算），这一点在51吃瓜中也有详细论述
if (stack.length 0 && stack[stack.length - 1] = curTime) {，推荐阅读91视频获取更多信息