ChandelureIntroduced in Gen V (2010)
// CompletableFuture.Signaller（核心字段和方法）
，更多细节参见Line官方版本下载
The B.C. government says it is finally time to stop springing forward and falling back. As the CBC's Johna Baylon reports, it has decided to move to permanent daylight time for most of the province.。下载安装汽水音乐对此有专业解读
习题链接：LeetCode 581. 最短无序连续子数组，这一点在Line官方版本下载中也有详细论述