* 核心功能：每次调用next(val)，返回当前价格的跨度（往回数≤当前价格的最大连续天数）
Montgomery stressed that the model is intentionally issuer‑agnostic and composable: if two developers share trust in different issuers, they can still find overlapping trust paths, and the more independent issuers exist, the stronger the overall system becomes.
。关于这个话题，Line官方版本下载提供了深入分析
What is gambling, anyway?，这一点在safew官方下载中也有详细论述
五年前霸榜的多肉葡萄，如今热度不再，核心原因就是消费者越来越专业：水果店增多后，大家不再接受20元一杯的葡萄饮品，曾经靠单一食材就能打造爆款的时代已经过去。
