* 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）
const reader = stream.getReader({ mode: 'byob' });
，详情可参考爱思助手下载最新版本
在万元级别的高端笔记本品类，一个触控屏几乎已经是标配，作为这个定位的明星产品，越来越多用户和消费者也在呼吁 MacBook Pro 增加触控屏配置。，更多细节参见同城约会
// Nothing stops you from doing this
PricingHypotenuse doesn’t offer a free plan. Instead, it offers a free trial period where you can take the software for a run before deciding whether it’s the right choice for you or not. Other than that, here are its paid options: