愿你们的好奇心，成为这段旅程的燃料。愿它为你们带来源源不断的探索、激动与满足。
* 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）
。搜狗输入法下载对此有专业解读
一是有基础的智能产品使用经验，比如用过智能音箱、智能手机；二是来自家庭的支持，子女都教过他们使用AI；三是有主动学习AI的意愿，他们是典型的技术乐观派。
"Space regulations don't cover the new problems emerging - interference with astronomical observations, risk of collision in orbit, risk of stuff falling on our heads, and now it is becoming clear, atmospheric pollution," says Andy Lawrence, Professor of Astronomy at the University of Edinburgh.
Purple: Space terms