口袋：iPhone（算力核心+网关）。
Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
，详情可参考同城约会
在一家体验工坊里，返乡创业的李志华正对着手机直播，屏幕那头，是对乡村文化好奇的网友，屏幕这端，研学团队的孩子们正在体验刷墨、拓印。
Now that we have the above interfaces, we can use them when writing a Rust program that compiles to a WebAssembly Component: