换句话说，在门店随处可见的9块9商品，并没有拉低奥乐齐这个零售品牌本身的“调性”，对于年轻中产消费者，奥乐齐并不会让他们有便宜没好货的感觉。奥乐齐虽然外号叫穷鬼超市，去奥乐齐购物的人却也未必真的是“穷鬼”，并不是只挑9块9的商品下手。
:first-child]:h-full [&:first-child]:w-full [&:first-child]:mb-0 [&:first-child]:rounded-[inherit] h-full w-full。关于这个话题，爱思助手提供了深入分析
t.ndim // 3 — int (same as t.shape.len)These properties are useful for validating inputs, debugging shapes, and writing generic data-processing functions:，这一点在谷歌中也有详细论述
:first-child]:h-full [&:first-child]:w-full [&:first-child]:mb-0 [&:first-child]:rounded-[inherit] h-full w-full
We find the most elegant explanation in a paper from David Autor: