用途H

tcolorbox

\documentclass[uplatex, dvipdfmx, ja=standard, base=12pt, notitlepage, a4paper, draft]{bxjsarticle} \usepackage[T1]{fontenc} \usepackage{lmodern} \usepackage{mathtools} \newcommand{\sads}{\SwapAboveDisplaySkip} \usepackage{bm} \usepackage{…