如何在 LaTeX 中制作定理框？

Question

早上好，

你能告诉我如何制作这个 LaTeX 框吗？因为我不会：

你的

Answer 1

请看看答案是否满足您的要求

引用自需要使用 mdframed 的奇特定理的帮助

\documentclass[12pt]{article}

\usepackage[many]{tcolorbox}
\newtcbtheorem[number within=section]{mytheo}{Theorem}{%
                            colback=white, 
                            colframe=blue!70,
                            fonttitle=\bfseries,
                            enhanced, 
                            sharp corners,
                            coltitle=blue!75!black,
                            attach boxed title to top left={%
                                            xshift=2ex,
                                            yshift=-4mm,
                                            yshifttext=-1mm},
                            boxed title style={%
                                            colframe=white,
                                            colback=white}}
                            {th}
\begin{document}
    \begin{mytheo}{This is my title}{theoexample}
        This is the text of the theorem. The counter is automatically assigned and,
        in this example, prefixed with the section number. This theorem is numbered with
        \ref{th:theoexample} and is given on page \pageref{th:theoexample}.
    \end{mytheo}
\end{document}