命令 \mybox 已定义

Question

以下代码失败并出现错误

! LaTeX Error: Command \mybox already defined.
               Or name \end... illegal, see p.192 of the manual.



 \usepackage[most]{tcolorbox}

\newtcolorbox{mybox}[2][]{%
    colback=bg,
    colframe=blue!75!black,
    fonttitle=\bfseries,
    coltitle=blue!75!black,
    colbacktitle=bg,
    enhanced,
    attach boxed title to top left={yshift=-1.2mm, xshift=2mm},
  title=#2,
  #1}

%--------------------

\usepackage{fancybox} %pour faire l'encadrement
\newcommand{\mybox}[1]{
\setlength{\fboxsep}{7pt}
\begin{center}
\shadowbox{#1}
\end{center}}

%--------------------

请你帮助我好吗

Answer 1

您只需将 \mybox 替换为例如 \cadre 即可：

    \usepackage[most]{tcolorbox}

    \newtcolorbox{mybox}[2][]{%
    colback=bg,
    colframe=blue!75!black,
    fonttitle=\bfseries,
    coltitle=blue!75!black,
    colbacktitle=bg,
    enhanced,
    attach boxed title to top left={yshift=-1.2mm, xshift=2mm},
  title=#2,
  #1}

%--------------------

\usepackage{fancybox} %pour faire l'encadrement
\newcommand{\cadre}[1]{
\setlength{\fboxsep}{7pt}
\begin{center}
\shadowbox{#1}
\end{center}}

%--------------------