在一個精美的框架中列出兩列

Question

我正在玩一點lstlistings我想知道我的所有清單是否都可以實現這樣的目標：

如何實現這樣的事情呢？

注意：我正在尋找一個可以應用於我的所有清單的解決方案（例如透過定義一個新命令），並且它將自動平衡兩列...

Answer 1

這listings包可以很好地與multicol包很好地交互。框架的內容是在它的幫助下完成的tcolorbox，反過來，它可以很好地與listings.好像是傳遞性的！

突出顯示數字的想法來自貢薩洛的回答。

\documentclass[landscape]{article}
\usepackage[margin = 2cm, includeheadfoot]{geometry}
\usepackage{lmodern}
\usepackage{multicol}
\usepackage{tcolorbox}
\tcbuselibrary{skins,listings}
\newtcblisting{mycpptwocol}[1][]{%
  enhanced,
  arc = 0pt,
  outer arc = 0pt,
  colback = blue!5,
  colframe = blue!50!black,
  listing only,
  fonttitle = \bfseries,
  listing options = {%
    language = C++,
    basicstyle = \ttfamily,
    multicols = 2,
    numbers = left,
    xleftmargin = 1em,
    showstringspaces = false,
  },
  overlay = {%
    \fill[gray!30] 
      (interior.north west)
      rectangle 
      ([xshift = 2em]interior.south west);
    \fill[gray!30] 
      ([xshift = -1em]interior.north)
      rectangle 
      ([xshift = 1em]interior.south);
    \draw[ultra thick, blue!50!black]
      ([xshift = -1em]interior.north) -- 
      ([xshift = -1em]interior.south); 
  },
  /utils/exec = {%
    \def\thelstnumber{%
      \texttt{\csname two@digits\endcsname{\the\value{lstnumber}}}}},
  title = {\centering\ttfamily #1}
}
\begin{document}

\begin{mycpptwocol}[helloworld.cpp]
#include <iostream>

int main()
{
    std::cout<<"Hello World``;
    return 0;
}
// This is a second column, just
// for fun !!!
\end{mycpptwocol}
\end{document}

編輯根據要求，帶有兩個前導零的版本。僅供參考，\two@digits它是一個LaTeX核心巨集（請參閱texdoc source2e）並且\three@digits不存在（因此我定義了它，但您可能再次遇到一些問題\makeatletter）。

\documentclass[landscape]{article}
\usepackage[margin = 2cm, includeheadfoot]{geometry}
\usepackage{lmodern}
\usepackage{multicol}
\usepackage{tcolorbox}
\tcbuselibrary{skins,listings}
\makeatletter
\def\three@digits#1{\ifnum#1<10 00\else\ifnum#1<100 0\fi\fi\number#1}
\makeatother
\newtcblisting{mycpptwocol}[1][]{%
  enhanced,
  arc = 0pt,
  outer arc = 0pt,
  colback = blue!5,
  colframe = blue!50!black,
  listing only,
  fonttitle = \bfseries,
  listing options = {%
    language = C++,
    basicstyle = \ttfamily,
    multicols = 2,
    numbers = left,
    xleftmargin = 1.5em,
    showstringspaces = false,
  },
  overlay = {%
    \fill[gray!30] 
      (interior.north west)
      rectangle 
      ([xshift = 2.5em]interior.south west);
    \fill[gray!30] 
      ([xshift = -1em]interior.north)
      rectangle 
      ([xshift = 1.5em]interior.south);
    \draw[ultra thick, blue!50!black]
      ([xshift = -1em]interior.north) -- 
      ([xshift = -1em]interior.south); 
  },
  /utils/exec = {%
    \def\thelstnumber{%
      \texttt{\csname three@digits\endcsname{\the\value{lstnumber}}}}},
  title = {\centering\ttfamily #1}
}
\begin{document}

\begin{mycpptwocol}[helloworld.cpp]
#include <iostream>

int main()
{
    std::cout<<"Hello World``;
    return 0;
}
// This is a second column, just
// for fun !!!
//
\end{mycpptwocol}
\end{document}