![使用文本创建侧边框](https://linux22.com/image/340091/%E4%BD%BF%E7%94%A8%E6%96%87%E6%9C%AC%E5%88%9B%E5%BB%BA%E4%BE%A7%E8%BE%B9%E6%A1%86.png)
答案1
也许你可以使用tikz-页面:
\documentclass[a4paper]{article}
\usepackage{tikz-page}
\usepackage{xltxtra}
\usepackage{calc}
\usepackage{multicol}
\usepackage{lipsum}
\usepackage[margin=1.5cm]{geometry}
\pagestyle{plain}
\newcommand{\tikzpagelayout}{
\node [red, rotate=90] (t) at (page.left north) {MYTEXT};
\draw (t) -- (page.left south);
}
\begin{document}
\begin{multicols}{3}
\lipsum[1-9]
\end{multicols}
\end{document}