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}