我想输入一本页边距相对较宽的书，总是在左边，也就是“单面”。但是页码是“双面”，这意味着偶数页码在左边，奇数页码在右边。到目前为止，我得到了这个，但所有的页码都是单面的：
\documentclass[openany,oneside]{book}
\usepackage{blindtext}
\usepackage[showframe]{geometry} % <====================================
\geometry{%
paperheight=9.8125in,
paperwidth=8in,
left=.5in, right=.5in,top=.75in,bottom=.4375in
}
\usepackage{fancyhdr}
\fancypagestyle{plain}{%
\fancyhf{}
\fancyhead[EL,OR]{\textbf {\thepage}}
\renewcommand{\headrulewidth}{0pt}
}
\pagestyle{plain}
\renewcommand{\rmdefault}{pag}
\usepackage[utf8]{inputenc}
\usepackage[hyphens]{url}
\usepackage[authoryear,round]{natbib}
\newcommand{\titlefontarash}{%
\usefont{OT1}{pag}{b}{n}%
\fontsize{25}{\baselineskip}%
\selectfont%
}
\newcommand{\basefontarash}{%
\usefont{OT1}{pag}{b}{n}%
\fontsize{18}{\baselineskip}%
\selectfont%
}
\begin{document}
\title{\titlefontarash Helping each other}
\author{\basefontarash Good boy}
{ % <===================================================================
\maketitle
\let\clearpage\relax
\frontmatter
} % <===================================================================
\vspace*{\fill}
\begin{center}
\basefontarash To good...
\basefontarash To those good..
\end{center}
\vspace*{\fill}
\tableofcontents
\newgeometry{ left=2.75in, right=.5in } % <======================= ?????
\mainmatter
\fancypagestyle{plain}{%
\fancyhf{}
\fancyhead[OR]{\textbf {\thepage}\hspace*{2.25in}} % <================
\fancyhead[EL]{\textbf {\hspace*{2.25in}\thepage}} % <================
\renewcommand{\headrulewidth}{0pt}
}
\pagestyle{plain}
\chapter{Introduction}
\section{Introducing the fish}
\section{fox}
referring to \citet{Fish(1979)}.
A \textbf{fish} (or \textbf{cat}) jungle sky.
\section{river}
\Blinddocument
\chapter{Introduction2}
\section{Introducing the fish2}
\section{fox2}
\newgeometry{ left=.5in, right=.5in}
\fancypagestyle{plain}{\fancyhf{}\fancyhead[EL,OR]{\textbf
{\thepage}}\renewcommand{\headrulewidth}{0pt}}
\pagestyle{plain}
\begin{thebibliography}{9}
\bibitem[Fish(1979)]{Fish(1979)} Fish, Y(1979) \textit{orange HHH} New York:
hot.
\end{thebibliography}
\end{document}
答案1
关键思想是在开始时定义一次边距，然后使用“changepage”包中的“adjustwidth”来更改缩进。在“adjustwidth”环境中，可以根据定义的边距调整左右缩进：
\begin{adjustwidth}{leftmargin}{rightmargin}
在这种情况下：
\begin{adjustwidth}{2.25in}{0pt}
之前左边距是 0.5 英寸，现在增加了 2.25 英寸，得到 2.75 。以下是更正后的代码：
\documentclass[openany]{book}
\usepackage{changepage}
\usepackage{blindtext}
\usepackage[showframe]{geometry} % <====================================
\geometry{%
paperheight=9.8125in,
paperwidth=8in,
left=.5in, right=.5in,top=.75in,bottom=.4375in
}
\usepackage{fancyhdr}
\fancypagestyle{plain}{%
\fancyhf{}
\fancyhead[EL,OR]{\textbf {\thepage}}
\renewcommand{\headrulewidth}{0pt}
}
\pagestyle{plain}
\renewcommand{\rmdefault}{pag}
\usepackage[utf8]{inputenc}
\usepackage[hyphens]{url}
\usepackage[authoryear,round]{natbib}
\newcommand{\titlefontarash}{%
\usefont{OT1}{pag}{b}{n}%
\fontsize{25}{\baselineskip}%
\selectfont%
}
\newcommand{\basefontarash}{%
\usefont{OT1}{pag}{b}{n}%
\fontsize{18}{\baselineskip}%
\selectfont%
}
\begin{document}
\title{\titlefontarash Helping each other}
\author{\basefontarash Good boy}
{ % <===================================================================
\maketitle
\let\clearpage\relax
\frontmatter
} % <===================================================================
\vspace*{\fill}
\begin{center}
\basefontarash To good...
\basefontarash To those good..
\end{center}
\vspace*{\fill}
\tableofcontents
\mainmatter
\begin{adjustwidth}{2.25in}{0pt}
\chapter{Introduction}
\section{Introducing the fish}
\section{fox}
referring to \citet{Fish(1979)}.
A \textbf{fish} (or \textbf{cat}) jungle sky.
\section{river}
\Blinddocument
\chapter{Introduction2}
\section{Introducing the fish2}
\section{fox2}
\end{adjustwidth}
\begin{thebibliography}{9}
\bibitem[Fish(1979)]{Fish(1979)} Fish, Y(1979) \textit{orange HHH} New York:
hot.
\end{thebibliography}
\end{document}