如何仅在 frontmatter 上获取 openright？

Question

我需要使用 openright仅有的在前面的内容。使用

\documentclass[12pt, letterpaper]{book}
\begin{document}
\frontmatter
\chapter{First Chapter at front matter}  % This must be page i
\chapter{Second Chapter at front matter}  % This must be page iii
\mainmatter
\chapter{First Chapter at main matter}  % This must be page 1
\chapter{Second Chapter at main matter}  % This must be page 2
\end{document}

我在所有文档中都获得了 openright 并使用

\documentclass[12pt, letterpaper, oneside]{book}
\begin{document}
\frontmatter
\chapter{First Chapter at front matter}  % This must be page i
\chapter{Second Chapter at front matter}  % This must be page iii
\mainmatter
\chapter{First Chapter at main matter}  % This must be page 1
\chapter{Second Chapter at main matter}  % This must be page 2
\end{document}

我在所有文档中都得到了 openany。

Answer 1

在后面添加此内容\frontmatter：

\makeatletter
\@openrightfalse
\makeatother

代码：

\documentclass[12pt, letterpaper]{book}
\begin{document}
\frontmatter
\chapter{First Chapter at front matter}  % This must be page i
\chapter{Second Chapter at front matter}  % This must be page iii
\makeatletter
\@openrightfalse
\makeatother
\mainmatter
\chapter{First Chapter at main matter}  % This must be page 1
\chapter{Second Chapter at main matter}  % This must be page 2
\end{document}