为了使论文的题词居中，我必须对该页使用 newgeometry。下一页的页码现在丢失了，并且 fancyhdr 给出了以下警告：
软件包 Fancyhdr 警告：\fancyfoot 的 `E' 选项如果没有 twoside 选项，在输入行 ** 上是无用的。
我创建了一个 MWE，它用尽可能少的行显示问题。如果您注释掉包含 restoregeometry 命令的 newgeometry 块，则错误消息会消失并显示页码。在 restoregeometry 命令之后再次调用 thispagestyle 和/或 pagestyle 不会有帮助。
平均能量损失
\documentclass[twoside]{article}
\usepackage[utf8]{inputenc}
\usepackage{%
geometry,%
fancyhdr,%
parskip,%
xparse,%
}
\geometry{%
paper = a4paper,%
top = 3cm,%
bottom = 3.5cm,%
inner = 3.5cm,%
outer = 2.5cm,%
nomarginpar,%
showframe = true%
}
\fancypagestyle{noheader}{%
\fancyhf{} % Clean fields
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0.4pt}
\fancyfoot[LE, RO]{\thepage}%
}
\NewDocumentEnvironment{dedication}{}{%
\newpage%
\newgeometry{%
top = 0cm,%
bottom = 3.5cm,%
inner = 3.5cm,%
outer = 2.5cm,%
nomarginpar,%
}
\vspace*{\fill}
\itshape%
\centering%
}{%
\vspace*{\fill}%
\restoregeometry%
\newpage%
}
\begin{document}
\thispagestyle{noheader}%
\pagestyle{noheader}%
This is only the first page. On the next page, the dedication will be displayed.
\begin{dedication}
I'm a touching dedication
\end{dedication}
I'm the third page. Note that I do not have a page number, even though the first and the second page have one.
\end{document}
编辑
这些是应用 egregs answer 后的日志输出。
] [2]) (./dedication.tex [3
] [4]
*geometry* verbose mode - [ newgeometry ] result:
* driver: xetex
* paper: a4paper
* layout: <same size as paper>
* layoutoffset:(h,v)=(0.0pt,0.0pt)
* modes:
* h-part:(L,W,R)=(99.58464pt, 426.79135pt, 71.13188pt)
* v-part:(T,H,B)=(0.0pt, 745.4622pt, 99.58464pt)
* \paperwidth=597.50787pt
* \paperheight=845.04684pt
* \textwidth=426.79135pt
* \textheight=745.4622pt
* \oddsidemargin=27.31465pt
* \evensidemargin=27.31465pt
* \topmargin=-109.26999pt
* \headheight=12.0pt
* \headsep=25.0pt
* \topskip=10.0pt
* \footskip=30.0pt
* \marginparwidth=0.0pt
* \marginparsep=0.0pt
* \columnsep=10.0pt
* \skip\footins=9.0pt plus 4.0pt minus 2.0pt
* \hoffset=0.0pt
* \voffset=0.0pt
* \mag=1000
* \@twocolumnfalse
* \@twosidefalse
* \@mparswitchfalse
* \@reversemarginfalse
* (1in=72.27pt=25.4mm, 1cm=28.453pt)
Package Fancyhdr Warning: \fancyfoot's `E' option without twoside option is useless on input line 5.
答案1
\restoregeometry您应该在环境结束后申请。
%我还通过删除不必要的部分并在必要时添加它们来修复代码。也比这个上下文\clearpage更好。如果您愿意，可以删除设置。\newpage\thispagestyle{empty}
\documentclass[twoside]{article}
\usepackage[utf8]{inputenc}
\usepackage{
geometry,
fancyhdr,
parskip,
xparse,
}
\geometry{
paper = a4paper,
top = 3cm,
bottom = 3.5cm,
inner = 3.5cm,
outer = 2.5cm,
nomarginpar,
% showframe = true
}
\fancypagestyle{noheader}{%
\fancyhf{}% Clean fields
\renewcommand{\headrulewidth}{0pt}%
\renewcommand{\footrulewidth}{0.4pt}%
\fancyfoot[LE, RO]{\thepage}%
}
\NewDocumentEnvironment{dedication}{}{%
\clearpage
\newgeometry{
top = 0cm,
bottom = 3.5cm,
inner = 3.5cm,
outer = 2.5cm,
nomarginpar,
}
\thispagestyle{empty}
\vspace*{\fill}
\itshape
\centering
}{%
\par\vspace*{\fill}
\clearpage
\aftergroup\restoregeometry
}
\begin{document}
\pagestyle{noheader}
This is only the first page. On the next page, the dedication will be displayed.
\begin{dedication}
I'm a touching dedication
\end{dedication}
I'm the third page. Note that I do not have a page number, even though the
first and the second page have one.
\end{document}
另一方面，我认为没有什么真正的理由\newgeometry，只是将奉献精神稍微往上移一点。
