出现以下问题：通常在我的文档中，每章结束后，在新章节开始之前都会有一页空白页。有趣的是，我的 pdf 中有一处在章节结束和新章节之间没有空白页。我试过，\newpage但\clear没有成功。也许我的 .cls 文件导致了这个问题。我在下面添加了几行。如果我添加一个
\newpage $\mbox{ }$
它会生成两个空白页。如果没有 $\mbox{ }$，则什么也不会发生。 也一样\clearpage。希望有人能帮助我！谢谢你的建议。
数学
.cls 文件的缩写
% RPI option chap:
\newif\ifchap % true for chap option
\chapfalse % false by default
\DeclareOption{chap}{\chaptrue} % option to print "Chapter" at each new chapter
\newcommand\docsize{} % to allow 10pt or 11pt to be specified as option
\DeclareOption{10pt}{\renewcommand\docsize{10pt}}
\DeclareOption{11pt}{\renewcommand\docsize{11pt}}
\DeclareOption{12pt}{\renewcommand\docsize{12pt}}
% Prepare to load the standard report class (12pt):
\DeclareOption*{\PassOptionsToClass{\CurrentOption}{report}}
\ExecuteOptions{12pt} % define 12pt as the default doc size
\ProcessOptions
\LoadClass[\docsize]{report} % load report.cls
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% SECTION HEADINGS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand\chaptersize{\large}
\newcommand\sectionsize{\large}
\newcommand\subsectionsize{\normalsize}
\newcommand\subsubsectionsize{\normalsize}
\newcounter{firstchapter}
\setcounter{firstchapter}{0}
\setcounter{secnumdepth}{3} % Number subsubsections in the chapters
\setcounter{tocdepth}{0} % Put subsubsections in the table of contents
% Print "CHAPTER" if chap option is specified:
\ifchap
\renewcommand\@chapapp{\chaptername}
\else
\renewcommand\@chapapp{}
\fi
\def\specialhead#1{% GENERAL HEADING WITHOUT A NUMBER (for abstract, etc.)
\ifx\phantomsection\undefined
\else
\clearpage\phantomsection
\fi
\addcontentsline{toc}{chapter}{#1}
\chapter*{\centering #1 \@mkboth{#1}{#1}}}
\def\@chapter[#1]#2{\ifnum\c@firstchapter=0 % start of rpi added stuff
\if@twoside\cleardoublepage\suppressfloats[t]\fi
\pagenumbering{arabic}
\setcounter{firstchapter}{1}
\fi
\renewcommand{\thepage}{\arabic{page}}
\thispagestyle{plain}
\pagestyle{myheadings} % end of rpi added stuff
\ifnum \c@secnumdepth >\m@ne
\refstepcounter{chapter}%
\typeout{\@chapapp\space\thechapter.}%
\addcontentsline{toc}{chapter}%
{\protect\numberline{\thechapter.}#1}%
\else
\addcontentsline{toc}{chapter}{#1}%
\fi
\chaptermark{#1}%
% \addtocontents{lof}{\protect\addvspace{10\p@}}%
% \addtocontents{lot}{\protect\addvspace{10\p@}}%
\if@twocolumn
\@topnewpage[\@makechapterhead{#2}]%
\else
\@makechapterhead{#2}%
\@afterheading
\fi}
\def\@makechapterhead#1{%
\vspace*{0\p@}%
{\parindent \z@ \raggedright \centering \normalfont \chaptersize
\ifnum \c@secnumdepth >\m@ne
\ifchap
\bfseries \@chapapp{} \thechapter % print "Chapter" and number
\vskip -3pt %\par\nobreak (original)
\else
\bfseries \thechapter.
\fi
\fi
\interlinepenalty\@M
\bfseries #1\par\nobreak
\vskip 15\p@
}}
\def\@makeschapterhead#1{% heading for chapter* command (no numbering)
\vspace*{0\p@}%
{\parindent \z@ \raggedright \centering
\normalfont \chaptersize
\interlinepenalty\@M
\bfseries #1\par\nobreak
\vskip 15\p@
}}
\renewcommand\section{\@startsection {section}{1}{\z@}%
{3.5ex \@plus 1ex \@minus .2ex}%
{.5ex \@plus .3ex}%{1.4ex \@plus.2ex}%
{\normalfont\sectionsize\bfseries}}
\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
{3.25ex\@plus 1ex \@minus .2ex}%
{.3ex \@plus .2ex}%{1.2ex \@plus .2ex}%
{\normalfont\subsectionsize\bfseries}}
\renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
{3.25ex\@plus 1ex \@minus .2ex}%
{.2ex \@plus .1ex}%{1ex \@plus .2ex}%
{\normalfont\subsubsectionsize\bfseries}}
% \paragraph and \subparagraph headings unchanged from report.cls.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% FOR RPI TITLEPAGE, ABSTR. TITLEPAGE & COPYRIGHT PAGE
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\def\thesistitle#1{\gdef\@thesistitle{#1}}
\def\author#1{\gdef\@author{#1}}
\def\degree#1{\gdef\@degree{#1}}
\def\department#1{\gdef\@department{#1}}
\newcount\numcomm \numcomm=1
\def\signaturelines#1{\numcomm=#1}
\def\thadviser#1{\gdef\@thadviser{#1}}
\def\projadviser#1{\gdef\@projadviser{#1}} \projadviser{*}
\def\cothadviser#1{\gdef\@cothadviser{#1}} \cothadviser{*}
\def\coprojadviser#1{\gdef\@coprojadviser{#1}} \coprojadviser{*}
\def\cocothadviser#1{\gdef\@cocothadviser{#1}} \cocothadviser{*}
\def\cocoprojadviser#1{\gdef\@cocoprojadviser{#1}} \cocoprojadviser{*}
\def\doctype{\if \@projadviser *Thesis \else Project \fi}
\def\adviser{\if \@projadviser *\@thadviser \else \@projadviser\fi}
\def\coadviser{\if \@coprojadviser *\@cothadviser\else \@coprojadviser\fi}
\def\cocoadviser{\if \@cocoprojadviser *\@cocothadviser\else \@cocoprojadviser\fi}
\def\memberone#1{\gdef\@memberone{#1}}
\def\membertwo#1{\gdef\@membertwo{#1}}
\def\memberthree#1{\gdef\@memberthree{#1}}
\def\memberfour#1{\gdef\@memberfour{#1}}
\def\memberfive#1{\gdef\@memberfive{#1}}
\def\membersix#1{\gdef\@membersix{#1}}
\def\copyrightyear#1{\gdef\@copyrightyear{#1}} \copyrightyear{\the\year}
\def\submitdate#1{\gdef\@submitdate{#1}}
\newcount\numcount
\def\sigblock{
\ifnum\numcomm < 4 % master's thesis or project
\vskip .8in plus 24pt minus 24pt
%\leftline{Approved: \hfil}\vskip 48pt plus 2pt minus 10pt
%\hrule width 2.6in\hfil \vskip -6pt
\leftline{Supervisor: \adviser\hfil}
\if \coadviser * % no co-adviser
\else \vskip 12pt plus 6pt minus 2pt %\hrule width 2.6in\hfil \vskip -6pt
\leftline{Coordination: \coadviser\hfil}
\fi
\if \cocoadviser * % no coco-adviser
\else \vskip 36pt %plus 6pt minus 2pt \hrule width 2.6in\hfil \vskip -6pt
\leftline{\cocoadviser, \doctype Adviser\hfil}
\fi
\vskip 6pt
\else % PhD thesis
\numcount=\numcomm
\leftline{Approved by the\hfil}
\leftline{Examining Committee:\hfil}
\vskip 28pt \vfil
\hrule width 2.8in \hfil \vskip -3pt
\leftline{\adviser, \doctype Adviser\hfil}
\advance \numcount by -1
\if \coadviser * \else % there's a co-adviser
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\coadviser, \doctype Adviser\hfil}
\advance \numcount by -1
\fi
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\@memberone, Member\hfil}
\advance \numcount by -1
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\@membertwo, Member\hfil}
\advance \numcount by -1 \ifnum\numcount > 0
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\@memberthree, Member\hfil} \fi
\advance \numcount by -1 \ifnum\numcount > 0
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\@memberfour, Member\hfil} \fi
\advance \numcount by -1 \ifnum\numcount > 0
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\@memberfive, Member\hfil} \fi
\advance \numcount by -1 \ifnum\numcount > 0
\vskip 19pt\vfil\hrule width 2.8in\hfil\vskip -3pt
\leftline{\@membersix, Member\hfil} \fi
\fi}
\def\sigblockabs{%
\ifnum\numcomm < 4 % master's thesis or project
\vskip 1.8in plus 24pt minus 24pt
\leftline{Approved: \hfil}\vskip 24pt plus 2pt minus 10pt
\leftline{\adviser, \doctype Adviser\hfil}
%\leftline{Supervisor: \adviser \hfil}%my corrections
\if \coadviser * % no co-adviser
\else \vskip 8pt plus 6pt minus 2pt
\leftline{\coadviser, \doctype Adviser\hfil}
%\leftline{Coordination: \coadviser} %my corrections
\fi
\if \cocoadviser * % no coco-adviser
\else \vskip 8pt plus 6pt minus 2pt
\leftline{\cocoadviser, \doctype Adviser\hfil}
\fi
% \vglue 24pt
\else % PhD thesis
\numcount=\numcomm
\leftline{Examining Committee: \hfil}
\begin{quote}
\adviser, \doctype Adviser\\[4pt] \advance \numcount by -1
\if \coadviser * \else
\coadviser, \doctype Adviser\\[4pt] \advance\numcount by -1
\fi
\@memberone, Member\\[4pt] \advance \numcount by -1
\ifnum\numcount > 0
\@membertwo, Member\\[4pt] \advance \numcount by -1 \fi
\ifnum\numcount > 0
\@memberthree, Member\\[4pt] \advance \numcount by -1 \fi
\ifnum\numcount > 0
\@memberfour, Member\\[4pt] \advance \numcount by -1 \fi
\ifnum\numcount > 0
\@memberfive, Member\\[4pt]\advance \numcount by -1 \fi
\ifnum\numcount > 0
\@membersix, Member\\[4pt] \advance \numcount by -1\fi
\end{quote}
\fi
}
\def\titlepage{%
\pagenumbering{roman}
\thispagestyle{empty}
\ifnum\numcomm<4 \vglue .5in\vfil \fi % masters
\ifnum\numcomm>5 \hbox{ } \vspace{-24pt}\fi % make more space on page
\begin{singlespace}
\begin{center}
\parindent=0pt
{\large\uppercase\expandafter{\@thesistitle}}\\ [36pt]
A Bachelor-\doctype Submitted to\\ [8pt]
ETH ZURICH\\ [12pt]
Departement of Mathematics\\ [36pt]
Presented By \\ [12pt]
\@author\\ [36pt]
\@date
% in Partial Fulfillment of the\\ [8pt]
% Requirements for the Degree of\\ [8pt]
% \uppercase\expandafter{\@degree}\\ [8pt]
% Major Subject:~~\uppercase\expandafter{\@department}\\
\ifnum\numcomm < 7 \vskip 64pt \else \vskip 24pt \fi
\sigblock
\ifnum \numcomm < 7 \vskip 32pt \else \vskip 24pt \fi
% Rensselaer Polytechnic Institute\\
% Troy, New York\\ [14pt]
\ifnum\numcomm>6 \vskip -8pt \fi
\@submitdate
\end{center}
\end{singlespace}
\newpage
\pagestyle{plain}
% \pagenumbering{roman}
% \setcounter{page}{2}
}
\def\abstitlepage{%
\if@twoside\thispagestyle{empty}\cleardoublepage\fi
\pagenumbering{roman}
\thispagestyle{empty}
\ifnum\numcomm<4 \vglue .5in \fi % masters
\begin{singlespace}
\begin{center}
\parindent=0pt
\vglue 24pt plus 24pt minus 12pt
{\large\uppercase\expandafter{\@thesistitle}}\\ [11pt]
By \\ [11pt]
\@author\\ [11pt]
An Abstract of a Thesis Submitted to the Graduate\\ [7pt]
Faculty of Rensselaer Polytechnic Institute\\ [7pt]
in Partial Fulfillment of the\\ [7pt]
Requirements for the Degree of\\ [7pt]
\uppercase\expandafter{\@degree}\\ [7pt]
Major Subject:~~\uppercase\expandafter{\@department}\\ [7pt]
The original of the complete thesis is on file\\
in the Rensselaer Polytechnic Institute Library\\
\vfill
\sigblockabs
\vskip 36pt plus 2pt minus 12pt
Rensselaer Polytechnic Institute\\
Troy, New York\\ [12pt]
\@submitdate
\end{center}
\end{singlespace}
\newpage
\pagestyle{plain}
% \pagenumbering{roman}
% \setcounter{page}{2}
}
\def\copyrightpage{
\hbox{ }
\vfill
\begin{center}
\copyright\ Copyright \@copyrightyear \\
by \\
\@author \\
All Rights Reserved \\ [12pt]
\end{center}
\clearpage}
答案1
空白页并不是真的空白。让我们看看 的定义\cleardoublepage：
\def\cleardoublepage{%
\clearpage
\if@twoside
\ifodd\c@page
\else
\hbox{}\newpage
\if@twocolumn\hbox{}\newpage\fi
\fi
\fi}
\clearpage发出A。然后，如果文档使用该twoside选项，则检查当前页码（它是正确的，因为 TeX 刚刚弹出一页）：如果它是奇数，则我们在右侧页面上，无需执行任何操作。如果我们在左侧页面上，则必须弹出其中没有任何内容的页面：
\hbox{}\newpage
（如果启用了双列模式，则需要二 \newpage命令。
需要空框是因为垂直间距和惩罚（\newpage发出的内容）在分页符处被丢弃；因此
\newpage\newpage\newpage
不会给出空白页。
相反，\hbox{}人们可以说\null。