这是我的tex 文件，我想将pdf文件打印在一页A4纸上，但是pdflatex自动给我两页结果，如何在一页上显示内容？
答案1
使用了 Paul Gaborits 评论中的几何包，删除了一些设置长度并添加了列分隔。
\documentclass[10pt,a4paper]{article}
% Packages
\usepackage{fancyhdr} % For header and footer
\usepackage{multicol} % Allows multicols in tables
\usepackage{tabularx} % Intelligent column widths
\usepackage{tabulary} % Used in header and footer
\usepackage{hhline} % Border under tables
\usepackage{graphicx} % For images
\usepackage{xcolor} % For hex colours
%\usepackage[utf8x]{inputenc} % For unicode character support
\usepackage[T1]{fontenc} % Without this we get weird character replacements
\usepackage{colortbl} % For coloured tables
\usepackage{setspace} % For line height
\usepackage{lastpage} % Needed for total page number
\usepackage{seqsplit} % Splits long words.
%\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem} % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath} % Symbols
\usepackage{MnSymbol} % Symbols
\usepackage{wasysym} % Symbols
%\usepackage[english,german,french,spanish,italian]{babel} % Languages
% Lengths and widths
\addtolength{\textwidth}{6cm}
%removed stuff here
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing
% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use
% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{C10443}
\definecolor{LightBackground}{HTML}{F4D4DF}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}
\newenvironment{absolutelynopagebreak}
\setlength{\columnsep}{2cm} % added
\usepackage[a4paper,total={170mm,257mm}, % added
left=5mm,
top=5mm,]{geometry}
\begin{document}
\begin{absolutelynopagebreak}
\raggedright
\raggedcolumns
% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.
\begin{multicols*}{3}
\begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Anchors}} \tn
% Row 0
\SetRowColor{LightBackground}
\textasciicircum{} & Start of string, or start of line in multi-line pattern \tn
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\textbackslash{}A & Start of string \tn
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\$ & End of string, or end of line in multi-line pattern \tn
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\textbackslash{}Z & End of string \tn
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\textbackslash{}b & Word boundary \tn
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
\textbackslash{}B & Not word boundary \tn
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\textbackslash{}\textless{} & Start of word \tn
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
\textbackslash{}\textgreater{} & End of word \tn
% Row Count 10 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{p{0.54747 cm} x{4.42953 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Character Classes}} \tn
% Row 0
\SetRowColor{LightBackground}
\textbackslash{}c & Control character \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\textbackslash{}s & White space \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\textbackslash{}S & Not white space \tn
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\textbackslash{}d & Digit \tn
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\textbackslash{}D & Not digit \tn
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
\textbackslash{}w & Word \tn
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\textbackslash{}W & Not word \tn
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
\textbackslash{}x & Hexadecimal digit \tn
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\textbackslash{}O & Octal digit \tn
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{POSIX}} \tn
% Row 0
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:upper:{]} & Upper case letters \tn
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}{[}:lower:{]} & Lower case letters \tn
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:alpha:{]} & All letters \tn
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\{\{nobreak\}\}{[}:alnum:{]} & Digits and letters \tn
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:digit:{]} & Digits \tn
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
\{\{nobreak\}\}{[}:xdigit:{]} & Hexadecimal digits \tn
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:punct:{]} & Punctuation \tn
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
\{\{nobreak\}\}{[}:blank:{]} & Space and tab \tn
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:space:{]} & Blank characters \tn
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
\{\{nobreak\}\}{[}:cntrl:{]} & Control characters \tn
% Row Count 20 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:graph:{]} & Printed characters \tn
% Row Count 22 (+ 2)
% Row 11
\SetRowColor{white}
\{\{nobreak\}\}{[}:print:{]} & Printed characters and spaces \tn
% Row Count 24 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\{\{nobreak\}\}{[}:word:{]} & Digits, letters and underscore \tn
% Row Count 26 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{x{1.44333 cm} x{3.53367 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Assertions}} \tn
% Row 0
\SetRowColor{LightBackground}
?= & Lookahead assertion \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
?! & Negative lookahead \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
?\textless{}= & Lookbehind assertion \tn
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
?!= or ?\textless{}! & Negative lookbehind \tn
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
?\textgreater{} & Once-only Subexpression \tn
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
?() & Condition {[}if then{]} \tn
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
?()| & Condition {[}if then else{]} \tn
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
?\# & Comment \tn
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{p{0.4177 cm} x{1.29487 cm} p{0.87717 cm} x{1.58726 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Quantifiers}} \tn
% Row 0
\SetRowColor{LightBackground}
* & 0 or more & \{3\} & Exactly 3 \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
+ & 1 or more & \{3,\} & 3 or more \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
? & 0 or 1 & \{3,5\} & 3, 4 or 5 \tn
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\SetRowColor{LightBackground}
\mymulticolumn{4}{x{5.377cm}}{Add a ? to a quantifier to make it ungreedy.} \tn
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Escape Sequences}} \tn
% Row 0
\SetRowColor{LightBackground}
\textbackslash{} & Escape following character \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\textbackslash{}Q & Begin literal sequence \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\textbackslash{}E & End literal sequence \tn
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{"Escaping" is a way of treating characters which have a special meaning in regular expressions literally, rather than as special characters.} \tn
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{p{1.04425 cm} p{1.04425 cm} p{1.04425 cm} p{1.04425 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Common Metacharacters}} \tn
% Row 0
\SetRowColor{LightBackground}
\textasciicircum{} & {[} & . & \$ \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\{ & * & ( & \textbackslash{} \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
+ & ) & | & ? \tn
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\textless{} & \textgreater{} & & \tn
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\SetRowColor{LightBackground}
\mymulticolumn{4}{x{5.377cm}}{The escape character is usually \textbackslash{}} \tn
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{p{0.84609 cm} x{4.13091 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Special Characters}} \tn
% Row 0
\SetRowColor{LightBackground}
\textbackslash{}n & New line \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\textbackslash{}r & Carriage return \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\textbackslash{}t & Tab \tn
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\textbackslash{}v & Vertical tab \tn
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\textbackslash{}f & Form feed \tn
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
\textbackslash{}xxx & Octal character xxx \tn
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\textbackslash{}xhh & Hex character hh \tn
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{x{0.84609 cm} x{4.13091 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Groups and Ranges}} \tn
% Row 0
\SetRowColor{LightBackground}
. & Any character except new line (\textbackslash{}n) \tn
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
(a|b) & a or b \tn
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
(...) & Group \tn
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
\seqsplit{(?:...)} & Passive (non-capturing) group \tn
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{[}abc{]} & Range (a or b or c) \tn
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
{[}\textasciicircum{}abc{]} & Not (a or b or c) \tn
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
{[}a-q{]} & Lower case letter from a to q \tn
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
{[}A-Q{]} & Upper case letter from A to Q \tn
% Row Count 10 (+ 1)
% Row 8
\SetRowColor{LightBackground}
{[}0-7{]} & Digit from 0 to 7 \tn
% Row Count 11 (+ 1)
% Row 9
\SetRowColor{white}
\textbackslash{}x & Group/subpattern number "x" \tn
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{Ranges are inclusive.} \tn
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{x{0.84609 cm} x{4.13091 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Pattern Modifiers}} \tn
% Row 0
\SetRowColor{LightBackground}
g & Global match \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
i~* & Case-insensitive \tn
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
m~* & Multiple lines \tn
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
s~* & Treat string as single line \tn
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
x~* & Allow comments and whitespace in pattern \tn
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
e~* & Evaluate replacement \tn
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
U~* & Ungreedy pattern \tn
% Row Count 13 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{* PCRE modifier} \tn
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
\begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String Replacement}} \tn
% Row 0
\SetRowColor{LightBackground}
\$n & nth non-passive group \tn
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\$2 & "xyz" in /\textasciicircum{}(abc(xyz))\$/ \tn
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\$1 & "xyz" in /\textasciicircum{}(?:abc)(xyz)\$/ \tn
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\$` & Before matched string \tn
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\$' & After matched string \tn
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
\$+ & Last matched string \tn
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\$\& & Entire matched string \tn
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{Some regex implementations use \textbackslash{} instead of \$.} \tn
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}
% That's all folks
\end{multicols*}
\end{absolutelynopagebreak}
\end{document}
结果：
