![} 太多。Latex 错误:\begin{document} 以 \end{table} 结束。EXTRA \endgroup](https://linux22.com/image/449018/%7D%20%E5%A4%AA%E5%A4%9A%E3%80%82Latex%20%E9%94%99%E8%AF%AF%EF%BC%9A%5Cbegin%7Bdocument%7D%20%E4%BB%A5%20%5Cend%7Btable%7D%20%E7%BB%93%E6%9D%9F%E3%80%82EXTRA%20%5Cendgroup%20.png)
在 main.tex 中
% $Description: Thesis
% $Author: xxx $
% $Date: xxx $
% $Revision: 0.0 $
\documentclass[11pt]{book}
\usepackage{times}
\usepackage{epsfig}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{latexsym}
\usepackage{graphicx}
\usepackage{multirow}
\usepackage{algorithm2e}
\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage{blindtext}
\graphicspath{{Figures/}{./}} % To include images in other directories
%\usepackage{setspace}
\long\def\symbolfootnote[#1]#2{\begingroup%
\def\thefootnote{\fnsymbol{footnote}}\footnote[#1]{#2}\endgroup}
\renewcommand{\baselinestretch}{1.2}
\onecolumn
%--------------------------------------------------------
\begin{document}
在 chapter2.tex 中
\begin{table}[t]
\begin{center}
\begin{tabular}{ |c|c|c| }
\hline
\textbf{Parameters}&
\textbf{Ground WSN}&
\textbf{Underwater WSN}\\ \hline
Communication Modality & Radio waves & Acoustic waves \\ \hline
Channel Propagation Speed & 300,000,000 m/s & 1,500 m/s \\ \hline
Transmission Range & 10 to 100 m & Up to 10 Km \\ \hline
Energy consumption & Low comparatively & High comparatively \\ \hline
Memory capacity & Small & Large \\ \hline
Cost & Cheap & Expensive \\ \hline
Frequency & 908 to 928 MHz & 10 Hz to 100 KHz \\ \hline
Node Mobility & Application based & Mobile \\ \hline
Node Density & Dense & Sparse \\ \hline
Link Reliability & Application based & Low \\ \hline
Link Stability & Stable & Unstable \\ \hline
Path Loss & Low & High\\ \hline
Noise Impact & Low & High \\ \hline
Data Flow Mode & Full Duplex & Half Duplex \\ \hline
Flow and Error Control Protocol & Selective Repeat ARQ or Go-Back-N ARQ & Stop-and-Wait ARQ \\
\end{tabular}
\label{tab:table:1}
\caption{Difference between WSN and UWSN}
\end{center}
\end{table}
答案1
- 从你的代码片段中不可能编写 MWE(最小工作示例),这将是你的问题的根源
- 错误发生在文档中表格代码片段之外的某个地方
一些题外话:
- 表格宽度大于`\text 宽度,因此表格突出右文本区域边框
- 为了防止这种情况,您需要规定列宽,例如
p{\dimexpr\linewidth/3-2\tabcolsep}<width>}
或更简单地使用xtabular
或tabularray
允许自动计算列宽的包。 - 通过使用
tabularrray
包表代码简短而清晰 - 对于数量的书写,我建议使用
siunitx
包
\documentclass[11pt]{book}
%---------------- Show page layout. Don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%
\usepackage{lipsum}% For dummy text. Don't use in a real document
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage{newtxtext, newtxmath}
\usepackage{tabularray}
\UseTblrLibrary{siunitx} % it load siunitx package
\begin{document}
\begin{table}[ht]
\sisetup{group-separator={,}}
\begin{tblr}{hlines, vlines,
colspec = {X[l, m] X[l, m] X[l]},
row{1} = {font=\bfseries}
}
Parameters
& Ground WSN
& Underwater WSN \\
Communication Modality
& Radio waves
& Acoustic waves \\
Channel Propagation Speed
& \qty{300 000 000}{\metre\per\second}
& \qty{1 500}{\metre\per\second} \\
Transmission Range
& \qtyrange{10}{100}{\metre}
& Up to \qty{10}{\kilo\metre} \\
Energy consumption
& Low comparatively
& High comparatively \\
Memory capacity
& Small & Large \\
Cost & Cheap & Expensive \\
Frequency
& \qtyrange{908}{928}{\mega\hertz}
& \qty{10}{\hertz} to \qty{100}{\kilo\hertz} \\
Node Mobility
& Application based
& Mobile \\
Node Density
& Dense & Sparse \\
Link Reliability
& Application based
& Low \\
Link Stability
& Stable & Unstable \\
Path Loss
& Low & High \\
Noise Impact
& Low & High \\
Data Flow Mode
& Full Duplex
& Half Duplex \\
Flow and Error Control Protocol
& Selective Repeat ARQ or Go-Back-N ARQ
& Stop-and-Wait ARQ \\
\end{tblr}
\caption{Difference between WSN and UWSN}
\label{tab:table:1}
\end{table}
\end{document}
\end{document}
(红线表示页面布局)
如果你出于某些原因坚持认为表格单元格中的文本居中,那么对于列规范使用colspec = {X[c, m] X[c, m] X[c]}
。那么得到的表格是:
答案2
表格的主要问题是无法保证其宽度适合文本块。事实上,使用 LaTeX 默认边距设置,表格太宽了。为了解决这个问题,我建议您使用环境tabularx
并允许在前两列自动换行。
另外两个建议:(a)为了使表格看起来更加开放和吸引人,请删除所有垂直规则和大多数水平规则。(b)我建议左对齐而不是居中对齐单元格内容。
如果您希望能够交叉引用表,则语句\label
必须位于\caption
语句之后,而不是之前。
我已在下面的代码中插入进一步的建议和评论作为评论。
\documentclass[11pt]{book}
%%%\usepackage{epsfig} % superseded by 'graphicx' package
\usepackage{amsmath}
\usepackage{amssymb}
%%%\usepackage{latexsym} % superseded by 'amssymb' package
\usepackage{graphicx}
\graphicspath{{Figures/}{./}} % To include images in other directories
\usepackage{multirow}
\usepackage{algorithm2e}
%%%\usepackage{graphicx} % don't load packages more than once
%%%\usepackage[utf8]{inputenc} % that's the default nowadays
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
%%%\usepackage{times} % 'times' package is obsolete
\usepackage{newtxtext,newtxmath} % Times Roman-clone text and math fonts
%%%\usepackage{blindtext} % not needed here
\usepackage{setspace}
\setstretch{1.2}
%% Don't modify the low-level \baselinestretch parameter directly:
%%%\renewcommand{\baselinestretch}{1.2}
%% is the following really needed?
\long\def\symbolfootnote[#1]#2{\begingroup%
\def\thefootnote{\fnsymbol{footnote}}\footnote[#1]{#2}\endgroup}
% New code:
\usepackage{booktabs} % for well-spaced horizontal rules
\usepackage{tabularx} % for 'tabularx' env. and 'X' column type
%% 'L' col. type allows both automatic line breaking and hanging indentation:
\newcolumntype{L}{>{\raggedright\hangafter=1\hangindent=1em}X}
%%%\onecolumn % really??
\begin{document}
\begin{table}[t]
%%%\begin{center} % not appropriate
%%%\centering % not needed
\begin{tabularx}{\textwidth}{@{} LL l @{}} %%%{ |c|c|c| }
\toprule % Use fewer, but well-spaced horizontal rules
%% No need for vulgar bold-facing in header cells:
%\textbf{Parameters}&\textbf{Ground WSN}& \textbf{Underwater WSN}
Parameters & Ground WSN & Underwater WSN \\
\midrule
%% I've commented out all 14 [!] remaining \hline directives:
Communication modality & Radio waves & Acoustic waves \\ %\hline
Channel propagation speed & 300,000,000 m/s & 1,500 m/s \\ %\hline
Transmission range & 10 to 100 m & Up to 10 km \\ %\hline
Energy consumption & Low comparatively & High comparatively \\ \addlinespace %\hline
Memory capacity & Small & Large \\ %\hline
Cost & Cheap & Expensive \\ %\hline
Frequency & 908 to 928 MHz & 10 Hz to 100 KHz \\ %\hline
Node mobility & Application based & Mobile \\ \addlinespace %\hline
Node density & Dense & Sparse \\ %\hline
Link reliability & Application based & Low \\ %\hline
Link stability & Stable & Unstable \\ %\hline
Path loss & Low & High\\ \addlinespace %\hline
Noise impact & Low & High \\ %\hline
Data flow mode & Full duplex & Half duplex \\ %\hline
Flow and error control protocol & Selective Repeat ARQ or Go-Back-N ARQ & Stop-and-Wait ARQ \\
\bottomrule
\end{tabularx}
%%% ALWAYS place \label after, ot before, \caption:
\caption{Differences between WSN and UWSN} \label{tab:table:1}
%%%\end{center}
\end{table}
\end{document}