%看以下代码： 表格单元格内强制换行
\documentclass{article}
\begin{document}
Structural Health Monitoring (SHM) is a fast-developing, interdisciplinary field of research due to the fact that SHM is heavily stimulated by the engineering problems of maintenance and safe operation of technical infrastructure.
$$\sum_{i=1}^{n}$$
The core problem of SHM is the damage identification, which can be divided into five levels
%表格
\begin{table}[tbp]
\centering % 表居中
\begin{tabular}{lccc} % {lccc} 表示各列元素对齐方式，left-l,right-r,center-c
\hline
Player &Round 1 &Round 2 &Round 3\\ \hline % \hline 在此行下面画一横线
Dave &89 &91 &88\\ % \\ 表示重新开始一行
Don &102 &105 &99\\ % & 表示列的分隔线
Todd &153 &256 &357\\ \hline
\end{tabular}
\caption{Through three rounds at the Muni.}
\end{table}
%结束
1) detection of damage existence; 2) localization of damage; 3) identification of damage type; 4) quantification of damage extent; and 5) damage prognosis.
\end{document}
%编译后如下格式
%将红色代码 tbp 改为 htbp, 编译后显示为
=====================================================================================================================
/newcommand{/tabincell}[2]{/begin{tabular}{@{}#
[email protected]{}}#2/end{tabular}}%放在导言区
%然后使用&/tabincell{c}{}&就可以在表格中自动换行
%比如这么用
/begin{tabular}{|c|c|}
/hline
1 & the first line //
/hline
2 & /tabincell{c}{haha// heihei//zeze} //
/hline
/end{tabular}
以下为一例子，可直接存为.tex文件编译运行:
\documentclass[a4paper,12pt]{article}
\begin{document}
\begin{table}
\centering
\begin{tabular}{|c|c|c|}\hline
1 & \tabincell{c}{the first line \\ the next\\the next\\ last} & \tabincell{c}{one \\ one}\\\hline
2 & \tabincell{c}{hello\\ aha\\ ok \\yes \\en} & \tabincell{c}{two \\ two \\ two} \\\hline
\end{tabular}
\caption{longtitle}
\end{table}
\end{document}
结果如下图：
http://blog.sina.com.cn/s/blog_531bb7630101841e.html