latex中不规则表格合并multirow、multicolumn的使用
nrows
设定所占用的行数。
bigstructs
此为可选项，主要是在你使用了
width
设定该栏文本的宽度。如果想让 LaTeX 自行决定文本的宽度，则用
fixup
此为可选项，主要用来调整文本的垂直位置。
text
所要排版的文本。可用 更多的例子：
\bigstrutjot=1pt% \begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}{2cm}{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular}
\begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}[30]{2cm}{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular}
\begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}{2cm}[30pt]{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular}
\begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}[30]{2cm}[-30pt]{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular}
有关 multirow 宏包更详细的说明，可参见它的说明文档（英文 PDF 格式）。
\begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}[30]{2cm}{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular} 
\begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}{2cm}[30pt]{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular} 
\begin{tabular}{|l|l|l|l|} \hline \multirow{4}{2cm}{This is a demo table} & C2a & \multirow{4}[30]{2cm}[-30pt]{This is another one} & C4a\\ & C2b & & C4b\\ & C2c & & C4c\\ & C2d & & C4d\\ \hline \end{tabular} 