latex表格居中和表格内容居中

\begin{table} \caption{Table captions should be placed above the tables.}\label{tab1} \begin{tabular}{|l|l|l|} \hline Heading level & Example & Font size and style\ \hline Title (centered) & {\Large\bfseries Lecture Notes} & 14 point, bold\ 1st-level heading & {\large\bfseries 1 Introduction} & 12 point, bold\ 2nd-level heading & {\bfseries 2.1 Printing Area} & 10 point, bold\ 3rd-level heading & {\bfseries Run-in Heading in Bold.} Text follows & 10 point, bold\ 4th-level heading & {\itshape Lowest Level Heading.} Text follows & 10 point, italic\ \hline \end{tabular} \end{table}

如果需要表格在文中居中，且代码中由tabular（上述代码第三行**\begin{tabular}{|l|l|l|}），则在\begin{table}** 后面添加 \centering，若table没有嵌入tabular，可以在**\begin{table}之前添加\begin{center},\end{table}之后添加\end{center}**。

\begin{tabular}{|l|l|l|} 代码{}中的L(l)代表左对齐，分隔符|代表表格的边框，比如上述代码得到的表格如下 修改格式后：\begin{tabular}{|c|c|c|} 修改边框后：\begin{tabular}{c|c|c}