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texmaker 中的 \multicolumn 错误

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texmaker 中的 \multicolumn 错误

下面的代码给出了以下错误：! Paragraph ended before \multicolumn was complete.

我试了好几次，但还是找不到我做错的地方。完全相同的表格在 MikTeX 中运行良好，但我现在正在使用 TeXmaker，它不起作用。是否有一个特殊的包需要我导入？

\begin{tabular}{ccc}
\includegraphics[scale=.2]{J48PerClass.eps} &
\includegraphics[scale=.2]{PARTCM.eps} &
\includegraphics[scale=.2]{SVMCM.eps} \\
\small{(a) J48} & \small{(b) PART} & \small{(c) SVM} \\
\includegraphics[scale=.2]{J48PCM.eps} &
\includegraphics[scale=.2]{PARTPCM.eps} &
\includegraphics[scale=.2]{MLPCM.eps} \\
\small{(d) J48 pruned} & \small{(e) PART pruned} & \small{(f) MLP} \\
\includegraphics[scale=.2]{NBCM.eps}& \multicolumn{2}{c}{

\raisebox{2.2cm}{\footnotesize{
\begin{tabular} {|l|l|}
\hline
  a = SQL injection              &l = Static \\
  b = Denial of Service          &m = Other attack\\
  c = Spam on Wiki               &n = Password cracking on Wiki \\  
  d = Spam on Blog               &o = Spam on Wiki  \\
  e = Password cracking on Blog  &p = Wiki  \\
  f = Other vulnerability scan   &q = Blog \& Wiki  \\
  g = DFind                      &r = Blog  \\
  h = Other fingerprinting       &s = Spam on Blog  \\
  i = (XSS) Cross site scripting & \\
  j = (RFI) Remote file inclusion  & \\
  k = Static \& Blog \& & \\
  \ \ \ \ \ Wiki        & \\ \hline
  \end{tabular}
  }}}
 \\

\small{(g) NB} & & \\

\end{tabular}

答案1

下面这行

\includegraphics[scale=.2]{NBCM.eps}& \multicolumn{2}{c}{

产生错误，因为后面跟着一个空行，这对于 TeX 来说意味着一个新段落。

答案2

尽管环境中通常允许有空行tabular，但它们不在\multicolumn.

你也有一些虚假的空间，我用标记<-- here和保护行尾%

\begin{tabular}{ccc}
\includegraphics[scale=.2]{J48PerClass.eps} &
\includegraphics[scale=.2]{PARTCM.eps} &
\includegraphics[scale=.2]{SVMCM.eps} \\
\small{(a) J48} & \small{(b) PART} & \small{(c) SVM} \\
\includegraphics[scale=.2]{J48PCM.eps} &
\includegraphics[scale=.2]{PARTPCM.eps} &
\includegraphics[scale=.2]{MLPCM.eps} \\
\small{(d) J48 pruned} & \small{(e) PART pruned} & \small{(f) MLP} \\
\includegraphics[scale=.2]{NBCM.eps}& \multicolumn{2}{c}{% <-- here
\raisebox{2.2cm}{\footnotesize{% <-- here
\begin{tabular} {|l|l|}
\hline
  a = SQL injection              &l = Static \\
  b = Denial of Service          &m = Other attack\\
  c = Spam on Wiki               &n = Password cracking on Wiki \\  
  d = Spam on Blog               &o = Spam on Wiki  \\
  e = Password cracking on Blog  &p = Wiki  \\
  f = Other vulnerability scan   &q = Blog \& Wiki  \\
  g = DFind                      &r = Blog  \\
  h = Other fingerprinting       &s = Spam on Blog  \\
  i = (XSS) Cross site scripting & \\
  j = (RFI) Remote file inclusion  & \\
  k = Static \& Blog \& & \\
  \ \ \ \ \ Wiki        & \\ \hline
  \end{tabular}% <-- here
  }}}
 \\

\small{(g) NB} & & \\

\end{tabular}

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