表格上的 Cmidrule 不起作用

Question

我一直试图在超车时设置中间线，但似乎无法让它工作。我在其他两个位置都设置了中间线，但不明白为什么它不让我在这个位置设置。

\begin{table}
\centering
\begin{tabular}{l*{6}{c}}
\toprule
\multicolumn{3}{c}{Sieve Size}  & \multicolumn{2}{c}{Retaining} & 
\multicolumn{1}{c}{Passing}  \\
\cmidrule(r){1-3}\cmidrule(r){4-5}
\multicolumn{1}{c}{US} & \multicolumn{1}{c}{in.} &  \multicolumn{1}{c} 
{mm.}&\multicolumn{1}{c}{\%} & \multicolumn{1}{c}{Cum. \%} &\multicolumn{1}{c} 
{\%}\\\midrule
$\frac{3}{8}$ & 0.5 & 12.5 & 4.2 & 4.2 & 95.8  \\ 
\#4 & 0.1870 & 4.75 & 23.7 & 27.9 & 72.1\\ 
\#8 & 0.0937 & 2.36 & 20.0 & 47.9 & 52.1 \\ 
\#16 & 0.0460 & 1.18 & 28.1 & 76.0 & 24.0\\
\#30 & 0.0240 & 0.60 & 7.1 & 83.1 & 16.9 \\
\#50 & 0.0120 & 0.30 & 8.4 & 91.5 & 8.5\\
\#100 & 0.0060 & 0.15 & 6.8 & 98.3 & 1.7 \\
Pan & -- & -- & 1.7 & 100 & 0 \\\midrule
Sum & & &100 & 528.9 & 271.0\\ \bottomrule
  \end{tabular}
\end{table}

Answer 1

你失踪了\cmidrule{6-6}

\begin{table}
\centering
\begin{tabular}{l*{6}{c}}
\toprule
\multicolumn{3}{c}{Sieve Size}  & \multicolumn{2}{c}{Retaining} & 
\multicolumn{1}{c}{Passing}  \\
\cmidrule(r){1-3}\cmidrule(r){4-5}\cmidrule{6-6}
\multicolumn{1}{c}{US} & \multicolumn{1}{c}{in.} &  \multicolumn{1}{c} 
{mm.}&\multicolumn{1}{c}{\%} & \multicolumn{1}{c}{Cum. \%} &\multicolumn{1}{c} 
{\%}\\\midrule
$\frac{3}{8}$ & 0.5 & 12.5 & 4.2 & 4.2 & 95.8  \\ 
\#4 & 0.1870 & 4.75 & 23.7 & 27.9 & 72.1\\ 
\#8 & 0.0937 & 2.36 & 20.0 & 47.9 & 52.1 \\ 
\#16 & 0.0460 & 1.18 & 28.1 & 76.0 & 24.0\\
\#30 & 0.0240 & 0.60 & 7.1 & 83.1 & 16.9 \\
\#50 & 0.0120 & 0.30 & 8.4 & 91.5 & 8.5\\
\#100 & 0.0060 & 0.15 & 6.8 & 98.3 & 1.7 \\
Pan & -- & -- & 1.7 & 100 & 0 \\\midrule
Sum & & &100 & 528.9 & 271.0\\ \bottomrule
  \end{tabular}
\end{table}