包粗线：需要在水平线和其下方文本的顶行之间留出更多空间

Question

我的症状是：

如您所见，标题文本离最顶部的规则太近了。如何在该规则和标题文本的顶行之间添加一些垂直空间？

我的代码：

\usepackage{boldline}
.
.
.
\begin{table}[!h]
\centering
\begin{tabular}{l|l|l|l}
\hlineB{4}
List size $N$ & Number of fingers $n$ & Finger configuration & $H_1$ \\
\hline
\hline
17 & 5 &  \texttt{[0, 1, 2, 3, 16]} & \cellcolor{blue!36} -0.176 \\
.
.
.
\hline
50 & 8 &  \texttt{[0, 1, 2, 3, 4, 5, 6, 49]} & -0.540 \\
\vdots & \vdots & \vdots & \vdots \\
\hlineB{4}
\end{tabular}
\end{table}

Answer 1

像这样？

对于上表用于\setlength\extrarowheight{2pt}增加行高 2pt：

    \begin{table}[!h]
\setlength\extrarowheight{2pt}  % <----
\centering
\begin{tabular}{l|l|l|l}
    \hlineB{4}
List size $N$ & Number of fingers $n$ & Finger configuration & $H_1$ \\
    \hline
    \hline
17 & 5 &  \texttt{[0, 1, 2, 3, 16]} & \cellcolor{blue!36} -0.176 \\
    \hline
50 & 8 &  \texttt{[0, 1, 2, 3, 4, 5, 6, 49]} & -0.540 \\
\vdots & \vdots & \vdots & \vdots \\
    \hlineB{4}
\end{tabular}
    \end{table}