考虑包含以下命令的 MWE \renewcommand\cftchapafterpnum{\vspace*{5pt}}：
\documentclass{book}
\usepackage{tocloft}
\usepackage{xcolor}
\let\cleardoublepage\clearpage
\renewcommand{\cftchapfont}{\large}
\renewcommand\cftchapafterpnum{\vspace*{5pt}}
\renewcommand{\cftchapleader}{\dotfill}
\begin{document}
\tableofcontents
\addcontentsline{toc}{chapter}{1. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{2. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{3. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{4. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{5. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{6. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{7. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{8. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{9. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\addcontentsline{toc}{chapter}{10. \textcolor{red}{\textbf{A rose by any other name would smell as sweet.}} A rose by any other name would smell as sweet. A rose by any other name would smell as sweet. A rose by any other name would smell as sweet.}
\end{document}
产生内容输出
除了 (1) 之外，未能插入分页符---还有（出于我不知道的原因）--- (2) 目录之前的空白页，以及 (3) 目录页上出现的页眉（我没有调用）显示内容，以及页码。
我注意到，如果我\renewcommand\cftchapafterpnum{\vspace*{5pt}}从序言中删除该命令，一切似乎都会恢复正常的工作状态 - 即，目录会在适当的位置插入分页符，前导空白页会消失，并且神秘的页眉也不复存在。
问题：为什么使用\renewcommand\cftchapafterpnum{\vspace*{5pt}}似乎会造成如此大混乱？我该如何纠正这些异常，同时仍将章节条目之间的垂直间距再增加 5pt？
谢谢。