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如何使 ToC 中的多行水平对齐？

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如何使 ToC 中的多行水平对齐？

对于单行，内容对齐很好，但是当它包含多行时情况就不一样了。对齐很奇怪：

在此处输入图片描述

那么我怎样才能使它们很好地对齐呢？

最小示例

\documentclass[10pt,letterpaper]{article}
\usepackage[left=1in,right=1in,top=1in,bottom=1in]{geometry} 
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}

\setcounter{tocdepth}{3}
\setcounter{secnumdepth}{3}
\usepackage[bookmarksopen,bookmarksdepth=3]{hyperref}
\usepackage{titlesec}
\usepackage{xcolor}

%define new colors
\definecolor{dark-red}{rgb}{0.4,0.15,0.15}
\definecolor{dark-blue}{rgb}{0.15,0.15,0.4}
\definecolor{medium-blue}{rgb}{0,0,0.5}

%set up color for table of contents
\hypersetup{
    colorlinks, linkcolor={medium-blue},
    citecolor={dark-blue}, urlcolor={medium-blue}
}

\usepackage{tocloft}

%preven linebreak between subsection header and its content
\usepackage{titlesec}
\titleformat{\subsection}[runin]{\normalfont\bfseries}{\thesubsection.}{3pt}{}
\titleformat{\section}[runin]{\normalfont\bfseries}{\thesection.}{3pt}{}

\begin{document}

\setlength{\cftsecnumwidth}{8em} % Set numwidth of section
\setlength{\cftsubsecnumwidth}{12em} % Make subsection numwidth the same as section
\setlength{\cftsubsecindent}{\cftsecindent} % Make subsection indent the same as section

\tableofcontents 
\setlength{\parindent}{0pt}
\setlength{\parskip}{1ex}

    \newpage
    \phantomsection
    \section*{Problem 4.}
    \addcontentsline{toc}{section}
    {
        \numberline{Problem 4.}Let $T$ be a tree with $n > 1$ nodes. What is the maximum number of degrees one vertex $T$ can have?
        What his the minimum number of degree one vertex $T$ can have? Justify both answers.
    }
    Something
\end{document}

答案1

在这个特定的例子中，您需要删除\addcontentsline定义中包含的虚假空间：

\addcontentsline{toc}{section}
{% <------ Required
    \numberline{Problem 4.}Let $T$ be a tree with $n > 1$ nodes. What is the maximum number of degrees one vertex $T$ can have?
    What his the minimum number of degree one vertex $T$ can have? Justify both answers.
}

目录

还请注意hyperref抱怨：“PDF 字符串中不允许使用标记（PDFDocEncoding）：在输入行 XXX 上删除‘数学移位’”。这是因为$ $在目录条目中使用了数学内容，最终会出现在 PDF 书签中。要摆脱这种情况，hyperref请提供条件\texorpdfstring{<tex-string>}{<pdf-string>}。您可以按以下方式使用它：

\addcontentsline{toc}{section}
{% <------ Required
    \numberline{Problem 4.}Let \texorpdfstring{$T$}{T} be a tree with 
    \texorpdfstring{$n>1$}{n>1} nodes. What is the maximum number of degrees 
    one vertex \texorpdfstring{$T$}{T} can have? What his the minimum number 
    of degree one vertex \texorpdfstring{$T$}{T} can have? Justify both answers.
}

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