我怎样才能使我的列表（枚举）与段落的开头对齐？

Question

我在将列表左侧与段落左侧对齐时遇到问题。这是我当前的代码：

代码：

\documentclass[draft, 12pt]{article}
\usepackage{fullpage}
\usepackage{enumitem}
\parindent = 0pt

\begin{document}

This is a random and long sentence that apparently takes up two lines just so that I 
can see what happens with alignment and indentation. Note my \texttt{parindent = 0pt}.

\begin{enumerate}
    \item This is list one first item.
\end{enumerate}

\begin{enumerate}[leftmargin = 0pt]
    \item This is list two first item.
\end{enumerate}

\end{document}

视觉表现：

      这是一个随机的长句子，显然占用了两行，只是为了让我看看对齐和缩进会发生什么。请注意我的 parindent = 0pt。

           1. 这是列表一的第一项。

1. 这是列表二的第一项。

Answer 1

解决方案取决于您期望列表中有多少个项目。如果项目数量为 9 或更少，请使用：

labelindent=0pt,labelwidth=0.75em,leftmargin=!

但对于 10 到 99 你应该使用更大的labelwidth=1.25em

笔记：

• 包裹showframe​ 仅用于显示页边距。实际使用中不需要它。
• 手动设置\parskip被认为是“致命的错误”更改 \parskip 长度时列表前的空格过多。 使用包裹parskip​反而。
• 水平间距参数的一个很好的参考是有人可以解释一下 enumitem 水平间距参数吗？。

代码：

\documentclass[draft, 12pt]{article}
\usepackage{fullpage,showframe}
\usepackage{enumitem}
%\parindent = 0pt
\usepackage[parfill]{parskip}% Use this instead of \parindent = 0pt

\begin{document}

This is a random and long sentence that apparently takes up two lines just so that I 
can see what happens with alignment and indentation. Previously \verb|parindent = 0pt|, but
now this uses the \verb|parskip| package.

\begin{enumerate}[labelindent=0pt,labelwidth=1.25em,leftmargin=!]
    \item This is list one first item.
    \item This is list one second item.
    \item \ldots
    \item[9.] This is list one ninth item.
    \item[10.] This is list one tenth item.
\end{enumerate}

\bigskip
If you don't expect to go past 9 then use:
\begin{enumerate}[labelindent=0pt,labelwidth=0.75em,leftmargin=!]
    \item This is list two first item.
    \item \ldots
    \item[9.] This is list two ninth item.
\end{enumerate}

\end{document}

Answer 2

您还可以使项目编号左对齐，从而与文本区域的左侧对齐，使用以下wide选项：

\documentclass[draft, 12pt]{article}
\usepackage[showframe, nomarginpar]{geometry}
\usepackage{enumitem}

\usepackage{lipsum}
\begin{document}

This is a random and long sentence that apparently takes up two lines just so that I
can see what happens with alignment and indentation.

\noindent
\begin{enumerate}[wide = 0pt, labelwidth = 1.3333em, labelsep = 0.3333em, leftmargin = \dimexpr\labelwidth + \labelsep\relax ]%
    \item This is list one first item.
    \item This is list one second item.
    \item \ldots
    \item[9.] \lipsum[9]
    \item[10.] \lipsum[10]
\end{enumerate}

\end{document}