问题
By default the "enumerate" environment is indented with respect to the current environment. How can I disable this indentation so that an enumerate environment of three items would produce the same output as the following piece of code?
\documentclass{article}
\begin{document}
\paragraph{1.}
\paragraph{2.}
\paragraph{3.}
\end{document}
回答1:
Your best bet is probably to use either the mdwlist package or the enumlist package.
Or this website suggests the use of the list environment like this:
\begin{list}{\labelitemi}{\leftmargin=1em}
\item First item in the list
\item Second item
\item and so on
\end{list}
which suggests that you could redefine the length leftmargin in your enumeration if you prefer. Something like:
\newenvironment{flushenum}{
\begin{enumerate}
\setlength{\leftmargin}{0pt}
}{\end{enumerate}}
which seems to work for me..
回答2:
This question appears to be dead, but in case somebody wanders across it as I did, there is also the paralist package which provides asparaitem and asparaenum environments, which do precisely this.
paralist also provides the inparaenum environment, which is designed for in-paragraph lists: something like "There are three ways to get there: one can (1) turn left, (2) turn right, or (3) go straight." You could use this environment and if you want you can insert your own paragraph breaks. This gives a flush enumerate but with indentation at the beginning of a paragraph. If it comes to that, maybe you should just use \paragraph.
回答3:
I compiled the three suggested methods into one file to be able to compare them side by side. Note that \setlength{\leftmargin}{0pt} does not have any effect on the "enumerate" environment. So far, the best solution is the "list" environment using the option "\leftmargin=1.4em". However, I do not like a constant number in my code for it makes the code fragile. Does anyone know how to compute this constant (1.4em) in terms of available LaTeX variables?
\documentclass{article}
\begin{document}
\section*{Paragraph}
\paragraph{1.} First
\paragraph{2.} Second
\paragraph{3.} Third
\section*{list}
\newcounter{itemcounter}
\begin{list}
{\textbf{\arabic{itemcounter}.}}
{\usecounter{itemcounter}\leftmargin=1.4em}
\item First
\item Second
\item Third
\end{list}
\section*{enumerate with leftmargin}
\begin{enumerate}
\renewcommand{\labelenumi}{\textbf{\theenumi}.}
\setlength{\leftmargin}{0pt}
\item First
\item Second
\item Third
\end{enumerate}
\end{document}
来源：https://stackoverflow.com/questions/1427005/how-to-disable-indentation-of-latex-list-items