如何将附属机构放在双列模板中的一列脚注中？

Question

各位，能帮我解决两个问题吗：

1. 如何将两列模板中单列脚注中的单位按数字排序？即将第一张图片中的单位改为第二张图片的格式。
2. 如何让摘要的宽度为两栏？即把第一张图中摘要的宽度改为第二张图中的宽度。

为了方便起见，这里是 tex 代码，或者你可以直接访问背面。提前谢谢您。

\documentclass[8pt, twocolumn]{extarticle}
\usepackage{a4wide}

\usepackage{abstract}
\renewcommand{\abstractname}{}  
\renewcommand{\absnamepos}{empty}

\date{}
\begin{document} 
\title{\huge \bf Here is the title}
\author{AAA \thanks{A} \and BBB \thanks{B} \and CCC \thanks{C}}

\twocolumn[
  \begin{@twocolumnfalse}
    \maketitle
    \begin{abstract}
    % \textcolor{red}{approximately 150 words.}
    \noindent \textbf{Abstract goes here Abstract goes here Abstract goes here Abstract goes here Abstract goes here Abstract goes here}
    \end{abstract}
  \end{@twocolumnfalse}
]
\section*{}
introduction goes here 
\end{document}

Answer 1

我找到了解决这个问题的方法。希望这能解决你的问题。

\documentclass{article}
\usepackage[colorlinks=true,linkcolor=blue,urlcolor=blue,citecolor=blue]{hyperref}
\usepackage{orcidlink}
\usepackage[english]{babel}
\usepackage{abstract}
\usepackage{multicol,blindtext,microtype}
\usepackage[top=0.5in, left=1in,right=0.5in,bottom=0.5in]{geometry}
\newcommand{\footremember}[2]{%
\footnote{#2}
\newcounter{#1}
\setcounter{#1}{\value{footnote}}%
}
\newcommand{\footrecall}[1]{%
\footnotemark[\value{#1}]%
}
\newcommand*{\affaddr}[1]{#1} % No op here. Customize it for different styles.
\newcommand*{\affmark}[1][*]{\textsuperscript{#1}}
\newcommand*{\email}[1]{\texttt{#1}}
\title{\textbf{This is the title for someone who like to elaborate  discussion on pressing issues of people.}}
\author{%
\textbf{The Learner}\affmark[1] \orcidlink{0000-0002-0000-0000} \footremember{alley}{\affaddr{\affmark[1]Department of Mechanical Engineering, B. S Abdur Rahman Crescent Institute of Science and Technology, Vandalur, Chennai, Tamil Nadu, India }}%
\and \textbf{The confused}\affmark[2] \orcidlink{0000-0003-0000-0000} \footremember{trailer}{\affaddr{\affmark[2]Department of Metallurgy, Indian Institute of Technology, Chennai, Tamil Nadu, India }}%
\and \textbf{The admirer}\affmark[3] \orcidlink{0000-0004-0000-0000}  \footrecall{alley} \footnote{\affaddr{\affmark[3]Materials Science And Engineering, King Fahd University of Petroleum \& Minerals, Dhahran , Saudi Arabia } }%
\and \textbf{The successor}\affmark[4] \orcidlink{0000-0005-0000-0000} \footrecall{trailer} \footnote{\affaddr{\affmark[4]Department of Mechanical and Aerospace Engineering,  IITH Rd, Hyderabad, Telangana, India }}%
}
\renewenvironment{abstract}
{\par\noindent\textbf{\abstractname}\ \textendash\ \ignorespaces}
{\par\medskip}
\date{}
\renewcommand{\footnoterule}{%
\kern -3pt
\hrule width \textwidth height 0.5pt
\kern 2pt
}
\begin{document}
\maketitle
\begin{abstract}
    \textbf{This is the abstract for the journal I am aiming to publish. This abstract that I will write in this area will be elaborated from the left-hand side of the document. Hence to do so, I need to put some commands in the preamble, after which everything will be excellent.}
\end{abstract}
\begin{multicols}{2}
    \blindtext[3-5]
    \blindtext[6-8]
    \blindtext[9-11]
\end{multicols}
\end{document}