无论是自己写的模板还是下载的模板没有keywords

\newcommand\keywords[1]{\textbf{Keywords}: #1}

\keywords{keywords1， keywords2， keywords3.}

加上全文模板

\documentclass[11pt,a4paper]{article}

\usepackage[T1]{fontenc}

\usepackage[utf8]{inputenc}

\usepackage{authblk}

%关键字环境

\newcommand\keywords[1]{\textbf{Keywords}: #1}

\title{More than one Author with different Affiliations}

\author[a]{Author A}

\author[a]{Author B}

\author[a]{Author C \thanks{Corresponding author: email@mail.com}}

\author[b]{Author D}

\author[b]{Author E}

\affil[a]{Department of Computer Science, \LaTeX\ University}

\affil[b]{Department of Mechanical Engineering, \LaTeX\ University}

% 使用 \thanks 定义通讯作者

\renewcommand*{\Affilfont}{\small\it} % 修改机构名称的字体与大小

\renewcommand\Authands{ and } % 去掉 and 前的逗号

\date{} % 去掉日期

\begin{document}

\maketitle

\begin{abstract}

**********

\end{abstract}

%关键字

\keywords{keywords1， keywords2， keywords3.}

\end{document}