我有以下案例:
\usepackage{lipsum}%% a garbage package you don't need except to create examples.
\usepackage{fancyhdr}
\pagestyle{fancy}
\cfoot{My Name}
\renewcommand{\footrulewidth}{0.4pt}
\begin{document}
\thispagestyle{empty}
\lipsum[1-20]
我如何更改页脚以便页码也自动编号?