latex排版问题

Question

\documentclass[]{article}
\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhf{}
\title{My Father}
\date{}
\author{}
\begin{document}
\maketitle
My father was a self-taught mandolin player.
\end{document}
为什么用了\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhf{}三条指令以后，首页还是有“1”页脚。

Answer 1

\documentclass[]{article}

\usepackage{fancyhdr}

\pagestyle{fancy}

\fancyhf{}

\title{My Father}

\date{}

\author{}

\begin{document}

\maketitle

\thispagestyle{empty}

My father was a self-taught mandolin player. 

\end{document}

追问

为什么\fancyhf{}还不行，还要加\thispagestyle{empty}