事实上，我想删除页面开头的空格，代码如下：
\documentclass[12pt,stdletter,orderfromtodate,sigleft]{newlfm}
\usepackage{blindtext, xfrac}
\setlength\parindent{1cm}
\newlfmP{dateskipbefore=50pt}
\newlfmP{sigsize=50pt}
\newlfmP{sigskipbefore=50pt}
\newlfmP{Headlinewd=0pt,Footlinewd=0pt}
\date{}
\usepackage{etoolbox} \makeatletter \patchcmd{\@zfancyhead}{\fancy@reset}
{\f@nch@reset}{}{} \patchcmd{\@set@em@up}{\f@ncyolh}{\f@nch@olh}{}{}
\patchcmd{\@set@em@up}{\f@ncyolh}{\f@nch@olh}{}{} \patchcmd{\@set@em@up}
{\f@ncyorh}{\f@nch@orh}{}{} \makeatother
\begin{document}
\begin{newlfm}
\blindtext
\Blindtext
\end{newlfm}
\end{document}