%---- Print  format ---
\documentclass[aps,prd,preprint]{revtex4}
\setlength{\textwidth}{17cm}
\setlength{\leftmargin}{-2cm}
\setlength{\evensidemargin}{-1cm}
\setlength{\oddsidemargin}{-0.5cm}
\setlength{\textheight}{21cm}
\setlength{\topmargin}{-15mm} 
\setlength{\parskip}{1pt}
\setlength{\parindent}{2ex}

\begin{document}

%auto-ignore
This paper has been withdrawn by the author,due a immature idea.

\end{document}

