如何才能消除页面顶部出现的每章标题?
\documentclass[12pt,a4paper]{book}
\usepackage[utf8]{inputenc}
\usepackage[spanish]{babel}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{lmodern}
\begin{document}
\chapter{chapter 1}
text 1
\newpage
text 2
\end{document}
实现1.