Number of section contains the number of the chapter

Question

In my table of contents, i have 2 chapters "chapter1 and chapter 2" the introduction of chapter 1 has a number 1.1 and in the chapter 2 it has a number 2.1 I ask please how can set only the number 1 to the introduction not 1.1 ? How can i begin the numerotation from section 1 not from the introduction ?

Answer 1

\documentclass{report}

\begin{document}

\tableofcontents

\chapter{zzz}

\section*{Introduction}
\addcontentsline{toc}{section}{Introduction \thechapter}

blah

\section{abc}
Abc
\section{abcd}
Abcd

\chapter{WWW}

\section*{Introduction}
\addcontentsline{toc}{section}{Introduction \thechapter}

blah

\section{abc}
Abc
\section{abcd}
Abcd


\end{document}