有关章节样式的问题

Question

我想获得如下章节的风格：

\documentclass[12pt,a4paper]{report}

\usepackage{fancyhdr}
\pagestyle{fancy}

\rhead{\textbf{\thepage}}
\lhead{\textsl{\nouppercase{\leftmark}}}%
\setlength{\headheight}{14.5pt}

\begin{document}

\chapter*{Thanks}
\chapter{Chapter one}

\begin{thebibliography}{999} 
\newpage
\bibitem{axlupol}{O. Axelsson, H. Lu, B. Polman,} {On the numerical radius of matrices and its application to iterative solution methods,} Linear Multilinear Algebra 37 (1994) 225-238. 
\end{thebibliography}

\end{document} 

我的目标是获得

Answer 1

使用 Ti 的尝试钾Z：

\documentclass{report}
\usepackage[margin=3cm]{geometry}
\usepackage[explicit]{titlesec}
\usepackage{tikz}
\usetikzlibrary{positioning}
\titleformat{\chapter}{}{}{0pt}{
    \begin{tikzpicture}
        \fill[black] (-0.7,-2) rectangle (0.7,2);
        \draw[color=white] (0,1) node {\bfseries\Huge\thechapter};
        \draw (0,2.5) node {\Large Chapter};
        \draw (1,0)--(13,0);
        \coordinate (start) at (1,0);
        \node[below right=5mm and 0cm of start.center] {\bfseries\Huge #1};
    \end{tikzpicture}
}
\begin{document}
\chapter{Introduction}
\end{document}

你不应该使用它\chapter*{}，因为它不起作用！相反，试试这个代码：

\documentclass{report}
\usepackage[margin=3cm]{geometry}
\usepackage[explicit]{titlesec}
\usepackage{tikz}
\usetikzlibrary{positioning}
\titleformat{\chapter}{}{}{0pt}{
    \begin{tikzpicture}
        \fill[black] (-0.7,-1.5) rectangle (0.7,1.5);
        % Change to \fill (-0.7,-2) rectangle (0.7,2); if you want the black rectangle to be longer
        \draw[color=white] (0,0.5) node {\bfseries\Huge\thechapter};
        % Change to (0,1) if the black rectangle is changed in \fill
        \draw (0,2) node {\Large Chapter};
        % Change to (0,2.5) if the black rectangle is changed in \fill
        \draw (1,0)--(13,0);
        \coordinate (start) at (1,0);
        \node[below right=5mm and 0cm of start.center] {\bfseries\Huge #1};
    \end{tikzpicture}
}
\begin{document}
\chapter{Introduction}
\newpage
\begin{tikzpicture}
    \fill[black] (-0.7,-1.5) rectangle (0.7,1.5);
        % Change to \fill (-0.7,-2) rectangle (0.7,2); if you want the black rectangle to be longer
        \draw (1,0)--(13,0);
        \coordinate (start) at (1,0);
        \node[below right=5mm and 0cm of start.center] {\bfseries\Huge Thanks!};
\end{tikzpicture}
\end{document}

虽然你会添加一段不那么短的代码，但我认为这是可以的。因为当\chapter以这种方式定义时，\thechapter被放置在 Ti钾Z图，因此\chapter*失去了它本身的功能。

如果你能将我的答案改进为更好的答案，你的编辑，或者更确切地说，你的答案将不胜感激！