自定义章节和部分样式（scrbook）

Question 1

这是一个没有包的示例titlesec。

\documentclass[numbers=noenddot]{scrbook}[2015/10/03]
\usepackage[T1]{fontenc}
\usepackage{xcolor}
\usepackage{charter}

\definecolor{mybluei}{RGB}{28,138,207}
\definecolor{myblueii}{RGB}{131,197,231}

\addtokomafont{disposition}{\usefont{T1}{qhv}{b}{n}\selectfont\color{myblueii}}

\addtokomafont{chapter}{\fontsize{30pt}{30pt}\selectfont}
\newkomafont{chapternumber}{\fontsize{50}{120}\selectfont\color{white}}
\newkomafont{chaptername}{\itshape\rmfamily\small\color{white}}

\addtokomafont{section}{\fontsize{14pt}{14pt}\selectfont}
\newkomafont{sectionnumber}{\fontsize{18pt}{18pt}\selectfont\rmfamily\color{white}}

\addtokomafont{subsection}{\fontsize{12pt}{12pt}\selectfont}
\newkomafont{subsectionnumber}{\fontsize{16pt}{16pt}\selectfont\rmfamily\color{white}}

\renewcommand\chapterformat{%
  \raisebox{-6pt}{\colorbox{mybluei}{%
    \parbox[b][60pt]{45pt}{\centering%
      {\usekomafont{chaptername}{\chapapp}}%
      \vfill{\usekomafont{chapternumber}{\thechapter\autodot}}%
      \vspace{6pt}%
}}}\enskip}

\renewcommand\sectionformat{%
  \setlength\fboxsep{5pt}%
  \raisebox{-4pt}{\colorbox{mybluei}{%
    \enskip\usekomafont{sectionnumber}{\thesection\autodot}\enskip}%
  \quad%
}}

\renewcommand\subsectionformat{%
  \setlength\fboxsep{5pt}%
  \raisebox{-4pt}{\colorbox{mybluei}{%
    \enskip\usekomafont{subsectionnumber}{\thesubsection\autodot}\enskip}%
  \quad%
}}

\makeatletter
\renewcommand\sectionlinesformat[4]{%
  \makebox[0pt][l]{\rule[-5pt]{\textwidth}{1pt}}%
  \@hangfrom{#3}{#4}%
}
\makeatother

\usepackage{blindtext}% only for dummy text
\begin{document}
\tableofcontents
\chapter{Chapter Title}
\section{Section Title}
\blindtext
\addsec{Unnumbered Section Title}
\blindtext
\subsection{Subsection Title}
\blindtext
\subsubsection{Subsubsection Title}
\blindtext
\blinddocument
\end{document}

更新由于问题的更新：

要获取目录中的黑色章节条目，请使用

\addtokomafont{chapterentry}{\normalcolor}% entrys in tableofcontents not blue

如果所有小节都不应编号，请使用

\setcounter{secnumdepth}{\subsectionnumdepth}% subsubsection and lower unnumbered

下面是规则较低的示例：

\documentclass[numbers=noenddot]{scrbook}[2015/10/03]
\usepackage[T1]{fontenc}
\usepackage{xcolor}
\usepackage{charter}

\definecolor{mybluei}{RGB}{28,138,207}
\definecolor{myblueii}{RGB}{131,197,231}

\addtokomafont{disposition}{\usefont{T1}{qhv}{b}{n}\selectfont\color{myblueii}}

\addtokomafont{chapter}{\fontsize{30pt}{30pt}\selectfont}
\newkomafont{chapternumber}{\fontsize{50}{120}\selectfont\color{white}}
\newkomafont{chaptername}{\itshape\rmfamily\small\color{white}}
\addtokomafont{chapterentry}{\normalcolor}% entrys in tableofcontents not blue

\addtokomafont{section}{\fontsize{14pt}{14pt}\selectfont}
\newkomafont{sectionnumber}{\fontsize{18pt}{18pt}\selectfont\rmfamily\color{white}}

\addtokomafont{subsection}{\fontsize{12pt}{12pt}\selectfont}
\newkomafont{subsectionnumber}{\fontsize{16pt}{16pt}\selectfont\rmfamily\color{white}}

\setcounter{secnumdepth}{\subsectionnumdepth}% subsubsection and lower unnumbered

\renewcommand\chapterformat{%
  \raisebox{-6pt}{\colorbox{mybluei}{%
      \parbox[b][60pt]{45pt}{\centering%
        {\usekomafont{chaptername}{\chapapp}}%
        \vfill{\usekomafont{chapternumber}{\thechapter\autodot}}%
        \vspace{6pt}%
      }}}\enskip}

\renewcommand\sectionformat{%
  \setlength\fboxsep{5pt}%
  \colorbox{mybluei}{%
      \parbox{40pt}{\centering\usekomafont{sectionnumber}{\thesection\autodot}}}%
    \quad%
  }
  
\renewcommand\subsectionformat{%
  \setlength\fboxsep{5pt}%
  \colorbox{mybluei}{%
    \parbox{60pt}{\centering\usekomafont{subsectionnumber}{\thesubsection\autodot}}}%
\quad%
}

\makeatletter
\renewcommand\sectionlinesformat[4]{%
  \@hangfrom{\hspace*{#2}#3}{#4}%
  \ifstr{#1}{section}{%
    \par\nobreak%
    \ifstr{#3}{}{%
      \rule[\dp\strutbox]{\textwidth}{1pt}}{%
      \hspace*{50pt}\rule[\dp\strutbox]{\dimexpr\textwidth-50pt}{1pt}}%
  }{}%
  \ifstr{#1}{subsection}{%
    \par\nobreak%
    \ifstr{#3}{}{%
      \rule[\dp\strutbox]{\textwidth}{1pt}}{%
      \hspace*{70pt}\rule[\dp\strutbox]{\dimexpr\textwidth-70pt}{1pt}}%
  }{}%
}
\makeatother
    
\usepackage{blindtext}% only for dummy text
\begin{document}
  \tableofcontents
  \chapter{Chapter Title}
  \section{Section Title}
  \blindtext
  \addsec{Unnumbered Section Title}
  \blindtext
  \subsection{Subsection Title}
  \blindtext
  \subsubsection{Subsubsection Title}
  \blindtext
  \blinddocument
\end{document}

更新 2因为问题有第二次更新

您正在使用\parskip因此\par必须删除的垂直插入空间：

\makeatletter
\renewcommand\sectionlinesformat[4]{%
  \@hangfrom{\hspace*{#2}#3}{#4}%
  \ifstr{#1}{section}{%
    \parskip\z@% <- added, deactivates the parskip locally
    \par\nobreak
    \ifstr{#3}{}{%
      \rule[\dp\strutbox]{\textwidth}{1pt}}{%
      \hspace*{50pt}\rule[\dp\strutbox]{\dimexpr\textwidth-50pt}{1pt}}%
  }{}%
  \ifstr{#1}{subsection}{%
    \parskip\z@% <- added, deactivates the parskip locally
    \par\nobreak
    \ifstr{#3}{}{%
      \rule[\dp\strutbox]{\textwidth}{1pt}}{%
      \hspace*{70pt}\rule[\dp\strutbox]{\dimexpr\textwidth-70pt}{1pt}}%
  }{}%
}
\makeatother

一些补充说明：

不要\parskip手动设置！请改用 KOMA-Script 选项parskip=half-。此选项还有其他值，如half、half+和。有关更多说明，请half*参阅fullscrguien.pdf（KOMA-Script 文档）。

我建议使用包geometry设置页边距。

要获取目录中列表和参考书目的条目，请使用 KOMA-Script 选项listof=totoc和bibilography=totoc而不是\addcontentsline{toc}{chapter}{...}。

您重新定义了\chapterformat两次。决定要使用哪一个并删除另一个。

新定义的标题mychapterpagestyle在论文外面。

Answer