fancyhdr设置页眉页脚

\documentclass{book}
\usepackage{amsmath,amsfonts,amssymb,amsthm}
\usepackage{multicol}

\usepackage{fancyhdr}
\pagestyle{fancy}
\renewcommand{\chaptermark}[1]{\markboth{#1}{}}
\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}
\fancyhf{}
\fancyfoot[C]{\bfseries \thepage}
\fancyhead [LO]{\bfseries \rightmark}
\fancyhead[RE]{\bfseries \leftmark}
\renewcommand{\headrulewidth}{0.4pt}% not \setlength
\renewcommand{\footrulewidth}{0pt}

\begin{document}

\fancypagestyle{myfancy}{%
 \fancyhf{}
 \fancyhead{123}
 \fancyfoot{234}
}
%
\pagestyle{myfancy}

123
234

\end{document}  

参考文献的存放和引用biblatex:

%File: demo.tex
\documentclass{ctexart}
\usepackage[style=gb7714-2015]{biblatex}
\addbibresource{egbibdata.bib}

\begin{document}

see in document \cite{caimin2006}

\printbibliography
\end{document}


%File: egbibdata.bib
@book{caimin2006,
    title   ={UML}
    address ={PK}
    author  ={caimin and Xvhuihui}
    publisher   ={renmin}
    year    ={2006}
    month   ={1}
}

输出中文(xeCJK库)加调颜色：

\documentclass{book}
\usepackage{makeidx}
\usepackage{xcolor}
\usepackage{xeCJK}
\begin{document}

\large\sffamily
{\color{red!40} 40 \% 红色}\\
{\color{red!40} 蓝色
\color{blue!50!black}蓝黑
\color{black}黑色}\\
{\color{-red}红色的互补色}

\end{document}

 

（真的是各种报错，那latex画表格，做盒子，调字体，还画图 简直把这些年学的集大成了）究极麻烦无比！