\documentclass{ctexart}
\usepackage{listings}
\lstset{breaklines}
\begin{document}
	\lstset{xleftmargin=0em,xrightmargin=0em}
	\begin{lstlisting}
		\documentclass[AutoFakeBold,a4paper,zihao=-4]{weilida_2}
		\usepackage{geometry}
		\geometry{left=3.17cm,right=3.17cm,top=2.54cm,bottom=2.54cm}
	\end{lstlisting}
	\begin{equation}\label{label1}
		z = \frac{x}{y}
	\end{equation}

	
	\begin{equation}\label{label2}
		C_1 \quad= \quad c_2 + c_4^3
	\end{equation}
	

	\begin{equation}\label{label3}
		y = \sqrt {x_1^2 + x_2^2 + x_3^2 + x_4^2}
	\end{equation}
	\begin{equation}\label{label4}
		y = \sqrt [3]{x_1^2 + x_2^2 + x_3^2 + x_4^2}
	\end{equation}

	\begin{equation}\label{label5}
		\overrightarrow{AB} = \overrightarrow{b} + \overrightarrow{a}
	\end{equation}

	\begin{equation}\label{label6}
		c = a \cdot c 
	\end{equation}

	\begin{equation}\label{label7}
		\lim_{0\rightarrow x} \sin(x+y)
	\end{equation}

	\begin{equation}\label{label8}
		\int_{0}^{\frac{\pi}{2}}
	\end{equation}

	\begin{equation}\label{label9}
		\sum_{i=1}^{n}
	\end{equation}

	\begin{equation}\label{label10}
		\prod_\epsilon
	\end{equation}

	\begin{equation}\label{label11}
		\left(                 
		\begin{array}{ccc}   
			a11 & a12 & a13\\ 
			a21 & a22 & a23\\  
		\end{array}
		\right)              
	\end{equation}

	\begin{equation}\label{label12}
		\left|                
		\begin{array}{ccc}   
			a11 & a12 & a13\\ 
			a21 & a22 & a23\\  
		\end{array}
		\right|             
	\end{equation}
	引用公式\ref{label1}
\end{document}