花括号显示错误

Question

我正在尝试使用该包lstlisting，并且大部分代码都显示正确。

但字符_、{和}被替换为其他字符。字符_被替换为"，{被替换为-依此类推。

你知道出了什么问题吗？

\documentclass{article}
\usepackage{beramono}
\usepackage{xcolor}
\usepackage{listings}
\lstset{language=C, commentstyle=\color{green},
backgroundcolor=\color{white}, keywordstyle=\color{blue}, 
basicstyle = \ttfamily \color{black} \footnotesize  } 
\begin{document}
\begin{lstlisting}[]
int main(int argc, char* argv){
int niter=0;
int i,count=0; 
double z,pi,x,y;
#pragma omp parallel for
    for (i=0; i<niter; i++) {
        x = (double)rand()/RAND_MAX;
        y = (double)rand()/RAND_MAX;
        z = x*x+y*y;
        if (z<=1)
            count++;
    }  
#pragma omp task
    pi=(double)count/niter*4;
}
\end{lstlisting}
\end{document}

Answer 1

如果你有

\documentclass{article}
\usepackage{beramono}
\usepackage{xcolor}
\usepackage{listings}
\lstset{language=C, commentstyle=\color{green},
backgroundcolor=\color{white}, keywordstyle=\color{blue}, 
basicstyle = \ttfamily \color{black} \footnotesize  } 
\begin{document}
\begin{lstlisting}[]
int main(int argc, char* argv){
int niter=0;
int i,count=0; 
double z,pi,x,y;
#pragma omp parallel for
    for (i=0; i<niter; i++) {
        x = (double)rand()/RAND_MAX;
        y = (double)rand()/RAND_MAX;
        z = x*x+y*y;
        if (z<=1)
            count++;
    }  
#pragma omp task
    pi=(double)count/niter*4;
}
\end{lstlisting}
\end{document}

你收到警告

LaTeX Font Warning: Font shape `OT1/fvm/m/n' undefined
(Font)              using `OT1/cmr/m/n' instead on input line 9.

因为 Bera Mono 字体只适用于 T1 编码。事实上，列表使用的字体是默认的文本字体，其位置上的字符与_|{}。

如果您不想将 T1 设为默认文档编码，您可以仅为以下情况启用它listings：

\documentclass{article}
\usepackage{beramono}
\usepackage{xcolor}
\usepackage{listings}

\lstset{
  language=C,
  commentstyle=\color{green},
  backgroundcolor=\color{white},
  keywordstyle=\color{blue}, 
  basicstyle = \fontencoding{T1}\ttfamily \color{black} \footnotesize,
} 

\begin{document}

\begin{lstlisting}[]
int main(int argc, char* argv){
int niter=0;
int i,count=0; 
double z,pi,x,y;
#pragma omp parallel for
    for (i=0; i<niter; i++) {
        x = (double)rand()/RAND_MAX;
        y = (double)rand()/RAND_MAX;
        z = x*x+y*y;
        if (z<=1)
            count++;
    }  
#pragma omp task
    pi=(double)count/niter*4;
}
\end{lstlisting}

\end{document}

但是，如果您在文档的其他部分使用\texttt或，则会遇到同样的问题，因此最简单的解决方法是全局启用：\ttfamilyT1

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{beramono}
\usepackage{xcolor}
\usepackage{listings}

\lstset{
  language=C,
  commentstyle=\color{green},
  backgroundcolor=\color{white},
  keywordstyle=\color{blue}, 
  basicstyle = \ttfamily \color{black} \footnotesize,
} 

\begin{document}

\begin{lstlisting}[]
int main(int argc, char* argv){
int niter=0;
int i,count=0; 
double z,pi,x,y;
#pragma omp parallel for
    for (i=0; i<niter; i++) {
        x = (double)rand()/RAND_MAX;
        y = (double)rand()/RAND_MAX;
        z = x*x+y*y;
        if (z<=1)
            count++;
    }  
#pragma omp task
    pi=(double)count/niter*4;
}
\end{lstlisting}

\end{document}