更新:

更新:

我想学习 tikz,但由于我无法看到坐标,所以我需要在帮助线上绘制/显示步骤编号。我该如何实现?

\documentclass{standalone}
\usepackage{tikz}

\begin{document}
  \begin{tikzpicture}
    \draw[help lines, color=red!40, dashed, xstep=0.5cm,ystep=0.5cm] (-9.9,-9.9) grid (9.9,9.9);
    \draw[<->,ultra thin] (-9,0)--(9,0) node[right]{$x$};
    \draw[<->,ultra thin] (0,-9)--(0,9) node[above]{$y$};.
  \end{tikzpicture}
\end{document}

答案1

如果你想要这样的东西:

在此处输入图片描述

然后仅添加两行额外行\begin{tikzpicture}...\end{tikzpicture}

\tkzInit[xmax=10,ymax=10,xmin=-10,ymin=-10]
%\tkzGrid
\tkzAxeXY

当然使用\usepackage{tkz-euclide}

完整示例:

\documentclass{standalone}
\usepackage{tkz-euclide}

\begin{document}
  \begin{tikzpicture}
    \tkzInit[xmax=10,ymax=10,xmin=-10,ymin=-10]
    %\tkzGrid
    \tkzAxeXY
    \draw[help lines, color=red!40, dashed, xstep=0.5cm,ystep=0.5cm] (-9.9,-9.9) grid (9.9,9.9);
    \draw[<->,ultra thin, step=1cm] (-9,0)--(9,0) node[right]{$x$};
    \draw[<->,ultra thin] (0,-9)--(0,9) node[above]{$y$};.
  \end{tikzpicture}
\end{document}

更新:

\documentclass{standalone}
\usepackage{tkz-euclide}

\begin{document}
  \begin{tikzpicture}
    \tkzInit[xmax=10,ymax=10,xmin=-10,ymin=-10]
    %\tkzGrid
    \tkzAxeXY
    \draw[help lines, color=red!40, dashed, xstep=0.5cm,ystep=0.5cm] (-9.9,-9.9) grid (9.9,9.9);
    \draw[<->,ultra thin, step=1cm] (-9,0)--(9,0) node[right]{$x$};
    \draw[<->,ultra thin] (0,-9)--(0,9) node[above]{$y$};.
  \end{tikzpicture}
\end{document}

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