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- \documentclass[varwidth=true, border=2pt]{standalone}
- \usepackage{tikz}
- \usetikzlibrary{arrows,positioning}
- \begin{document}
- \tikzstyle{vertexs}=[draw,fill=black,circle,minimum size=4pt,inner sep=0pt]
- \begin{tikzpicture}
- \foreach \x in {0,1,2}
- \foreach \y in {0,1,2}{
- \node (a)[vertexs] at (\y,0) {};
- \node (b)[vertexs] at (\x,1) {};
- \draw (a) -- (b);
- }
- % \foreach \x in {0,1,2}{
- % \draw (\x,0) circle (2pt);
- % \draw (\x,1) circle (2pt);
- % }
- \end{tikzpicture}
- \end{document}
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