\@next 的使用与其定义不符

Question

我收到错误：

Use of \@next doesn't match its definition

使用以下 TikZ 代码：

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
  \coordinate (A) at (0,0);
  \coordinate (B) at (10,0);
  \coordinate[label=above:C] (C) at (A).5(B);
  \draw[dashed] (A) -- (B);
\end{tikzpicture}
\end{document} 

Answer 1

(A).0.5(B) 是错误的语法。你的意思可能是这样的：

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calc}
\begin{document}
\begin{tikzpicture}
  \coordinate (A) at (0,0);
  \coordinate (B) at (10,0);
  \coordinate[label=above:C] (C) at ($(A)!.5!(B)$);
  \draw[dashed] (A) -- (B);
\end{tikzpicture}
\end{document}