\% 符号会导致超长（永远？）编译

Question

当我尝试改进我的答案时，就会出现这个问题这个问题。

---

你可以很好地编译此代码

\documentclass[tikz]{standalone}
\usetikzlibrary{bending,decorations.text}
\begin{document}
\begin{tikzpicture}
\sffamily
\node (a) at (-2,0) {probability};
\node[align=center] (b) at (2,0) {percent\\change};
\draw[-latex,postaction={decorate,decoration={raise=1ex,text along path,text align=center,text={multiply by 100}}}] (a) to[out=60,in=120] (b);
\end{tikzpicture}
\end{document}

但不要编译此代码！

\documentclass[tikz]{standalone}
\usetikzlibrary{bending,decorations.text}
\begin{document}
\begin{tikzpicture}
\sffamily
\node (a) at (-2,0) {probability};
\node[align=center] (b) at (2,0) {percent\\change};
\draw[-latex,postaction={decorate,decoration={raise=1ex,text along path,text align=center,text={multiply by 100\%}}}] (a) to[out=60,in=120] (b);
\end{tikzpicture}
\end{document}

我已经等了200多秒

为什么？我只是想添加一个百分号（\%）！

我认为 Ti钾Z 理解我的\%，%但删除\会引发许多错误。

我甚至使用了siunitx，但得到了相同的结果。

\documentclass[tikz]{standalone}
\usetikzlibrary{bending,decorations.text}
\usepackage{siunitx}
\begin{document}
\begin{tikzpicture}
\sffamily
\node (a) at (-2,0) {probability};
\node[align=center] (b) at (2,0) {percent\\change};
\draw[-latex,postaction={decorate,decoration={raise=1ex,text along path,text align=center,text={multiply by \SI{100}{\percent}}}}] (a) to[out=60,in=120] (b);
\end{tikzpicture}
\end{document}

发生什么了？

Answer 1

您只需将其包装\%到即可{...}。

\documentclass[tikz]{standalone}
\usetikzlibrary{bending,decorations.text}
\begin{document}
\begin{tikzpicture}
\sffamily
\node (a) at (-2,0) {probability};
\node[align=center] (b) at (2,0) {percent\\change};
\draw[-latex,postaction={decorate,decoration={raise=1ex,text along path,text
align=center,text={multiply by 100{\%}}}}] (a) to[out=60,in=120] (b);
\end{tikzpicture}
\end{document}

Answer 2

您可以通过将%字符更改为不再是注释字符来完成此工作\catcode：

\documentclass[tikz]{standalone}
\usetikzlibrary{bending,decorations.text}
\begin{document}
\begin{tikzpicture}
\sffamily
\node (a) at (-2,0) {probability};
\node[align=center] (b) at (2,0) {percent\\change};
\begin{scope}
\catcode`\%=12
\draw[-latex,postaction={decorate,decoration={raise=1ex,text along path,text
align=center,text={multiply by 100%}}}] (a) to[out=60,in=120] (b);
\end{scope}
\end{tikzpicture}
\end{document}