如何在信函标题中使用°等特殊字符

Question

如何设置带有 °（度数符号）的地址scrlttr2？

我们来看这个最小的例子：

\documentclass[fontsize=10pt,paper=a4,DIN]{scrlttr2}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\setkomavar{fromaddress}{%
    Main Street 1\\
    55555 Springfield)}
\setkomavar{fromname}{John Doe}
\begin{document}
\begin{letter}{Jack ° Jones \\
    2nd Street 15 \\
    55555 Springfield}
\opening{Hi Jack,}
\closing{Yours,}
\end{letter}
\end{document}

里面\begin{letter]有一个°在编译时引起问题

! Package inputenc Error: Unicode char \u8:° not set up for use with LaTeX.

当我尝试使用units类似这样的包时也会发生这种情况

\unit[99]{°}

或\textcelcius出textcomp。

Answer 1

您可以使用siunitx哪些优惠\degree和\celsius

\documentclass[fontsize=10pt,paper=a4,DIN]{scrlttr2}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{siunitx}
\setkomavar{fromaddress}{%
    Main Street 1\\
    55555 Springfield)}
\setkomavar{fromname}{John Doe}
\begin{document}
\begin{letter}{Jack \si{\degree} Jones \\
    2nd Street 15 \\
    55555 Springfield}
\opening{Hi Jack,}
\SI{99}{\celsius}
\closing{Yours,}
\end{letter}
\end{document}

Answer 2

utf8.deffrom 包inputenc仅支持在声明的输出编码之一中使用的字符。否则 LaTeX 不知道如何打印字符。在 encoding°中定义TS1，可以通过包加载textcomp：

\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage[utf8]{inputenc}

完整示例：

\documentclass[fontsize=10pt,paper=a4,DIN]{scrlttr2}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage[utf8]{inputenc}
\setkomavar{fromaddress}{%
    Main Street 1\\
    55555 Springfield)}
\setkomavar{fromname}{John Doe}
\begin{document}
\begin{letter}{Jack ° Jones \\
    2nd Street 15 \\
    55555 Springfield}
\opening{Hi Jack,}
\closing{Yours,}
\end{letter}
\end{document}