R-Markdown：無襯線字體

Question

我正在使用以下降價標頭。 不幸的是，我的 pdf 中的字體仍然有襯線。 我怎樣才能在全球范圍內改變它？ （我試過\\usepackage{uarial}以及mainfont: Arial ）

---
title: "Title"
author: "Author name"
header-includes:
- \usepackage[ngerman]{babel}
- \usepackage{uarial}
output:
  pdf_document:
    toc: yes
    toc_depth: 3
    number_sections: yes
  word_document:
    toc: yes
    toc_depth: '3'
mainfont: Arial
fontsize: 13pt
documentclass: article
---

Answer 1

嘗試更新命令\\familydefault 。

---
title: "Title"
author: "Author name"
header-includes:
- \usepackage[ngerman]{babel}
- \renewcommand{\familydefault}{\sfdefault}
output:
  pdf_document:
    toc: yes
    toc_depth: 3
    number_sections: yes
  word_document:
    toc: yes
    toc_depth: '3'
mainfont: Arial
fontsize: 13pt
documentclass: article
---

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