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# 字体字形

## 引言

默认情况下，LaTeX 使用以下字体族来排版文档 $$\text{Computer Modern}$$ 字体族，但你可以根据需要或偏好使用 LaTeX 宏包来使用不同的字体。

## 更改文档的默认字体

例如，添加 `\usepackage{tgbonum}` 到文档导言区，LaTeX 将使用 TEX Gyre Bonum 字体族来排版你的文档：

```latex
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{tgbonum}

\begin{document}
本文档是一个用于测试字体的示例文档
字体族和字体字形。

这段文字使用了不同的字体字形
\end{document}
```

[在 Overleaf 中打开此示例](https://www.overleaf.com/docs?engine=pdflatex\&snip_name=Change+LaTeX+fonts\&snip=%5Cdocumentclass%7Barticle%7D%0A%5Cusepackage%5BT1%5D%7Bfontenc%7D%0A%5Cusepackage%7Btgbonum%7D%0A%0A%5Cbegin%7Bdocument%7D%0AThis+document+is+a+sample+document+to+test+font+%0Afamilies+and+font+typefaces.%0A%0AThis+text+uses+a+different+font+typeface%0A%5Cend%7Bdocument%7D)

下图显示了上面示例生成的输出：

![FontTypefacesEx1OLV2.png](/files/aeaefcf794c427f9dac3cd7d6d0c72cd4c47a1a1)

## 更改默认字体字形

也可以为文档中的特定元素更改字体。

```latex
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{tgbonum}

\begin{document}
本文档是一个用于
测试字体族和字体字形的示例文档。

{\fontfamily{qcr}\selectfont
这段文字使用了不同的字体字形
}
\end{document}
```

[在 Overleaf 中打开此示例](https://www.overleaf.com/docs?engine=pdflatex\&snip_name=Change+LaTeX+fonts\&snip=%5Cdocumentclass%7Barticle%7D%0A%5Cusepackage%5BT1%5D%7Bfontenc%7D%0A%5Cusepackage%7Btgbonum%7D%0A%0A%5Cbegin%7Bdocument%7D%0AThis+document+is+a+sample+document+to+%0Atest+font+families+and+font+typefaces.%0A%0A%7B%5Cfontfamily%7Bqcr%7D%5Cselectfont%0AThis+text+uses+a+different+font+typeface%0A%7D%0A%5Cend%7Bdocument%7D)

下图显示了上面示例生成的输出：

![FontTypefacesEx2.png](/files/b784285e18cc2935d97a5500e6f1d962a0accbbd)

命令 `\fontfamily{qcr}\selectfont` 将设置 *TeX Gyre Cursor* 字体字形，其字体代码为 `qcr`，用于花括号内的文本。还有更多可用的 LaTeX 字体字形，参见 [参考指南](#reference-guide).

常用的 LaTeX 字体字形源自四个字体族：

* *Computer Modern* （标准 LaTeX 类中的默认字体）：CM Roman、CM Sans Serif、CM Typewriter
* *Latin Modern*：LM Roman、LM Sans Serif、LM Typewriter、LM Dunhill
* *Post Script Fonts*：Times、Utopia/Fourier、Palatino、Bookman、Helvetica、Courier
* *TeX Gyre*

## 参考指南

**罗马体、无衬线体和打字机体字形**

| 字体                           | “字体宏包名称”             | “字体代码” | 示例                                                                    |
| ---------------------------- | -------------------- | ------ | --------------------------------------------------------------------- |
| Computer Modern Roman        |                      | `cmr`  | ![Typeface-cmr.png](/files/17354bb40426f23200de9b8f5a7be1fb142224eb)  |
| Latin Modern Roman           | `lmodern`            | `lmr`  | ![Typeface-lmr.png](/files/e0141a67eb1f079ba3efc12507dc0ea23dd94e11)  |
| Latin Modern Dunhill         | `lmodern`            | `lmdh` | ![Typeface-lmdh.png](/files/700c279f249cad0587628762d42dfc17465fe140) |
| TeX Gyre Termes              | `tgtermes`           | `qtm`  | ![Typeface-qtm.png](/files/9fa80b58d80f573e3f4bbe4db2acec7dd2f27dec)  |
| TeX Gyre Pagella             | `tgpagella`          | `qpl`  | ![Typeface-qpl.png](/files/a918d84144293c9a244c0b066977ecc3d255a15d)  |
| TeX Gyre Bonum               | `tgbonum`            | `qbk`  | ![Typeface-qbk.png](/files/3f379e9811f6aad9df07096793ad408178454ea2)  |
| TeX Gyre Schola              | `tgschola`           | `qcs`  | ![Typeface-qsc.png](/files/bf368f6b6d80864a020c73a6010a024024f05074)  |
| Times                        | `mathptmx`           | `ptm`  | ![Typeface-ptm.png](/files/154fd747c1b1bb7e2a69d6fd482cccc740d3f63a)  |
| Utopia / Fourier             | `utopia` / `fourier` | `put`  | ![Typeface-put.png](/files/af082b31a58efe2b8eb2c3e0c52ff3b91afa8983)  |
| Palatino                     | `palatino`           | `ppl`  | ![Typeface-ppl.png](/files/fa88c27e0c84d0ceee16b86bf80cbed491d92ea2)  |
| Bookman                      | `bookman`            | `pbk`  | ![Typeface-pbk.png](/files/bb7aff36f01a13ebb86347db12d2d9be0a11fa22)  |
| Charter                      | `charter`            | `bch`  | ![Typeface-bch.png](/files/20061da81ed69b201cb48c3f1369a55b761c634a)  |
| Computer Modern Sans Serif   |                      | `cmss` | ![Typeface-cmss.png](/files/25ccb6de181b5db386bd3cef0f697379c1f22978) |
| Latin Modern Sans Serif      | `lmodern`            | `lmss` | ![Typeface-lmss.png](/files/9d824f93e3b848b9320fafacf47e0b214e14b8d7) |
| TeX Gyre Adventor            | `tgadventor`         | `qag`  | ![Typeface-qag.png](/files/80856665e486c3d43f823bec377cef4719a0d905)  |
| TeX Gyre Heros               | `tgheros`            | `qhv`  | ![Typeface-qhv.png](/files/ca5993ac75339b27547fb511255653f993f6e0cc)  |
| Helvetica                    | `helvet`             | `phv`  | ![Typeface-phv.png](/files/c0a3d0fe489b515a253a28896065f3591e40b89c)  |
| Computer Modern Typewriter   |                      | `cmtt` | ![Typeface-cmtt.png](/files/107e671b677b606e7b0e3895c915c5dc17bc5b27) |
| Latin Modern Sans Typewriter | `lmodern`            | `lmtt` | ![Typeface-lmtt.png](/files/bd2ed592b2bb9ec4678e70880cfd82d571385302) |
| TeX Gyre Cursor              | `tgcursor`           | `qcr`  | ![Typeface-qcr.png](/files/ff50ce55353c1acd47d3cd28f8023f8c2c8ff281)  |
| Courier                      | `courier`            | `pcr`  | ![Typeface-pcr.png](/files/c7cf852e8191e9f0a238b140597f76d6cbb3f298)  |

另请参见 [LaTeX 字体目录](https://tug.org/FontCatalogue/)，不过请注意，目录中列出的并非所有字体都以允许作为 TeX Live 一部分分发的许可发布，因此并非所有这些字体都可在 Overleaf 上使用。

## 进一步阅读

更多信息请参见：

* [LaTeX 字体目录](https://tug.org/FontCatalogue/).
* [粗体、斜体和下划线](/latex/zh-cn/latex-ji-chu/03-bold-italics-and-underlining.md)
* [字体大小、字体族和样式](/latex/zh-cn/zi-ti/01-font-sizes-families-and-styles.md)
* [使用 XeLaTeX 支持现代字体](/latex/zh-cn/zi-ti/03-xelatex.md)
* [段落格式设置](/latex/zh-cn/ge-shi-hua/04-articles-how-to-change-paragraph-spacing-in-latex.md)
* [换行和空格](/latex/zh-cn/ge-shi-hua/05-line-breaks-and-blank-spaces.md)
* [多栏排版](/latex/zh-cn/ge-shi-hua/09-multiple-columns.md)
* [单面和双面文档](/latex/zh-cn/ge-shi-hua/08-single-sided-and-double-sided-documents.md)
* [大型项目中的管理](/latex/zh-cn/wen-dang-jie-gou/07-management-in-a-large-project.md)
* [多文件 LaTeX 项目](/latex/zh-cn/wen-dang-jie-gou/08-multi-file-latex-projects.md)


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