> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/latex/zh-cn/latex-cuo-wu/20-latex-error-unknown-float-option-q.md).

# LaTeX 错误：未知的浮动体选项 \`q'

当使用 LaTeX 无法识别的浮动体选项时，会出现此错误。每当你使用一个 *float* 例如图或表，即 **`h`** 中插入一个 **`\begin{figure}[h]`**。你能够使用的唯一有效浮动体说明符是 **`h`**, **`t`**, **`b`** 和 **`页`**，再加上 **`H`** 如果你包含 **`\usepackage{float}`** 在我们的导言区中。如果你在方括号中写入 LaTeX 无法识别的浮动体说明符，它会生成如下所示的错误。

main.tex，第 5 行

LaTeX 错误：未知的浮动体选项 \`q'。

有关说明，请参阅 LaTeX 手册或 LaTeX Companion。输入 H 可立即获得帮助。... l.5 \begin{figure}\[q] 选项 \`q' 被忽略，使用了 \`p'。

要了解更多有关如何使用选项来指定浮动体位置的信息，请查看我们的 [文档](/latex/zh-cn/tu-biao-he-biao-ge/02-positioning-images-and-tables.md).


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