> 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-tw/latex-cuo-wu/20-latex-error-unknown-float-option-q.md).

# LaTeX 錯誤：未知的浮動體選項 \`q'

當使用了 LaTeX 無法辨識的浮動選項時，就會出現這個錯誤。每當你使用一個 *浮動體* 例如圖或表，也就是說是 **`h`** 在 **`\begin{figure}[h]`**。你能使用的唯一有效浮動體指定符號是 **`h`**, **`t`**, **`b`** 以及 **`p`**，再加上 **`H`** 如果你包含 **`\usepackage{float}`** 於導言區中。如果你在方括號中寫入 LaTeX 無法辨識的浮動體指定符號，它就會產生如下所示的錯誤。

main.tex，第 5 行

LaTeX 錯誤：未知的浮動選項 \`q'。

請參閱 LaTeX 手冊或 LaTeX Companion 以取得說明。輸入 H 以獲得即時說明。... l.5 \begin{figure}\[q] 選項 \`q' 已忽略，並使用了 \`p'。

若要進一步了解如何使用選項來指定浮動位置，請查看我們的 [說明文件](/latex/zh-tw/tu-biao-yu-biao-ge/02-positioning-images-and-tables.md).


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