![\ref 到表环境显示为 ?? 尽管所有内容都是正确的](https://linux22.com/image/448013/%5Cref%20%E5%88%B0%E8%A1%A8%E7%8E%AF%E5%A2%83%E6%98%BE%E7%A4%BA%E4%B8%BA%20%3F%3F%20%E5%B0%BD%E7%AE%A1%E6%89%80%E6%9C%89%E5%86%85%E5%AE%B9%E9%83%BD%E6%98%AF%E6%AD%A3%E7%A1%AE%E7%9A%84.png)
我在 Latex 中有一个非常基本的表,创建它然后尝试引用如下:
\documentclass{report}
\usepackage[british]{babel}
\usepackage{cleveref}
\usepackage[T1]{fontenc}
\begin{document}
\begin{table}[!th]
\centering
\caption{Credibility of selected library databases.}\label{tab:library-databases}
\begin{tabular}{| c | p{7.5cm} |}
\hline
\multicolumn{1}{| c |}{\textbf{Library database}}
& \multicolumn{1}{c |}{\textbf{Credibility}}\\
\hline
Birmingham City University Library & Part of Birmingham City University, which was established in the UK in
1843.
Contains a large amount of resources including database access. \\ \hline
Google Scholar & Used primarily to access literature already hosted on other library databases.
The site does not contain the ability to restricting searching to only peer-reviewed databases, and thus
could have unreliable content. \\ \hline
EBSCOhost Research Databases & EBSCOhost hosts high-quality, peer-reviewed content from publishers
recognised by library professionals. \\ \hline
IEEE Xplore & Launched in May 2000, this resource primarily contains peer-reviewed materials published by the Institute of Electrical and
Electronics Engineers (IEEE) and other partners.
As the resourced are peer reviewed, they can be seen as reliable.\\ \hline
ResearchGate & ResearchGate restricts its users to published researchers and people at recognised
institutions and is a widely accredited library database. \\ \hline
JSTOR & Part of ITHAKA, a non-profit organisation.
A digital library including thousands of academic journals, books, and primary source documents. \\
\hline
\end{tabular}
\end{table}
Several library databases which will be used have been
identified, and can be found in Table~\ref{tab:library-databases}.
\end{document}
表格本身生成得很好,并按Table n
应有的形式给出了一个增量数字。然而,在多次编译代码后,输出的 PDF 中却显示为 ??:
这看起来似乎是一件很基本的事情,但我无论如何也想不通为什么我不能简单地\ref
创建表格。
奇怪的是,当我在环境中创建表格时,它工作正常figure
,但我需要为此特定提交有一个表格列表,并且需要能够在环境中创建表格table
,因为我的表格和图形需要分开。
如果有任何用处的话,我的 LaTeX 发行版是 MikTeX。
任何帮助都将受到赞赏。