这是我在这里的第一个问题。我读了很多主题，但没有一个能解决我的问题。
我需要使用设置拆分表格（使用longtable或其他）tabularx。我尝试过ltablex，但这会更改文本中的所有其他表格。我也尝试过LTXtable，但我想我不知道如何正确使用它。
下面是使用的代码和外观tabularx，因为我希望它继续使用 longtable。
\documentclass{article}
\usepackage{booktabs}
\usepackage{tabularx}
\usepackage{array}
\usepackage{float}
\begin{document}
\begin{table}[H]
\centering
\small
\caption{Planejamento experimental.}
\label{tab:MatrizPlanExp}
\newcolumntype{C}{>{\centering\arraybackslash\hsize=1\hsize}X}
\renewcommand{\arraystretch}{1.15} % Espaçamento
\begin{tabularx}{\textwidth}{CCC}
\toprule
\textbf{Experimento nº} & \textbf{Temperatura (°C)} & \textbf{WHSV (h$^{-1}$)} \\
\midrule
1 & 240 & 40 \\
2 & 240 & 45 \\
3 & 240 & 50 \\
4 & 240 & 55 \\
5 & 240 & 60 \\
6 & 260 & 40 \\
7 & 260 & 45 \\
8 & 260 & 50 \\
9 & 260 & 55 \\
10 & 260 & 60 \\
11 & 280 & 40 \\
12 & 280 & 45 \\
13 & 280 & 50 \\
14 & 280 & 50 \\
15 & 280 & 50 \\
16 & 280 & 55 \\
17 & 280 & 60 \\
18 & 300 & 5 \\
19 & 300 & 10 \\
20 & 300 & 20 \\
21 & 320 & 2,5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2,5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
28 & 340 & 20 \\
\bottomrule
\end{tabularx}
\end{table}
\end{document}
这是我使用过的最好的方法longtable（我增加了转到其他页面的行数）。
\begin{document}
\begin{longtable}{@{}P{4cm}P{4cm}P{4cm}@{}}
\caption{Planejamento experimental.}\\
\toprule
\textbf{Experimento nº} & \textbf{Temperatura (°C)} & \textbf{WHSV (h$^{-1}$)} \\
\midrule
1 & 240 & 40 \\
2 & 240 & 45 \\
3 & 240 & 50 \\
4 & 240 & 55 \\
5 & 240 & 60 \\
6 & 260 & 40 \\
7 & 260 & 45 \\
8 & 260 & 50 \\
9 & 260 & 55 \\
10 & 260 & 60 \\
11 & 280 & 40 \\
12 & 280 & 45 \\
13 & 280 & 50 \\
14 & 280 & 50 \\
15 & 280 & 50 \\
16 & 280 & 55 \\
17 & 280 & 60 \\
18 & 300 & 5 \\
19 & 300 & 10 \\
20 & 300 & 20 \\
21 & 320 & 2,5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2,5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
28 & 340 & 20 \\
19 & 300 & 10 \\
20 & 300 & 20 \\
21 & 320 & 2,5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2,5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
28 & 340 & 20 \\
20 & 300 & 20 \\
21 & 320 & 2,5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2,5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
\bottomrule
\label{tab:MatrizPlanExp}\\
\end{longtable}
\end{document}
我想：
1）使用\small字体，但longtable不减小标题的字体。
2） 有一行结束并开始分割表。
3）在分隔页上写上表格在下一页继续，或类似内容。
请帮我。
答案1
你想做这样的事吗？
\documentclass[12pt]{article}
\usepackage{longtable}
\begin{document}
\begin{small}
\begin{longtable}{ p{4cm} p{4cm} p{4cm} }
\caption{Planejamento experimental.} \\
\hline
\multicolumn{1}{c}{\textbf{Experimento nº}} & \multicolumn{1}{c}{\textbf{Temperatura (°C)}} & \multicolumn{1}{c}{\textbf{WHSV (h$^{-1}$)}} \\
\hline
\endfirsthead
\multicolumn{3}{c}
{\tablename\ \thetable\ -- \textit{Continued from previous page}} \\
\hline
\multicolumn{1}{c}{\textbf{Experimento nº}} & \multicolumn{1}{c}{\textbf{Temperatura (°C)}} & \multicolumn{1}{c}{\textbf{WHSV (h$^{-1}$)}} \\
\hline
\endhead
\hline \multicolumn{3}{r}{\textit{Continued on next page}} \\
\endfoot
\hline
\endlastfoot
\multicolumn{1}{c}{1} & \multicolumn{1}{c}{240} & \multicolumn{1}{c}{40} \\
\multicolumn{1}{c}{2} & \multicolumn{1}{c}{240} & \multicolumn{1}{c}{45} \\
\multicolumn{1}{c}{3} & \multicolumn{1}{c}{240} & \multicolumn{1}{c}{50} \\
\multicolumn{1}{c}{4} & \multicolumn{1}{c}{240} & \multicolumn{1}{c}{55} \\
\multicolumn{1}{c}{5} & \multicolumn{1}{c}{240} & \multicolumn{1}{c}{60} \\
\multicolumn{1}{c}{6} & \multicolumn{1}{c}{260} & \multicolumn{1}{c}{40} \\
\multicolumn{1}{c}{7} & \multicolumn{1}{c}{260} & \multicolumn{1}{c}{45} \\
\multicolumn{1}{c}{8} & \multicolumn{1}{c}{260} & \multicolumn{1}{c}{50} \\
\multicolumn{1}{c}{9} & \multicolumn{1}{c}{260} & \multicolumn{1}{c}{55} \\
\multicolumn{1}{c}{10} & \multicolumn{1}{c}{260} & \multicolumn{1}{c}{60} \\
\multicolumn{1}{c}{11} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{40} \\
\multicolumn{1}{c}{12} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{45} \\
\multicolumn{1}{c}{13} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{50} \\
\multicolumn{1}{c}{14} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{50} \\
\multicolumn{1}{c}{15} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{50} \\
\multicolumn{1}{c}{16} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{55} \\
\multicolumn{1}{c}{17} & \multicolumn{1}{c}{280} & \multicolumn{1}{c}{60} \\
\multicolumn{1}{c}{18} & \multicolumn{1}{c}{300} & \multicolumn{1}{c}{5 }\\
\multicolumn{1}{c}{19} & \multicolumn{1}{c}{300} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{20} & \multicolumn{1}{c}{300} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{21} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{2,5} \\
\multicolumn{1}{c}{22} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{5} \\
\multicolumn{1}{c}{23} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{24} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{25} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{2,5} \\
\multicolumn{1}{c}{26} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{5} \\
\multicolumn{1}{c}{27} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{28} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{19} & \multicolumn{1}{c}{300} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{20} & \multicolumn{1}{c}{300} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{21} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{2,5} \\
\multicolumn{1}{c}{22} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{5} \\
\multicolumn{1}{c}{23} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{24} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{25} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{2,5} \\
\multicolumn{1}{c}{26} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{5} \\
\multicolumn{1}{c}{27} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{28} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{20} & \multicolumn{1}{c}{300} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{21} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{2,5} \\
\multicolumn{1}{c}{22} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{5} \\
\multicolumn{1}{c}{23} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{10} \\
\multicolumn{1}{c}{24} & \multicolumn{1}{c}{320} & \multicolumn{1}{c}{20} \\
\multicolumn{1}{c}{25} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{2,5} \\
\multicolumn{1}{c}{26} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{5} \\
\multicolumn{1}{c}{27} & \multicolumn{1}{c}{340} & \multicolumn{1}{c}{10} \\
\end{longtable}
\end{small}
\end{document}
答案2
三年后...可以使用功能强大的新表格包来编写此表格tabularray。为了更好地对齐列中的数字，我将使用siunitx包（作为tabularray库加载）：
\documentclass[12pt]{article}
\usepackage{tabularray}
\UseTblrLibrary{booktabs,siunitx}
\begin{document}
\begin{longtblr}[caption = {Planejamento experimental.}
]%
{colspec={*{3}{ X[c,si]} },
rowhead = {1},
rows = {font=\small}
}
\toprule
\mbox{Experimento nº}
& \mbox{Temperatura (\si{\celsius})}
& \mbox{WH{S}V (h$^{-1}$)}
\\
\midrule
1 & 240 & 40 \\
2 & 240 & 45 \\
3 & 240 & 50 \\
4 & 240 & 55 \\
5 & 240 & 60 \\
6 & 260 & 40 \\
7 & 45 & 45 \\
8 & 260 & 50 \\
9 & 260 & 55 \\
10 & 260 & 60 \\
11 & 280 & 40 \\
12 & 280 & 45 \\
13 & 280 & 50 \\
14 & 280 & 50 \\
15 & 280 & 50 \\
16 & 280 & 55 \\
17 & 280 & 60 \\
18 & 300 & 5 \\
19 & 300 & 10 \\
20 & 300 & 20 \\
21 & 320 & 2.5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2.5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
28 & 340 & 20 \\
19 & 300 & 10 \\
20 & 300 & 20 \\
21 & 320 & 2.5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2.5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
28 & 340 & 20 \\
20 & 300 & 20 \\
21 & 320 & 2.5 \\
22 & 320 & 5 \\
23 & 320 & 10 \\
24 & 320 & 20 \\
25 & 340 & 2.5 \\
26 & 340 & 5 \\
27 & 340 & 10 \\
\bottomrule
\end{longtblr}
\end{document}
编辑： 代替
\mbox{Experimento nº}
& \mbox{Temperatura (\si{\celsius})}
& \mbox{WH{S}V (h$^{-1}$)}
\\
可以使用
{{{Experimento nº}}}
& {{{Temperatura (\si{\celsius})}}}
& {{{WH{S}V (h$^{-1}$)}}}
\\
结果与以前相同，但表格代码更符合tabularray精神:-)