\documentclass[a4paper]{article}
\usepackage{array,multirow}
\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\begin{document}
\begin{table*}[t]
\begin{tabular}{|lL{2cm}cc|}
\hline
\multirow{2}{*}{Text} & \multirow{2}{*}{Long text text} & \multicolumn{2}{c|}{text} \\
& & text & text\\\hline
\end{tabular}%
\end{table*}
\end{document}
如何修复列宽Long text text？