答案1
我可以用它重现
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[
\newcommand{\tempblock}[1]{%
\boxed{%
\begin{array}[b]{@{}ccl@{}}
p_j^{01} & & p_j^{00}#1 \\
& p_j^{11}\mathbf{I} & p_j^{10}#1\mathbf{e} \\
& & p_j^{10}#1
\end{array}%
}%
}
\renewcommand{\arraystretch}{1.3}
\addtolength{\arraycolsep}{-1.2pt}% adjust this to avoid an overfull box, if necessary
\begin{pmatrix}
\begin{array}{@{}ccc@{}c@{}c@{}ccc@{}}
p_j^{11} & p_j^{10} \\
p_j^{11} & & \tempblock{} \\
& & & \ddots \\
p_j^{11} & & & & \tempblock{} \\
p_j^{11} & & & & & \tempblock{t} \\
& p_j^{00} & & & & & p_j^{01} \\
& p_j^{00}\mathbf{e} & & & & & & p_j^{11}\mathbf{I} \\
p_j^{11} & p_j^{00}
\end{array}
\end{pmatrix}
\]
\end{document}