```tex documentclass[a4paper, 12pt, UTF8]{ctexart} usepackage{matnoble-doc-cn} usepackage{amsmath} usepackage{array} usepackage{tabulary} begin{document} [ left[ {begin{array}{c:c} begin{matrix} 1 ...
这个人很懒,暂无签名信息
```tex documentclass[a4paper, 12pt, UTF8]{ctexart} usepackage{matnoble-doc-cn} usepackage{amsmath} usepackage{array} usepackage{tabulary} begin{document} [ left[ {begin{array}{c:c} begin{matrix} 1 ...