答案1
我们可以与素数交换标签。
\documentclass{article}
\usepackage{tikz-cd}
\begin{document}
\begin{center}
\begin{tikzcd}
& I &\\
0 \arrow[r]&M \arrow[r, "\psi"] \arrow[u, "\phi" near start] &
N \arrow[lu,"\chi"' near end]
\end{tikzcd}
\end{center}
\end{document}
这是一条捷径swap
,因为由@CarLaTeX 建议,这进而导致了可以说更清晰的语法:
\arrow[lu, "\chi" {near end,swap}]