```c \documentclass[tikz]{standalone} \usepackage{tikz} \usetikzlibrary{graphs,graphdrawing,} \usegdlibrary{layered} \begin{document} \begin{tikzpicture} \graph [ layered layout, nodes={draw,minimum height=3em,text width=5em,align=center,rounded corners}, level distance=2cm, sibling distance=5mm, ] { Adversarial example -> { Attack -> { Knowledge based -> { /"White-box", /"Black-box" }, Target based -> { Targeted, /"Non-targeted" } }, Defense -> { Detection, Model Enhancement -> { Adversarial training, Network construction, Testing, Verification } } } }; \end{tikzpicture} \end{document} ```  这个例子需要 LuaLaTeX 编译，图的细节方面可能不太容易调整，还是等待其他更好的回答吧