更新 structure.tex

Book/structure.tex

@@ -631,5 +631,13 @@ addtohook={%
 \makeatother
 %上述设置的作用是URL自动换行
 
-
+%%%%%%%%%%%chapter 7---------------------------------------
+%\definecolor{myblack}{rgb}{0.15,0.15,0.15}
+\definecolor{myblack}{rgb}{0.2,0.2,205.2}
+\newlength{\hseg}
+\newlength{\wnode}
+\newlength{\hnode}
+\newlength{\wseg}
+\usepackage{collcell}
+\usepackage[mathscr]{euscript}