測驗 $\alpha -1$
解釋上述程式碼運作原理
st_rotate_left
digraph st_rotate_left {
graph [center=true, margin=0.01, nodesep=0.1, ranksep=0.2, width=2,ratio=.25];
node [fontname="Courier New",color="0.0 0.0 0.0",fixedsize=true,width=0.6,shape=circle,label="",fontsize="20"];
node [margin=0.02,fillcolor="lightgrey"];
edge [dir=none];