相关代码 |
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graph G { size="3,3" ratio="fill" node[shape="circle"] edge[style="bold"] a; b; c; d; e; f; g; h; i; j; c -- a[label="1"] a -- b[color="gray",style="bold",weight=0] f -- c[label="2"] g -- f[label="3"] f -- h[label="7"] g -- d[label="4"] b -- e[label="6"] b -- d[label="5"] e -- d[color="gray",style="bold",weight=0] i -- j[label="8"] }