是否可以根据节点大小更改字体大小？

根据NetworkX https://networkx.github.io/documentation/networkx-1.10/reference/generated/networkx.drawing.nx_pylab.draw_networkx.html#networkx.drawing.nx_pylab.draw_networkx,

draw_networkx(G, pos=None, arrows=True, with_labels=True, **kwds), 

node_size可以是标量或数组，但是font_size需要是整数。如果节点很大，如何将字体更改为更大？事实上，是否可以根据节点大小来改变字体大小呢？

确实没有办法传递字体大小数组。两个都nx.draw https://networkx.github.io/documentation/stable/reference/generated/networkx.drawing.nx_pylab.draw.html#networkx.drawing.nx_pylab.draw and draw_networkx_labels https://networkx.github.io/documentation/stable/reference/generated/networkx.drawing.nx_pylab.draw_networkx_labels.html#networkx.drawing.nx_pylab.draw_networkx_labels仅接受整数作为所有标签的字体大小。您必须循环遍历节点并通过 matplotlib 添加指定大小的文本。这是一个示例，与节点度数成比例缩放：

from matplotlib.pyplot import figure, text

G=nx.Graph()
e=[(1,2),(1,5),(2,3),(3,6),(5,6),(4,2),(4,3),(3,5),(1,3)]
G.add_edges_from(e)
pos = nx.spring_layout(G)

figure(figsize=(10,6))
d = dict(G.degree)
nx.draw(G, pos=pos,node_color='orange', 
        with_labels=False, 
        node_size=[d[k]*300 for k in d])
for node, (x, y) in pos.items():
    text(x, y, node, fontsize=d[node]*5, ha='center', va='center')