#!-*- coding:utf8-*-
import networkx as nx
import matplotlib.pyplot as plt
import random
G=nx.Graph()
for u, v in nx.barabasi_albert_graph(10,2,seed=1).edges():
G.add_edge(u,v,weight=random.uniform(0,0.4))
pos=nx.spring_layout(G,iterations=20)
#以下语句绘制以带宽为线的宽度的图
nx.draw_networkx_edges(G,pos,width=[float(d['weight']*10) for (u,v,d) in G.edges(data=True)])
nx.draw_networkx_nodes(G,pos)
plt.show()
其中d[‘weight’]*10中的10表示放大了权值的10倍,如果权值比较大,也可以进行缩小。