这是一种通过对权重求和从加权多图创建加权图的方法：
import networkx as nx
# weighted MultiGraph
M = nx.MultiGraph()
M.add_edge(1,2,weight=7)
M.add_edge(1,2,weight=19)
M.add_edge(2,3,weight=42)
# create weighted graph from M
G = nx.Graph()
for u,v,data in M.edges(data=True):
w = data['weight'] if 'weight' in data else 1.0
if G.has_edge(u,v):
G[u][v]['weight'] += w
else:
G.add_edge(u, v, weight=w)
print(G.edges(data=True))
# [(1, 2, {'weight': 26}), (2, 3, {'weight': 42})]
602392714
清零编程群