list_net_edges = [[1, 3], [1, 6], [1, 12]]
weight = [9,9,9]
for index, item in enumerate(list_net_edges):
item = item.append(weight[index])
print(list_net_edges)
输出结果:[[1, 3, 9], [1, 6, 9], [1, 12, 9]]
list_net_edges = [[1, 3], [1, 6], [1, 12]]
weight = [9,9,9]
for index, item in enumerate(list_net_edges):
item = item.append(weight[index])
print(list_net_edges)
输出结果:[[1, 3, 9], [1, 6, 9], [1, 12, 9]]