第7章的代码运行时报如下错误，请问怎么解决？

[gitqinxinyu]

Traceback (most recent call last): File "D:/GraphNeuralNetwork-master/GraphNeuralNetwork-master/chapter7/main.py", line 71, in train() File "D:/GraphNeuralNetwork-master/GraphNeuralNetwork-master/chapter7/main.py", line 47, in train batch_sampling_result = multihop_sampling(batch_src_index, NUM_NEIGHBORS_LIST, data.adjacency_dict) File "D:\GraphNeuralNetwork-master\GraphNeuralNetwork-master\chapter7\sampling.py", line 37, in multihop_sampling hopk_result = sampling(sampling_result[0], hopk_num, neighbor_table) File "D:\GraphNeuralNetwork-master\GraphNeuralNetwork-master\chapter7\sampling.py", line 19, in sampling res = np.random.choice(neighbor_table[sid], size=(sample_num, )) TypeError: 'coo_matrix' object does not support indexing

[hunauchenym]

老兄到底如何解决的呢？

[hunauchenym]

line 19改为： neighbor_nodes=neighbor_table.getrow(sid).nonzero() res = np.random.choice(np.array(neighbor_nodes).flatten(), size=sample_num)