b=np.arange(0,30).reshape((5,6))
array([[ 0, 1, 2, 3, 4, 5],
[ 6, 7, 8, 9, 10, 11],
[12, 13, 14, 15, 16, 17],
[18, 19, 20, 21, 22, 23],
[24, 25, 26, 27, 28, 29]])
b[[0,2],[0,1]]
array([ 0, 13])
上面怎么只输出了两个元素[0,13],两行和两列相交,应该是4个元素啊,谢谢
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