2017-09-13 57 views

回答

2

压痕没有奇迹:

[ # this one contains 2 items 
    [ # each of this contains 1 item 
     [1., 2., 3.] # each of this contains 3 items 
    ], 
    [ 
     [7., 8., 9.] 
    ] 
] 

因此,形状[2,1,3]

+1

是它....谢谢。 –

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