有人可以向我解释为什么这个示例的形状为[2,1,3],但我看不到吗?
[[[1.,2.,3.]],[[7.,8.,9.]]]#形状为[2,1,3]的3级张量
缩进确实令人惊奇:
[ # 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,形状是 [2,1,3]
[2,1,3]