在list中直接設出多維陣列

attach

d=[[[i for i in range(3)] for _ in range(5)] for _ in range(4)]

[[[0, 1, 2, 3], [0, 1, 2, 3]], [[0, 1, 2, 3], [0, 1, 2, 3]], [[0, 1, 2, 3], [0, 1, 2, 3]]]