numpy中stack的用法直观理解

首先生成一些数， import numpy as np a = np.arange(1, 7).reshape((2, 3)) b = np.arange(7, 13).reshape((2, 3)) c = np.arange(13, 19).reshape((2, 3)) print('a = \n', a) print('b = \n', b) print('c = \n', c) 即下面

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