import numpy as np a = np.array([1, 2, 3], [4, 5, 6])
import numpy as np a = np.array([[1, 2, 3], [4, 5, 6]])
多加一个[]
import numpy as np a = np.array([1, 2, 3], [4, 5, 6])
import numpy as np a = np.array([[1, 2, 3], [4, 5, 6]])
多加一个[]
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