NumPy 如何构造多维数组

– Startweb import numpy as np # numpy.array(object, dtype=None, copy=True, order='K', subok=False, ndmin=0) a = np.array(((1, 2), (3, 4))) # 元组转数组 a = np.array([[1, 2], [3, 4]]) # 列表转数组 # numpy.z

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