python數組

1.多維數組的屬性 import numpy as np arr1=np.arange(8) arr2=arr1.reshape(2,4) print('arr1:',arr1) print('arr2:',arr2) print('arr2[1,2:3]:',arr2[1,2:3]) print('arr2[:,2]:',arr2[:,2]) print('arr2[1][2:3]:',arr2

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