二維陣列(2d array) matrix

import numpy as np
fru_items=[["apple","banana","cherry","durian","eggplant","fig"],
             [0,1,2,3,4,5]]
n_fru_items=np.array(fru_items)
print(n_fru_items)
print(type(n_fru_items))
print("維度",n_fru_items.ndim)
print("形狀是{}".format(n_fru_items.shape))
print("數量是",n_fru_items.size)

結果是

[['apple' 'banana' 'cherry' 'durian' 'eggplant' 'fig']
 ['0' '1' '2' '3' '4' '5']]
<class 'numpy.ndarray'>
維度 2
形狀是(2, 6)
數量是 12

numpy 一維(vettor)

import numpy as np
fruit=np.array(["apple","banana","cherry","durian","eggplant","fig"])
items=np.array((0,1,2,3,4,5))
print(fruit)
print(items)
print(type(fruit))
print(type(items))

結果

['apple' 'banana' 'cherry' 'durian' 'eggplant' 'fig']
[0 1 2 3 4 5]
<class 'numpy.ndarray'>
<class 'numpy.ndarray'>