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多维数组-最大最小平均值、求和
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import numpy as np
n1 = np.random.randint(0,150,size=(2,4,5))
print(n1)

运行结果：

[[[144 132 99 140 19]

[122 12 37 109 24]

[143 96 71 110 80]

[ 79 107 116 90 38]]

[[ 84 146 112 117 110]

[ 99 113 7 113 66]

[120 28 103 77 76]

[ 95 66 22 139 83]]]

print(n1.max(axis=0))

运行结果：

[[144 146 112 140 110]

[122 113 37 113 66]

[143 96 103 110 80]

[ 95 107 116 139 83]]

print(n1.min(axis=1))

运行结果：

[[22 53 39 30 1]

[16 82 53 4 29]]

print(n1.mean(axis=2))

运行结果：

[[ 85.8 66.8 85. 90.6]

[ 29.8 98.2 109.2 91.6]]

print(n1.sum(axis=0))