创建数组的副本
2019-07-06 本文已影响0人
妈耶0000
import numpy as np
>> x = np.array([[12,5,2,4],
[7,6,8,8],
[1,6,7,7]])
array([[12, 5, 2, 4],
[ 7, 6, 8, 8],
[ 1, 6, 7, 7]])
>> x_copy = x.copy()
>> x_copy[0][0] = 66
1.打印 x_copy
>> print(x_copy)
[[66 5 2 4]
[ 7 6 8 8]
[ 1 6 7 7]]
2.打印 原来的x 发现x没改变
>> print(x)
[[12 5 2 4]
[ 7 6 8 8]
[ 1 6 7 7]]
