Python中array数组元素的添加、删除与替换

Python中数组元素的添加与删除(array类型)
添加：np.append()
删除：np.delete()

import numpy as np

a=np.array([1, 2, 3])
print(a)
a_1 = np.delete(a, [2])
print(a_1)
a_2 = np.append(a, [5])
print(a_2)
a[0] = 5
print(a)

结果：

[1 2 3]
[1 2]
[1 2 3 5]
[5 2 3]